FAQ
We have compiled a list of frequently asked questions.
About Fluoropolymer (Teflon™)
- QWhat is fluoroplastic?
- It is a plastic that simultaneously combines excellent properties such as heat resistance, chemical resistance, low friction, non-stick characteristics, and Insulation. It is often called "Teflon™", and belts and tapes made from fluoroplastic are also called "Teflon belts" and "Teflon tapes". For more details, please see the following page.
- Q: What is heat resistance of fluoroplastic?
- fluoroplastic itself is a resin with extremely high heat resistance and flame retardancy.
Although it depends on the usage environment, the maximum continuous use temperature of PTFE, a type of fluoroplastic is 260°C. It is also resistant to low temperatures, and can be used continuously in environments of -180°C.
- Q: What is chemical resistance of fluoroplastic?
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fluoroplastic is a plastic with extremely excellent chemical resistance, and is not affected by acids, alkalis, organic solvents, oils, etc. Products generally called "Teflon tubes" and "Teflon linings" have these properties, and are therefore used for fluid transport in semiconductor and liquid crystal manufacturing equipment, chemical plants, and scientific and chemical equipment that use a variety of chemicals.
- Q: Tell me about the slipperiness of fluoroplastic!
- As shown in the table below, fluoroplastic has an exceptionally low coefficient of friction among all solids. In addition, because the difference between coefficient of dynamic friction and static coefficients of friction is small, when used as a sliding material, it starts sliding very smoothly. Therefore, it can be used for oil-less bearings and shaft bearings.
Test items Coefficient of friction Measuring Instrument Universal Testing Machine Measuring method Static friction coefficient coefficient of dynamic friction unit (μs) (μD) Test piece (material) result PTFE plate 0.11 0.09 G Fabric 0.15 0.14 A Fabric 0.15 0.13 Polyurethane 0.82 0.70 PVC plate 0.31 0.33 Nylon plate 0.17 0.15 Polyacetal Sheet 0.20 0.16 silicone rubber 7.96 7.89 Stainless steel plate 0.24 0.20 - Q: Tell me about non-stick characteristics of fluoroplastic!
- fluoroplastic has extremely high non-stick characteristics.
Even if sticky materials such as rice cakes or sols are attached to fluoroplastic, they can be easily peeled off. Therefore, our fluoroplastic products are used in Conveyor belt for rice or bread dough, reusable cooking sheets, and fluoroplastic adhesive tape (Chukoh tape) for protecting heat seal bars that seal by welding with heat.
- Q: Is there any difference between the fluorine in toothpaste and fluoroplastic fluororesin sold by Chukoh Chemical Industries?
- Both are "fluorine compounds" that contain fluorine elements, but the fluorine compounds found in toothpaste and fluoroplastic that makes up our products are different types of compounds.
The fluorine components in toothpaste are used for medical and health purposes, while our fluoroplastic is widely used for industrial purposes. - QIn what industries is fluoroplastic used?
- We are involved in all kinds of manufacturing industries, including:
Industries in which fluoroplastic are used- Semiconductor manufacturing: tubes, PTFE tanks, skived tape
- Food manufacturing: belts, fluoroplastic coatings, cook sheets, fabrics
- Packaging: Adhesive tape, heat seal belt
- Automotive manufacturing: tubes, braided hoses
- Chemical plants: lining
- Construction industry: fluoroplastic membrane materials
- LCD manufacturing: adhesive tape, fabric, skived tape etc···
About the materials
- Q Please provide MSDS (Material Safety Data Sheet)/SDS (Safety Data Sheet)
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Following standardization according to JIS Z 7253: 2012, we have changed from MSDS to SDS. For the SDS of our major products, we provide product chemical information (SDS).
For other products, please contact your nearest branch office or inquiry desk.
Please note that we do not issue "MSDSplus" because we are a manufacturer that processes and molds fluoroplastic. - I would like a product catalogue.
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We have a catalog download page. Please contact us separately for other materials.
- Q: Please provide me with a certificate of conformity.
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We have set up an application form for the Export Trade Control Order Determination Certificate. Please fill out the form and apply. If there are no transit countries, please enter "None".
- Q: Can you provide a certificate of non-use of substances subject to the RoHS Directive?
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The RoHS Directive is a law enacted by the EU (European Union) that restricts the use of certain hazardous substances in electrical and electronic equipment.
In Japan, it is called the Restriction of Hazardous Substances Directive (commonly known as the RoHS Directive). Based on our quality and environmental policy, we issue a "Certificate of Non-use of RoHS Directive Substances" for products that comply with the RoHS Directive regulated substances (10 substances). (*Wrapping and packaging materials are not included.) - Q: Do the utensils, containers and packaging comply with the revised Food Sanitation Act?
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On June 1, 2020, the Positive List System came into effect, allowing the use of only substances that have been evaluated for safety in food utensils, containers, and packaging. A five-year transitional period (June 1, 2020 to May 31, 2025) has been set, during which our products that have been used for food products can be used as usual. fluoroplastic that we use frequently in our products are listed on the Positive List, which can be found on the Ministry of Health, Labor, and Welfare website. (Appendix 1, Table 1, "32. Fluorine-substituted polyolefins" PTFE Reference Number 864, PFA Reference Number 868).
