Jehbco Silicones, Author at Jehbco Silicones

Compliance with AS4020 Standard for products for use with drinking water

20 September 2019
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Jehbco Silicones provides a wide range of tubing products:

Internal diameters can start from 0.5 mm
Outside diameters can go up to 60 mm
Different hardnesses (durometers) are available
Different colours are available

Figure 1: Different sizes of transparent silicone tubing

Jehbco’s tubing is primarily used for fluid transfer:

Water transfer for boiling and chilled appliances
Fluid transfer in medical application
Fluid transfer in batteries or engines specific to the automotive or energy industries
Fluid transfer in precision scientific equipment for science industry (ie. laboratories)

Our tubing for water and medical applications are made of platinum rubber. These products are thoroughly post cured to further decrease levels of extractables. The process is integral so our tubing is compliant with the AS/NZS 4020 standard. Jehbco has currently tested and complies with the AS/NZS 4020 standard for platinum 70 rubber for the following colours: transparent, red-transparent, blue-transparent and black transparent.

AS/NZS 4020 is a standard that is designed to test any products for use in contact with drinking water¹. These products include tubing, pipes or any material used for applications in plumbing and water supply. The standard ensures that drinking water in contact with such products meet water quality values which are nationally recommended.

The standard provides methods of testing and compliance limits for the effect of a product/material². For the different tests of the standard, products are immersed in water or exposed to substances. Each test has specific procedures and are specific to the type of product2. The different methods of testing are described below²:

Taste of water: “A trained panel tastes water extracts to determine whether products release any compounds that impart discernible taste”ⁱⁱ

Appearance of water: Colour or turbidity of the water extract is measured.

Ability of a product to support the growth of aquatic micro-organisms: Dissolved oxygen levels are monitored during 8 weeks to examine the ability of the product to support bacterial growth.

Cytotoxic activity of water extract: Water extract is placed in contact with mammalian cell lines. Any adverse effect on the cell health is considered as evidence of a cytotoxic effect.

Mutagenic activity of water extract: An AMES test is used. Specific bacteria are mixed with the water extract. Any change in the bacteria’s genetic nature is considered as evidence of mutagenic activity

Extraction of metals: Levels of arsenic, antimony, barium, cadmium, chromium, copper, lead, mercury, molybdenum, nickel, selenium and silver in the water extract are analysed and compared to the limits of the National Health and Medical Research Council (NHMRC) guidelines.

High-Temperature tests: Products in contact with hot water are tested at high temperaturesⁱⁱ.

Products are required to comply with all the tests relevant for that product type to be certified by AS/NZS 4020 standard. Jehbco’s tubing is regularly tested as the test reports for the AS/NZS 4020 test are valid for 5 years³.

To learn more about our silicone tubing, see our tubing page or contact us.

References

Australian/New Zealand Standard, “AZ/NZS 4020 Standard` in SAI global limited website, viewed on 25th June 2019, https://www.saiglobal.com/PDFTemp/Previews/OSH/as/as4000/4000/4020-2005.pdf
AWQC, “Overview of the Standard” in AWQC website. Viewed on 25th June 2019, https://www.awqc.com.au/our-services/product-testing/overview-of-the-standard
Eurofins, “AS/NZS 4020 Test for Watermark™ Certification” in Eurofins website, viewed on 25th June 2019, https://www.eurofins.com.au/biopharma-services/testing-solutions/chemistry-toxicology/asnzs-4020-test-for-watermark-certification/

Seals, Gaskets and Compression set

29 August 2019
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From food processing to petrochemicals, silicone seals and gaskets find a multitude of applications. The key factor in understanding what makes silicone preferable over other materials is its Compression Set Resistance.

Compression set resistance is the ability of rubber to return to its original thickness after prolonged compressive stresses at a given temperature and deflection¹.

Compression set results for a material are expressed as a percentage of the maximum figure. A compression set of 100% says that the elastomer never recovers from its compressed state. The lower the percentage figure, the better the material resists permanent deformation under a given deflection and temperature range. A low value means that the tested rubber has a good capacity to keep its sealing properties and will have a better chance of effecting a seal in a given working environment for a longer period².

The sealing application could be either static or dynamic with combinations of contact-types i.e. non-metal to metal, or metal to metal. To ensure the right seal, the shape of the seal must be retained over the time period it is designed for in every case³. The property that directly corresponds to shape retention is compression set. We help our customers identify the right silicone with the right compression set for their application.

