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A65 Polyethylene Wax Changxing Xiehe Polymer Co., Ltd. A65 Polyethylene Wax is produced by pyrolysis polyethylene and can be used to provide excellent lubrication and good dispersibility. A65 is widely used in the production of plastics,pigments and masterbatches. It is used extensively in the metal, construc...展開 A65 Polyethylene Wax is produced by pyrolysis polyethylene and can be used to provide excellent lubrication and good dispersibility. A65 is widely used in the production of plastics,pigments and masterbatches. It is used extensively in the metal, construction, and paper industries, ect. A65 can be used to provide excellent external and internal lubrication in most plastic processes. 收起
Acetyl Tributyl Citrate (ATBC) Chemceed Acetyl Tributyl Citrate (ATBC) is a used as a biodegradable plasticizer for PVC and cellulose derivates, and it is approved for food contact materials and can even been used as a food additive. ATBC is also used as an emollient for personal care/cosmetics...展開 Acetyl Tributyl Citrate (ATBC) is a used as a biodegradable plasticizer for PVC and cellulose derivates, and it is approved for food contact materials and can even been used as a food additive. ATBC is also used as an emollient for personal care/cosmetics products such as aerosol hair sprays and nail polishes. In addition, ATBC can be used for pharmaceutical coatings (USP grade available), lubricants, and inks. 收起
Benzotriazole Chemceed Benzotriazole is a corrosion inhibitor for copper and copper alloys, and is commonly used in water cooling systems. Additional benzotriazole applications include use as a silver polishing agent in dishwasher detergent, automotive antifreeze, antirust for ...展開 Benzotriazole is a corrosion inhibitor for copper and copper alloys, and is commonly used in water cooling systems. Additional benzotriazole applications include use as a silver polishing agent in dishwasher detergent, automotive antifreeze, antirust for photography, and use as a lubricant additive. 收起
Benzyl Alcohol USP Chemceed Benzyl Alcohol is used as a solvent for paints, inks, coatings. In personal care products, Benzyl Alcohol serves as a precursor in the production of esters used for soaps, perfurme, and flavor. For medical use, Benzyl Alcohol is used as a preservative due...展開 Benzyl Alcohol is used as a solvent for paints, inks, coatings. In personal care products, Benzyl Alcohol serves as a precursor in the production of esters used for soaps, perfurme, and flavor. For medical use, Benzyl Alcohol is used as a preservative due to its bacteriostatic and antipruritic properties. 收起
Benzyl Benzoate, USP Chemceed Benzyl Benzoate is a high solvating benzoate ester plasticizer that can be used in applications such as adhesives, caulks, and sealants. In inks and coatings, Benzyl Benzoate can soften binders to improve flexibility.
Butyl Benzyl Phthalate (BBP) Chemceed Butyl Benzyl Phthalate (BBP) is a is high solvating, fast fusing plasticizer with high efficiency which can be used with a variety of resins. BBP is used for many PVC calendaring and extrusion operations and is an industry standard for vinyl flooring. BBP...展開 Butyl Benzyl Phthalate (BBP) is a is high solvating, fast fusing plasticizer with high efficiency which can be used with a variety of resins. BBP is used for many PVC calendaring and extrusion operations and is an industry standard for vinyl flooring. BBP also finds use in many coatings, inks, adhesives, and caulks. 收起
Decabromodiphenyl Oxide Chemceed Decabromodiphenyl Oxide is used as a flame retardant for elastomers, wire & cable, textile coatings, electrical & electronic equipment, automotive parts, and construction materials.