- About the Positive List System for Food Utensils, Containers and Packaging (Ministry of Health, Labour and Welfare website)
- If you require a Food Hygiene Compliance Declaration, please fill in the required information below and contact us.
- About the Positive List System for Food Utensils, Containers and Packaging (Ministry of Health, Labour and Welfare website)
About product
- Q: What is Teflon™?
- Teflon™ is a registered trademark of fluoroplastic manufactured by DuPont.
Because the name "Teflon™" is so well-known, many people think that "all fluoroplastic are Teflon™", but as shown in the table below, there are many other product names for fluoroplastic besides "Teflon™". In 2015, Chemours was spun off from DuPont and became independent, and the Teflon™ trademark was transferred to Chemours. In July 2017, we signed a Teflon™ trademark license agreement with Chemours for fluoroplastic adhesive tape, and we use the Teflon™ and Teflon™ trademarks under license.Product name Manufacturer Name Polyflon™ Daikin Industries, Ltd. Neoflon™ Daikin Industries, Ltd. Teflon™ Mitsui Chemours Fluoroproducts, Chemours Tefzel® Dupont Tedlar® Dupont Fluon® AGC Cytop® AGC Algoflon® Solvay Solexis SpA Polymist® Solvay Solexis, Inc. Hylar® Solvay Solexis, Inc. Halar® Solvay Solexis, Inc. Solef® Solvay Solexis, SAS Dyneon™ Solvay Solexis, Inc. Solef® Dyneon (3M Japan) KF Polymer® Kureha Kyner® Arkema - Q: Do Chukoh Chemical Industry's products fall under the category of PFAS?
- PFAS is an abbreviation for "Per-and Polyfluoroalkyl Substances" and is a general term for a group of organic fluorine compounds.
There are more than 10,000 types of organic fluorine compounds. The main raw materials for the fluoroplastic products we manufacture are PTFE and PFA, commonly known as Teflon™, which are classified as PFAS. However, we do not manufacture products that use PFOA, PFOS, or PFHxS, which are recognized as harmful.
We are currently investigating the trends of PFAS regulations in each country together with the Japan Fluoroplastics Industry Association (JFIA), of which we are a member. We are also proposing that the three substance groups PFOA, PFOS, and PFHxS, which have been recognized as harmful, be designated as "specific PFAS" and distinguished from fluoroplastic.
For more information, please see the overview diagram created by the Japan Fluoroplastics Industry Association. → PFAS Overview Diagram (pdf) - QWhat is CHUKOH FLO™?
- CHUKOH FLO™ is a registered trademark and collective name for the high-performance resin products we manufacture.
- Q: What is C-Porous™?
- C-Porous™ is a registered trademark and collective name for fluoroplastic (ePTFE) porous products we manufacture.
- QAre there any adhesive tapes made other than those made of fluoroplastic?
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We manufacture many types of fluoroplastic adhesive tapes, but we also offer adhesive tapes with polyimide and ultra-high molecular weight polyethylene as base materials. For details, please see this page.
- How do I dispose of old products?
- ■ For household use
Please dispose of it as non-combustible waste in accordance with the rules of your local government.
■ Corporate and group customers
This is industrial waste, so please dispose of it in accordance with the Waste Disposal and Cleaning Act. - Q: Where can I buy Chukoh Chemical Industries products?
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We have agents nationwide. Please contact your nearest branch for details. You can also purchase some products from TRUSCO or online shops.
- Q: The color is slightly different from the product I bought before...
- The brown color of the fabric and adhesive tape comes from the starch that is applied to the glass cloth base material. The color varies depending on the amount of starch attached, but this does not affect the usage or properties of the product.
- Q: Regarding revision of Product code (regarding "FR" markings on adhesive tape products)
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We have recently reviewed and revised our UL certified adhesive tape products, and have changed Product code as shown in the table below, effective July 1, 2009. The products themselves remain the same as before, and there are no changes to the quality, dimensional specifications, etc.
You can continue to use it as before.Product code Old new AGF-100 AGF-100 FR ASF-110 ASF-110 FR ASF-116F ASF-116T FR ASF-118A ASF-118A FR API-114 API-114A FR - Q I can't process the shrink tube properly. It doesn't shrink.
- fluoroplastic shrink tubing shrinks when exposed to high temperatures. When processing PTFE shrink tubing with a heat gun, etc., uneven heat can occur and the tubing may deform. Processing with a heat gun is very difficult, so place the tube in an electric furnace and heat it evenly. As a guideline, it requires heating at 350°C for about 10 minutes (at 340°C, it requires heating for about 1 hour). When removing the tube after heating, it will cool rapidly depending on the surrounding environmental temperature, so we recommend allowing it to cool gradually in the furnace before removing it.
PFA and FEP shrink tubes can also be processed with a heat gun. Rotate the object and shrink it from one side to the other. Do not apply the heat gun vertically, but tilt it towards the shrinking side to avoid air getting mixed in, which will result in a neat finish. When heating in an electric furnace, process both PFA and FEP at 200°C for 10 minutes as a guideline. If processing is difficult, we can process it for you, so please contact us. - Q I would like to know the size of the mesh belt holes.
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Please refer to the following document for the mesh size of G type mesh belt and A type mesh belt.