You can find the compression set values in our Certificate of Conformance, which we provide on request.

An example of the technical specification we provide as part of the Certificate of conformance.

After the rubber selection, choosing the correct extrusion profile is the next step in the design process. Customers can provide their own extrusion designs and samples or provide us with the details of the application for us to create a new design from scratch.

Jehbco specialises in manufacturing gaskets and o-rings. Ultimately, it is the manufacture of gaskets to the right dimension and strength that makes the seal work and fulfil its purpose. Our gasket manufacturing quality assurance comprises comprehensive steps right from generating drawings with dimensional tolerances to sequential step by step inspection of cut lengths, cut quality, jig preparation and joint strength.

O-ring test rig

2.2mm dia sponge cord gaskets

The testing phase usually involves us sending samples and the customer testing them at their facility. We also have in-house testing facilities to check the joint strength and coefficient of friction. We have a dedicated O-ring test rig on which we could carry-out leak tests and compression tests. We can develop O-rings made of silicone rubber and sponge to match our customer’s requirement based on their sealing data. Please refer to our O-ring design article here.

To match our products with your application, please see our applications page and contact us if you have any silicone queries.

References

Laurence W. McKeen, in The Effect of Creep and Other Time Related Factors on Plastics and Elastomers (Third Edition), 2015
Andrew Onions, Compression Set of Elastomeric Materials & Recognising the Risks, MacLellan Rubber 19 January 2015.
Gillier R, Lefrancois M, Ritter T, Static Sealing – Concept & Technologies, Technetic Group.

Silicone Colour Matching

15 August 2019
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Jehbco Silicones provides silicone solutions to a wide variety of industries, ranging from construction, to food and beverages. For many projects, our customers are happy with a standard colour such as white, but we understand that some projects have strict aesthetic requirements, and as such require a little more attention.

Description: A small sample of the colours we can produce at Jehbco Manufacturing

For example, blue is the standard colour for seals in the food and beverage industry, as the high contrast of colours can alert production staff if the seal is damaged and contaminates the food product. Our silicone seals are perfect for this application as not only are we able to make practically any of our existing or new profiles in blue, but they are also 100% food-grade.

Another example of where we would use our custom colour matching services would be for the architectural industry. We know that any design-focused industry such as architecture places a strong emphasis on the aesthetics of the final project. As such, we always work with our customers to develop the perfect custom solution in terms of design and appearance. Whether it be matching the colour of our silicone expansion joints to your panelling, or implementing the perfect colour combination using our window glazing seals, Jehbco will be able to deliver.

Beyond the more obvious examples above, some of our customers purchase a wide range of products from us and colour code each individual item to help differentiate similar products, or to prevent confusion when receipting in goods. One customer of ours purchases a range of different sized silicone tubes, and requests that every different sized tube is a different colour. In the past, our customer told us that the wrong sized tubing would often be installed by their production team due to the different sizes being so hard to tell apart. After switching over to our custom-coloured tubing, the number of defects due to incorrect tubing sizes almost dropped down to zero!

It is clear to see the benefits of using Jehbco’s custom colour matching services, the possibilities are only limited by your imagination. At Jehbco, we only produce 100% pure silicone products for your guaranteed peace of mind. If you have an idea that might require a custom colour, or want to manufacture a custom solution that you can be confident with, feel free to consult our applications page and contact us with any questions.

Silicone vs SBR

1 August 2019
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Jehbco Silicones is an industry leader, manufacturing high quality silicone extrusions in Australia. Whilst silicone and Styrene Butadiene (SBR) share some similarities in their characteristics and chemical resistance levels, their physical properties vary, which depending on the conditions of application, a justified material selection can be made.

SBR	Silicone
-45° to 100° C	-50° to 230° C
Great compression set	Excellent compression set
Fair weather resistance	Excellent weather resistance
Approx. tensile strength 18 MPa	Approx. tensile strength 5 MPa
Excellent abrasion resistance	Poor abrasion resistance
Not compatible with: alphatic hydrocarbon solvents, aromatic hydrocarbon solvents, petroleum products	Not compatible with: hydrocarbon fuels, alkalis and acids, steam over 121 °C, trichloroethylene, aromatic hydrocarbons.
Compatible with: acids, alcohols, oxygenated solvents, oils, alkali, hot and cold water, salt water	Compatible with: oils, brake fluids, hot and cold water, salt water, high molecular weight chlorinated hydrocarbons, fire resistant hydraulic fluid, ozone.