Denatonium Benzoate, 20% in EG Chemceed Denatonium Benzoate is a bittering agent which is used to give a bitter taste to toxic products in order to make the product more difficult to ingest. Examples of products which contain denatonium benzoate are antifreeze, detergents, floor cleaner, paint ...展開 Denatonium Benzoate is a bittering agent which is used to give a bitter taste to toxic products in order to make the product more difficult to ingest. Examples of products which contain denatonium benzoate are antifreeze, detergents, floor cleaner, paint stripper and toilet cleaner. 收起
Dibutyl Maleate (DBM) Chemceed Dibutyl Maleate (DBM) is a plasticizer for vinyl resins, and is used for copolymers applications involving PVC and vinyl acetates. Dibutyl Maleate is an unsaturated ester which is used for creating sulfosuccinate surfactants in detergents and paints. Othe...展開 Dibutyl Maleate (DBM) is a plasticizer for vinyl resins, and is used for copolymers applications involving PVC and vinyl acetates. Dibutyl Maleate is an unsaturated ester which is used for creating sulfosuccinate surfactants in detergents and paints. Other applications of DBM include use in plastisols, dispersions, coatings, adhesives, and synthetic lubricants. 收起
Dibutyl Phthalate (DBP) Chemceed 鄰苯二甲酸二丁酯是一種增塑劑,通常應用於PVC和涂料中。ChemCeed以桶裝、手提袋裝和散裝供應。包裝需定制的請來電查問
Dibutyl Sebacate (DBS) Chemceed Dibutyl Sebacate (DBS) is used as a plasticizer suited for low temperature and is compatible with PVC, acrylic, nitrile rubber, and celluloses. Due to its non-toxicity and low temp performance DBS is ideal for vinyl food contact films. In addition, Dibuty...展開 Dibutyl Sebacate (DBS) is used as a plasticizer suited for low temperature and is compatible with PVC, acrylic, nitrile rubber, and celluloses. Due to its non-toxicity and low temp performance DBS is ideal for vinyl food contact films. In addition, Dibutyl Sebacate finds use in coatings, cosmetics, lubricants, and pharmaceuticals. 收起
Diisodecyl Adipate (DIDA) Chemceed Diisodecyl Adipate (DIDA) is a plasticizer with excellent low-temperature properties. DIDA works well as a part of a plasticizer blend, and is compatible with PVC, Cellulose acetate butyrate, Ethyl cellulose, Nitrocellulose, Polychloroprene,and Polyvinyl ...展開 Diisodecyl Adipate (DIDA) is a plasticizer with excellent low-temperature properties. DIDA works well as a part of a plasticizer blend, and is compatible with PVC, Cellulose acetate butyrate, Ethyl cellulose, Nitrocellulose, Polychloroprene,and Polyvinyl butyral. In inks and coatings, DIDA can soften binders to improve flexibility. DIDA can also be used in used in adhesives, caulk, sealants, and paint to improve properties. 收起
Diisodecyl Phthalate (DIDP) Chemceed Diisodecyl Phthalate (DIDP) is a general use high molecular weight Plasticizer. As a PVC plasticizer, DIDP is used in formualtions of screen printing inks. Additionally, DIDP can be used in applications such latex coatings, printing inks, textile coat...展開 Diisodecyl Phthalate (DIDP) is a general use high molecular weight Plasticizer. As a PVC plasticizer, DIDP is used in formualtions of screen printing inks. Additionally, DIDP can be used in applications such latex coatings, printing inks, textile coatings, paper coatings, and leather coatings, inks, adhesives, and sealants. 收起
Diisononyl Phthalate (DINP) Chemceed Diisononyl Phthalate (DINP) is a general use high molecular weight Plasticizer. As a PVC plasticizer, DINP is used in formualtions of screen printing inks. Additionally, DINP can be used in applications such as anti-corrosion paints, anti-fouling pain...展開 Diisononyl Phthalate (DINP) is a general use high molecular weight Plasticizer. As a PVC plasticizer, DINP is used in formualtions of screen printing inks. Additionally, DINP can be used in applications such as anti-corrosion paints, anti-fouling paints, lacquers, inks, adhesives, and sealants. 收起
Dimethyl Sebacate (DMS) Chemceed Dimethyl Sebacate (DMS) is a plasticizer for both nitrocellulose, rubber, vinyl resins. Dimethyl sebacate is used in the production of light stabilizers which are used in coatings to protect surfaces and pigments against photo degradation by deactivation ...展開 Dimethyl Sebacate (DMS) is a plasticizer for both nitrocellulose, rubber, vinyl resins. Dimethyl sebacate is used in the production of light stabilizers which are used in coatings to protect surfaces and pigments against photo degradation by deactivation of free radicals. Dimethyl sebacate can also be used as a solvent for resins and rubbers. In inks and coatings, DMS can soften binders to improve flexibility. 收起