Silicone and SBR can both withstand temperatures as low as approximately -40° C, making them both considerable for low temperature applications. However, silicone rubber offers a significantly higher heat resistance making it an ideal material for high temperature applications.

Very similar to natural rubber, SBR has an excellent abrasion resistance which make an ideal material choice for dynamical applications involving a large amount of physical demand. This is not the case with silicone, which with its low abrasion resistance is much better suited for high-temperature static applications. The tensile strength of SBR is much higher at 18 MPa which also make it an ideal candidate for applications with high dynamical loading and force.

Both materials exhibit the same degree of compression set allowing both materials being acceptable for applications that demand high durability.

In general, silicone is an ideal material for static and high-temperature applications whereas SBR is a common elastomer for applications requiring a high resistance to dynamical load and friction. The ideal material for your application highly depends on your requirements. To help guide you in choosing the right material for your application, please contact us.

The Strengths & Common Use of Silicone in Food Processing

19 July 2019
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Silicone rubber is widely used in food processing from home to industrial-scale cooking. The properties of silicone make this polymer material ideal for food applications. Silicone combines the following properties:

The ability to withstand extremely high and low temperatures (from -60°C to + 200°C) for extended periods of time
Chemical resistance and compatibility
Suitability for contact with dry, aqueous and fatty foods
High quality and long-lasting product
Safety, as the levels of volatiles and extractable particles rejected are low

Jehbco Silicones has provided custom made silicone solutions for the last 40 years and aims to keep providing high-quality products to the food industry. All food-grade silicone produced by Jehbco uses U.S. Food and Drug Administration (FDA) approved materials and follows FDA standards. All food grade products made by Jehbco are thoroughly post-cured to further decrease levels of extractables.

Additionally, Jehbco can make silicone food grade heat stable products using a specially designed additive. This increases the extreme temperatures that silicone can withstand from 200°C to 300°C.

Jehbco extrudes any shape, cuts to any particular length and bonds to form a variety of inner-diameter sizes.

Furthermore, Jehbco has recently researched and developed a platinum sponge which meets food grade requirements of FDA. Platinum food grade sponge made by Jehbco has the following advantages:

The ability to withstand extreme high and low temperatures (from -40°C to + 200°C)
Low density (400-650 kg m-3)
Low compression deflection (92.4 kPa, 13.4 psi)
Low hardness (20 Shore A)
Excellent compressibility (9%)

Food grade silicone products are used by a wide range of industries including oven/refrigeration, milk and dairy, meat processing, powder containment/transport, beverages, and food packaging etc. For example, some of Jehbco’s products are used in-line for some of their processes such as conveyors and others are used in batch processes such as fermentation vats.

Similarly, a wide range of food-grade silicone products can be produced:

Seals: commonly used for ovens, refrigeration units, powder containment/hoppers, and blenders. The majority of seals sold by Jehbco are corner-joined or butt-joined for sealing application, but Jehbco can also provide custom made O-rings for sealing applications.
Inflatable gaskets: used for a number of applications, from sealing of machinery to in-line support of food products (e.g. some of Jehbco’ inflatable gaskets are used to hold ice-cream cones in place during production).
Sheets: often used for heat/vibratory insulation
Tubing: often used for fluid transfer, pumping application

If you would like to learn more about how silicone can be used in food applications please see our applications page or contact us.

Silicone Extrusion Cut Quality

23 June 2019
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At Jehbco, silicone rubber extrusions are cut accurately to our customers desired lengths. Using our state-of-the art cutting machine we are able to produce precise and clean straight cuts. Our in-house cutting capability reduces the lead-time and cost for our customers.

Silicone Extrusion Cut Quality

Having a high quality cut is significant for not only the appearance but also the intended function of the extrudates. We design and develop in-house cutting tools and accessories to cut not only tubes and cords but also complicated profiles of various hardness. The right blade shape is determined based on our research. We have extended our cutting capabilities to include silicone sponge extrusions which exhibit a high degree of difficulty in handling due to their low stiffness and hardness.

The cutting machine uses a flying knife type blade which ensures a uniform cut as the adjustable blade speed allows Jehbco to cut extrusions with a wall thickness of less than 0.1mm.

We also have the option of using stainless steel cutting blades for pharmaceuticals and food-grade applications. Moreover, the static from the cut pieces are removed using static-removal instruments to ensure dust and other air-borne particles don’t adhere to the surface of the extrudates.