Dioctyl Adipate (DOA) Chemceed Dioctyl adipate (DOA) is a PVC plasticizer that is also commonly used with primary plasticizers, like DOP, to create lubricant basetocks. Dioctyl adipate is also used in paints as a way to disperse pigments. For applications involving food, dioctyl adipat...展開 Dioctyl adipate (DOA) is a PVC plasticizer that is also commonly used with primary plasticizers, like DOP, to create lubricant basetocks. Dioctyl adipate is also used in paints as a way to disperse pigments. For applications involving food, dioctyl adipate can be used as a plasticizer in food contact polymers and rubbers. 收起
Dioctyl Phthalate (DOP) Chemceed Dioctyl Phthalate (DOP) is a general use Plasticizer. As a PVC plasticizer, DOP is used in formualtions of screen printing inks. Known for its good stability to heat and ultraviolet light, DOP can be used in applications such as paints, lacquers, inks, ad...展開 Dioctyl Phthalate (DOP) is a general use Plasticizer. As a PVC plasticizer, DOP is used in formualtions of screen printing inks. Known for its good stability to heat and ultraviolet light, DOP can be used in applications such as paints, lacquers, inks, adhesives, and sealants. 收起
Dioctyl Sebacate (DOS) Chemceed Dioctyl Sebacate (DOS) is a phthalate-free plasticizer used for PVC, nitrocelluloses, styrene resins, and synthetic rubbers where low temperature performance is required. It is soluble in hydrocarbons, alcohols, ester, chlorocarbons, ether, benzene and o...展開 Dioctyl Sebacate (DOS) is a phthalate-free plasticizer used for PVC, nitrocelluloses, styrene resins, and synthetic rubbers where low temperature performance is required. It is soluble in hydrocarbons, alcohols, ester, chlorocarbons, ether, benzene and other organic solvents. DOS is recommended for use in adhesives and sealants. 收起
Dioctyl Terephthalate (DOTP) Chemceed Dioctyl Terephthalate (DOTP) is a general purpose plasticizer, and can be used as a phthalate replacement. As a PVC plasticizer, DOTP is used in formualtions of screen printing inks. Additionally, DOTP can be used in applications such as paints, lacque...展開 Dioctyl Terephthalate (DOTP) is a general purpose plasticizer, and can be used as a phthalate replacement. As a PVC plasticizer, DOTP is used in formualtions of screen printing inks. Additionally, DOTP can be used in applications such as paints, lacquers, inks, adhesives, and sealants. 收起
Disodium Sebacate (DSS) Chemceed Disodium Sebacate is a castor oil derivative which can be used in cosmetics, detergents, and as a corrosion inhibitor lubricants.
Epoxidized Soybean Oil (ESO) Chemceed 環氧化大豆油,是一種增塑劑,通常用於PVC和涂料應用。ChemCeed以桶裝、手提袋裝和散裝供應。包裝需定制的請來電查問
EW-160 Oxidized Polyethylene Wax Changxing Xiehe Polymer Co., Ltd. EW-160 oxidized polyethylene wax is mainly used as a plastic processing lubricant and can completely replace most imported products. It can be applied to various types of processing PVC, in particular PVC calendering and extrusion process. As well as sign...展開 EW-160 oxidized polyethylene wax is mainly used as a plastic processing lubricant and can completely replace most imported products. It can be applied to various types of processing PVC, in particular PVC calendering and extrusion process. As well as significantly improving the lubrication properties of PVC, promote palatalization and improve overall production efficiency and the mechanical strength of the article. 收起
EW-180 Oxidized Polyethylene Wax Changxing Xiehe Polymer Co., Ltd. EW-180 oxidized polyethylene wax is mainly used as a plastic processing lubricant and can completely replace most imported products. It can be applied to various types of processing PVC, in particular PVC calendering and extrusion process. As well as sign...展開 EW-180 oxidized polyethylene wax is mainly used as a plastic processing lubricant and can completely replace most imported products. It can be applied to various types of processing PVC, in particular PVC calendering and extrusion process. As well as significantly improving the lubrication properties of PVC, promote palatalization and improve overall production efficiency and the mechanical strength of the article. 收起