With our R&D we have optimized the cutting operations for high consistency and reliability thus meeting strict cut length tolerances. The tolerances adhere to our ISO 3302-1:2014 Rubber tolerance standard. Periodic calibrations are carried out and machine data is maintained as part of Jehbco’s quality control processes. This is then audited yearly as part of our ISO 9001:2015 accreditation.

2.5mm dia chord, cut length 17.8 mm

10.9 OD tubes, cut length 1000 mm

Our straight cut extrusions make sure the butt-joints in our gaskets are of the highest quality. We are currently studying and developing alternate cutting methods using ultrasonic blades for cuts that are not perpendicular to the length of the extrusion. For example, 45 degree cut for corner joint gaskets. Our use of cutting jigs makes sure the process is highly efficient and the cut lengths are error free.

Jehbco makes every effort to ensure our product fits your application. To match our products with your application, please see our applications page and contact us if you have any silicone queries.

References

Yarra, S., Gordaninejad, F., Behrooz, M. and Pekcan, G. (2018). Performance of natural rubber and silicone-based magnetorheological elastomers under large-strain combined axial and shear loading. Journal of Intelligent Material Systems and Structures, 30(2), pp.228-242.
Yarra, S., Gordaninejad, F., Behrooz, M. and Pekcan, G. (2018). Performance of natural rubber and silicone-based magnetorheological elastomers under large-strain combined axial and shear loading. Journal of Intelligent Material Systems and Structures, 30(2), pp.228-242.
https://www.gillardcutting.com/technical/faqs/which-knife-blade-should-i-use

Eliminating Volatile Organic Compounds (VOCs) and Leachables from Silicone Rubber Using Thorough Post-curing Processes

29 May 2019
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Silicones are widely used in food, medical and pharmaceutical industries due to their excellent stability over a wide range of temperatures, mechanical strength, elastic properties and non-toxic material characteristics. However, such industries who typically use silicone for sensitive applications have extremely strict tolerances on leachables and volatile organic compounds (VOCs). Without a dedicated post-curing process, outgassing of silicone elastomers can occur under high temperature and low pressure environments1. At Jehbco, silicone items are subject to a thorough post-curing process to ensure that leachable substances present in the extrusions are eradicated.

Figure 1: Silicone tubing being prepared for post-curing.

Without post-curing, there are two major constituents that can be present in the silicone rubber. The first category encompasses volatile organic compounds2. These carbon containing compounds are typically only present in silicones cured with a peroxide catalyst. During the extrusion process, the peroxide catalyst facilitates cross-linking of silicone by joining methyl and vinyl groups between silicone chains. However, when the elastomer is fully cross-linked, the organic peroxide migrates to the surface of the extrusion. This process is extremely slow, and is accelerated at higher temperatures. The residual peroxide and peroxide by-products form the majority of VOC content found in silicone rubber. These are eliminated by using a platinum catalyst. Here, the platinum catalyst stays is embedded strongly in the rubber without forming any volatile compounds, and does not leach into its surroundings. The only VOCs found in platinum are derived from degradation of carbon based side-groups on the siloxane chains.

The second category of leachables are uncrosslinked low molecular weight siloxanes. Silicone rubber consists of long-chain molecules made by repeating units of methylsiloxanes and methylvinylsiloxanes2. While most of these are cross-linked completely, some short-chain molecules are not crosslinked, and their small molecular size means they are free to move within the silicone bulk. Thus under the proper conditions, these molecules can leach into their surroundings. Typically, more low molecular weight compounds are found in platinum curing materials due to the curing mechanism requiring a Si-H containing siloxane to be added in excess, as such these compounds do not fully cure into the material. It should be noted that although present, low molecular weight siloxnaes have no known negative biological effects2. Low molecular weight siloxanes are present in both peroxide and platinum catalysed compounds, which is why even platinum compounds require thorough post-curing to facilitate to pass strict regulations required for products used in sensitive industries. A rough quantitative analysis of the extractables in non post-cured silicone can be found in Table 1.