Hydrogenated Castor Oil HCO Changxing Xiehe Polymer Co., Ltd. Hydrogenated castor oil (HCO) is made ​​from the hydrogenation process castor oil and can be used as a thickening thixotropic agent in the solvent-based coatings such as inks and adhesives systems. It can also be used in cosmetic, pharmaceutical and other...展開 Hydrogenated castor oil (HCO) is made ​​from the hydrogenation process castor oil and can be used as a thickening thixotropic agent in the solvent-based coatings such as inks and adhesives systems. It can also be used in cosmetic, pharmaceutical and other industries. 收起
L911P Plasticizer Chemceed Linear 911P is a plasticizer used when low-temperature flexibility is required or for specific end-use applications that require unique processing where the performance requirements cannot be met with branched plasticizers. 911P is especially useful in a...展開 Linear 911P is a plasticizer used when low-temperature flexibility is required or for specific end-use applications that require unique processing where the performance requirements cannot be met with branched plasticizers. 911P is especially useful in anti- fogging coatings, automotive sealants, and shoe polish. 收起
MAW-6600 Micronized Polyamine Wax Powder Changxing Xiehe Polymer Co., Ltd. MAW-6600 micronized polyamine wax powder is used in solvent-base coating, ink and adhesive. It could improve the scratch resistance of paints and used as coatings’ matting agent, sanding aid, additive for powder coatings, anti-blocking agent for printing ...展開 MAW-6600 micronized polyamine wax powder is used in solvent-base coating, ink and adhesive. It could improve the scratch resistance of paints and used as coatings’ matting agent, sanding aid, additive for powder coatings, anti-blocking agent for printing inks. 收起
MEW-3618 Micronized Polyethylene Wax Changxing Xiehe Polymer Co., Ltd. MEW-3618 Micronized Polyethylene Wax is a new kind of amide rheological additive that is used in non-aqueous system to prevent precipitation and flow. Primarily used as a rub resistance additive for printing inks. It can be used to modify surface properti...展開 MEW-3618 Micronized Polyethylene Wax is a new kind of amide rheological additive that is used in non-aqueous system to prevent precipitation and flow. Primarily used as a rub resistance additive for printing inks. It can be used to modify surface properties matting agent for paints & coatings. As well as a lubricant for plastics especially for high demanding pigment concentrates based on PE and PP (dispersing aid). 收起
MEW-3628 Micronized Polyethylene Wax Changxing Xiehe Polymer Co., Ltd. MEW-3628 Micronized Polyethylene Wax is a new kind of amide rheological additive that is used in non-aqueous system to prevent precipitation and flow. Primarily used as a rub resistance additive for printing inks. It can be used to modify surface propert...展開 MEW-3628 Micronized Polyethylene Wax is a new kind of amide rheological additive that is used in non-aqueous system to prevent precipitation and flow. Primarily used as a rub resistance additive for printing inks. It can be used to modify surface properties matting agent for paints & coatings. As well as a lubricant for plastics especially for high demanding pigment concentrates based on PE and PP (dispersing aid). 收起
Modified Hydrogenated Castor Oil Rheological Additive RC-HMT Changxing Xiehe Polymer Co., Ltd. RC-HMT is a 100% active rheological additive and is generally used for solvent based paints and coatings, adhesives, sealants and lubricant oils. It can provide excellent thickening, thixotropic and sag resistance. It is primarily used in the production o...展開 RC-HMT is a 100% active rheological additive and is generally used for solvent based paints and coatings, adhesives, sealants and lubricant oils. It can provide excellent thickening, thixotropic and sag resistance. It is primarily used in the production of industrial coatings, traffic paints, inks, powder paints, adhesive & sealants and lubricating oils. 收起
Modified Hydrogenated Castor Oil Rheological Additive RC-HST Changxing Xiehe Polymer Co., Ltd. RC-HST is a 100% active organic rheological additive and is made by a special process modification of solvent-based coatings. It is primarily used in the production of inks and adhesives and can effectively provide thixotropy and sag as well as resistance...展開 RC-HST is a 100% active organic rheological additive and is made by a special process modification of solvent-based coatings. It is primarily used in the production of inks and adhesives and can effectively provide thixotropy and sag as well as resistance and prevention of sedimentation. 收起