Table 1: Quantitative analysis of extractables found in platinum and peroxide cured silicone2

	Platinum Cured Silicone (50° ShA)	Peroxide Cured Silicone (50° ShA)
Organic Carbon	2.63	62.73
Low Mw Siloxanes	10241	3837

Typical guidelines for post-curing processes specify 4 hours at 200°C3 or for the product to be post-cured at least 10°C above the specified operating conditions for 4 hours4. The first method ensures that all of the possible leachables are extracted, whereas the second method ensures that only compounds that are likely to leach into the environment under standard operating conditions are removed. In addition to specified post-curing temperatures, post-curing also requires a high airflow to ensure that the leachables are properly vented3,4. To ensure peace of mind for our customers, all of our products are post-cured at 200°C for 4 hours (excluding heating up and cooling down time) to ensure all of the leachables are eradicated from our silicone profiles. This process has some small effects on the mechanical properties of the silicone, typically raising the hardness while lowering the material’s elastic properties5. The compression set of the material is typically improved by this process5. At Jehbco, platinum and peroxide products are never post-cured in the same unit, to avoid the peroxide leachables damaging the platinum cured silicone3.

Due to our thorough extraction process, Jehbco silicone products exhibit extremely low levels of leachables, far lower than required under food grade standards such as FDA 21 CFR 177.2600 Rubber Articles intended for repeated use. The extraction tests specified in this standard require leachable levels below 4 mg/in2 after 2 hours of continuous extraction in hexane at reflux temperature, or 1 mg/in2 after 2 hours of continuous extraction in water at reflux temperature. These are in addition to further limits at different time intervals. Jehbco products sent for leachable testing have returned results significantly lower than required, a testament to our processing capabilities.

If you would like to learn more please contact us or browse our articles.

References

Rothka, J., Studd, R., Tate, K. and Timpe, D. (2002). Outgassing of Silicone Elastomers. ISC, pp.1-9.
Malczewsk, R., Jahn, D. and Schoenherr, W. (2003). Peroxide or Platinum? Cure System Considerations for Silicone Tubing Applications. Dow Corning Healthcare.
Wacker Chemie AG (2016). SOLID AND LIQUID SILICONE RUBBER MATERIAL AND PROCESSING GUIDELINES. Munich, pp.66-67.
Xiameter (2009). Fabricating with XIAMETER High Consistency Silicone Rubber. USA, pp.45-47.
Inman, W. (2016). Post-Curing of Silicone Elastomers: When is it Necessary?. Technical Service & Development Silicone Elastomers.

Rubber Burn Tests

6 May 2019
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It is often a challenging task identifying an unknown rubber compound, as they can look and feel very similar to one another. At Jehbco Silicones, we regularly provide 100% silicone alternatives to original equipment manufacturer (OEM) parts, and as such need to know what material the original part was supplied in.

There are multiple methods of determining what type of rubber is used in a product, but methods such as elemental analysis are costly, require specialised equipment, and is not practical in the field. One tried and tested method that we use regularly at Jehbco is a burn test, in which a small sample of the rubber material is combusted. The characteristic burning pattern, smell, smoke colour, and mode of extinguishing are all indicators that can be used to identify what the composition of the burned sample is.

The table below is a basic guide that outlines the main components of the burn test:

*Material*	*Burning Pattern*	*Smell*	*Smoke Colour*	*Extinguishing Mode*
Natural Rubber	Continuous burning	Burning rubber	Dark black smoke	Material melts and leaves sticky residue
Nitrile Rubber	Continuous burning with minor cracking	Acrylic smell	Dark smoke with black soot	Leaves a tacky residue
EPDM	Continuous burning	Chemical smell	Dark black smoke	Material melts and leaves a tack and charred residue
Silicone	Difficult to ignite, infrequent burning	Little to no smell	White smoke	Self-extinguishing, produces a white ash

There have been numerous cases where customers have thought they were purchasing one type of material, but in actuality they have been supplying an inferior grade of material or a different material altogether. We recently had a case where one of our customers wanted to replace what they thought was a nitrile O-Ring, but when we conducted a burn test on the material it melted and had a distinct burning rubber smell, which was indicative of a natural rubber material. Luckily for the customer, they were not using the O-Ring for a sensitive application, but this uncertainty in material could have had catastrophic consequences in a more critical or sensitive application.

Even within the niche area of silicone materials, some manufactures opt to add fillers to reduce costs, at the expense of inferior mechanical and chemical properties. We have conducted burn tests on many silicone parts made overseas, and an alarming amount of these parts did not behave as expected during the burn test (no white ash produced, black smoke) which suggests that fillers have been added.

At Jehbco, we only produce 100% pure silicone products for your guaranteed peace of mind. If you have any doubt about the quality of your existing rubber products, or want to manufacture a custom solution that you can be confident with, feel free to consult our applications page and contact us with any questions.