RC-100 Polyamide Micro-Powder Changxing Xiehe Polymer Co., Ltd. RC-100 Polyamide Micro-Powder is a special polyamide wax. The product can be dispersed in the solvent and pre-activated to wax paste. It can be used as rheological additives in solvent based system. RC-100 has some advantages in viscosity control, thixotr...展開 RC-100 Polyamide Micro-Powder is a special polyamide wax. The product can be dispersed in the solvent and pre-activated to wax paste. It can be used as rheological additives in solvent based system. RC-100 has some advantages in viscosity control, thixotropic, sag control and pigment suspension. 收起
RC-200 Micronized Polyamide Wax Changxing Xiehe Polymer Co., Ltd. RC-200 Micronized Polyamide Wax is a special amide wax. The product could be used as rheological additives in solvent based system and non-solvent system. It could provide excellent thixotropic, thickening and anti-sagging functions for coatings, inks, ad...展開 RC-200 Micronized Polyamide Wax is a special amide wax. The product could be used as rheological additives in solvent based system and non-solvent system. It could provide excellent thixotropic, thickening and anti-sagging functions for coatings, inks, adhesives, sealants and lubricating etc. RC-200 has some advantages in viscosity control, thixotropic, sag control and pigment suspension. 收起
RC-750 Anti-Settling Agent Changxing Xiehe Polymer Co., Ltd. RC-750 anti-settling agent is used in solvent coatings as an auxiliary to anti settling and sagging. It is particularly useful in high solid content coating system. RC-750 can be used in most non-aqueous coatings e.g. air-dried alkyd, alkyd-melamine, acry...展開 RC-750 anti-settling agent is used in solvent coatings as an auxiliary to anti settling and sagging. It is particularly useful in high solid content coating system. RC-750 can be used in most non-aqueous coatings e.g. air-dried alkyd, alkyd-melamine, acrylic, nitrocellulose, chlorinated rubber and epoxy coatings. It is suitable also for wash primer and high solid paints. According to experience, RC-750 cannot be applied to systems containing zinc-powder. 收起
RC-760 Anti-Settling Agent Changxing Xiehe Polymer Co., Ltd. RC-760 anti-settling agent is used in solvent coatings as an auxiliary to anti settling and sagging. It is particularly useful in high solid content coating system. RC-760 can be used in most non-aqueous coatings e.g. air-dried alkyd, alkyd-melamine, acry...展開 RC-760 anti-settling agent is used in solvent coatings as an auxiliary to anti settling and sagging. It is particularly useful in high solid content coating system. RC-760 can be used in most non-aqueous coatings e.g. air-dried alkyd, alkyd-melamine, acrylic, nitrocellulose, chlorinated rubber and epoxy coatings. It is suitable also for wash primer and high solid paints. 收起
RC-800 Micronized Polyamide Wax Changxing Xiehe Polymer Co., Ltd. RC-800 Micronized Polyamide Wax is a special amide wax. The product could be used as rheological additives in solvent based system and non-solvent system. It could provide excellent thixotropic, thickening and anti-sagging functions for coatings, inks, ad...展開 RC-800 Micronized Polyamide Wax is a special amide wax. The product could be used as rheological additives in solvent based system and non-solvent system. It could provide excellent thixotropic, thickening and anti-sagging functions for coatings, inks, adhesives, sealants and lubricating etc. RC-800 is recommended for solvent based heavy duty paints, specifically Epoxy primers, Chlorinated rubber primers and Alkyds primers. 收起
RC-820 Polyamide Wax Paste Changxing Xiehe Polymer Co., Ltd. RC-820 Polyamide Wax Paste is a special polyamide wax paste that is pre-activated in organic solvents. The product provides excellent thixotropic, anti-settling and anti-sagging functions; also enhance flake orientation of metallic and pearlescent pigmen...展開 RC-820 Polyamide Wax Paste is a special polyamide wax paste that is pre-activated in organic solvents. The product provides excellent thixotropic, anti-settling and anti-sagging functions; also enhance flake orientation of metallic and pearlescent pigments in formulation. It is primarily used in acrylic resin paints, unsaturated polyester paints, chlorinated rubber paints, epoxy resin paints, vinyl resin paints, asphalt & tar coatings, acrylic/melamines and urethane resin paints. 收起