Agile, Lean and Design Thinking

29 March 2019
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Agile ‘philosophy’ was developed in attempt to develop products in a simple, fast and efficient manner. The process brings together a multidisciplinary team, thus facilitating productive interactions. As part of the process, it is necessary to include the customer as a lens for realising and validating decisions. This approach initially started within technology companies and has now made its way to manufacturers customer contacts the company directly, the factory is notified, and the manufacturing process begins within hours. Each product is customer-built, and all necessary quality testing is carried within one day. Overall, the customer receives his customised product in less than 5 days¹. This approach does not only provide a customer-focused product design, but also facilitates higher levels of cooperation within supply chains, ensuring that production reaches its full potential.

Intersection of Agile Philosophy, Lean Manufacturing and Design Thinking Diagram – Jehbco Silicones Manufacturing

Lean manufacturing is based on the principle of eliminating unnecessary work, with the aim to combine flexibility, quality and low costs². It focuses on the elimination of waste, maximising value addition, and reducing the essential support in an organisation’s processes.

Design thinking puts the customer at the core of operations, thus making products intuitive for the customers to use. The formalised process of design thinking is to discover, define, develop and deliver. Teams are encouraged to go broadly research in both the ‘discover’ and ‘develop’ phases. This process facilitates innovation and results in products that provides ultimate user-experiences.

Combining ‘Agile’, ‘Lean’, and ‘Design Thinking’ results in an efficient, sustainable, and highly-responsive business that puts its customers at the heart of their operations.

Jehbco always puts the customer first; when a customer asks about a silicone rubber through the sales department, our multi-disciplinary team of specialists are notified. The team assess the suitability of the product range for the application of interest. Jehbco works closely with the customer to achieve the best possible choice. At times, the specialists provide custom-built silicone rubber products for customers with unique applications.

In principle, Jehbco is adopting best business methodologies to provide customers with high-quality, low-cost, and customised silicone rubber products.

References

Agile Manufacturing – Case Studies Available from: http://agilemanufacturing.weebly.com/case-studies.html.
Idea. Lean Production. 2009; Available from: https://www.economist.com/news/2009/10/19/lean-production.

Quality Assurance at Jehbco

4 February 2019
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At Jehbco, quality assurance is one of our most important departments. We want to provide all of our customers, distributors and business partners guaranteed piece of mind. With this in mind, Jehbco has implemented and is maintaining a quality management system that meets the requirements of ISO 9001:2015.

ISO 9001 is an international standard that specifies the requirements for a quality management system¹. This is a standard that has been chosen and implemented by a wide range of companies around the world. The purpose of this standard is to make sure that our company has a system that aims to meet and improve customer satisfaction as well as providing conformed products².

Jehbco’s quality management system is assessed every year by an external accredited organisation which certified our company. Our last certification was obtained on the 18th May 2018 for the “manufacture and supply of silicon rubber extruded products including gaskets, mouldings and sheetings”, see Figure. This certification remains valid until 12th May 2021 but it will be subject to yearly satisfactory surveillance audits.

ISO 9001:2015 SGS Quality Management System Certification – Jehbco Silicones.

Jehbco has been ISO 9001 certified for more than 20 years. Our quality management system is a collection of documented procedures, forms, policies, records and quality plans. We regularly internally audit our different departments to make sure that all our procedures are revised and followed in order to maintain high levels and consistencies in the services and products we supply to our customers.

Jehbco aims to provide the highest quality whilst manufacturing. That is why different quality controls are placed through the process. Any raw materials that come into the company are rigorously inspected according to our procedures. During the production step, our operators carefully monitor the manufacturing process using different procedures, checklists and controls. This ensures that there are no defects and little variation in our products. All our products are also inspected before dispatch, as just another step in ensuring that our final products are exactly as our customers ordered. As well, our suppliers and subcontractors are assessed and their quality of product is controlled through incoming inspection procedure at the management review.

Any non-conformances are taken very seriously by the team at Jehbco. A process improvement book was created aiming to tackle any issues that arise at any stage of the manufacturing process, as Jehbco strives to provide the outstanding products and services to our partners. Jehbco continuously works toward the open communication between our customers and our team in the pursuit of the constant improvement of products and services, as we develop tailor-made silicone solutions for the Australian and international market.

References

https://www.iso.org/iso-9001-quality-management.html. Visited on 21st November 2018
Poksinska, Bozena; Dahlgaard, Jens Jörn; Antoni, Marc (2002). “The state of ISO 9000 certification: A study of Swedish organizations”. The TQM Magazine. 14 (5): 297. doi:10.1108/09544780210439734

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