RC-920 Polyamide Wax Paste Changxing Xiehe Polymer Co., Ltd. RC-920 Polyamide Wax Paste is a special polyamide wax paste that is pre-activated in organic solvents. The product provides excellent thixotropic, anti-settling and anti-sagging functions; also enhance flake orientation of metallic and pearlescent pigment...展開 RC-920 Polyamide Wax Paste is a special polyamide wax paste that is pre-activated in organic solvents. The product provides excellent thixotropic, anti-settling and anti-sagging functions; also enhance flake orientation of metallic and pearlescent pigments in formulation. It is primarily used in acrylic resin paints, unsaturated polyester paints, chlorinated rubber paints, epoxy resin paints, vinyl resin paints, asphalt & tar coatings, acrylic/melamines and urethane resin paints. 收起
Spolostan 3G Enaspol AS Spolostan 3G is a sodium salt dispersing agent that is a yellow-brown dust free powder in appearance with a low-molecular condensate that prevents the creation of dye agglomerates and enhances dye penetration, uniform dyeing and color fastness. This produ...展開 Spolostan 3G is a sodium salt dispersing agent that is a yellow-brown dust free powder in appearance with a low-molecular condensate that prevents the creation of dye agglomerates and enhances dye penetration, uniform dyeing and color fastness. This product is commonly applied in dyes, pigments, paints, and coatings. It is also an efficient dispersing agent in the grinding of pigments and printing inks. 收起
Spolostan 3L Enaspol AS Spolostan 3L is a sodium salt dispersing agent that is a dark brown liquid in appearance with a low-molecular condensate that prevents the creation of dye agglomerates and enhances dye penetration, uniform dyeing and color fastness. This product is common...展開 Spolostan 3L is a sodium salt dispersing agent that is a dark brown liquid in appearance with a low-molecular condensate that prevents the creation of dye agglomerates and enhances dye penetration, uniform dyeing and color fastness. This product is commonly applied in dyes, pigments, paints, and coatings. It is also an efficient dispersing agent in the grinding of pigments and printing inks. 收起
Tetrahydrofuran Chemceed Tetrahydrofuran (THF) is a versatile, highly polar solvent that is used in the manufacturer of adhesives, cellophane, elastomers, inks, pharmaceuticals, polyurethane coatings, PVC cement, and vinyl films. THF is used as a precursor to many polymers or che...展開 Tetrahydrofuran (THF) is a versatile, highly polar solvent that is used in the manufacturer of adhesives, cellophane, elastomers, inks, pharmaceuticals, polyurethane coatings, PVC cement, and vinyl films. THF is used as a precursor to many polymers or chemical syntheses. 收起
Tiona® 113 Cristal Global Tiona® 113, in the form of a white powder, is a heavily treated chloride-process rutile titanium dioxide pigment. It is specifically designed to give good film integrity and excellent hiding power in flat emulsion paints formulated above critical PVC. Ti...展開 Tiona® 113, in the form of a white powder, is a heavily treated chloride-process rutile titanium dioxide pigment. It is specifically designed to give good film integrity and excellent hiding power in flat emulsion paints formulated above critical PVC. Tiona® 113 also provides good stability and easy incorporation in the finished paint as well as high dry-hide opacity. It has recommended applications in matt exterior emulsion paints, ceiling paints, interior textured emulsion paints, matt inks, and more. 收起
Tiona® 121 Cristal Global Tiona® 121, in the form of a white powder, is an alumina/silica modified chloride-process rutile titanium dioxide pigment. It offers a blend of good optical performance with a high level of durability and ease of dispersion, making it suitable for use in ...展開 Tiona® 121, in the form of a white powder, is an alumina/silica modified chloride-process rutile titanium dioxide pigment. It offers a blend of good optical performance with a high level of durability and ease of dispersion, making it suitable for use in a wide range of exterior and interior coatings. Tiona® 121 has recommended applications in powder, solvent-based, water-based, architectural, marine, general industrial, and protective coatings. 收起
Titanium Dioxide (TiO2) - Rutile Chemceed Titanium Dioxide is a white pigment used to provide whiteness and opacity to products such as paints, coatings, plastics, papers, and inks.
Tolyltriazole Chemceed Tolyltriazole is a corrosion inhibitor for copper and copper alloys, and is commonly used in water cooling systems. Additional applications include use in metalworking fluids, lubricants, runway deicer, and brake fluid.
Trioctyl Trimellitate (TOTM) Chemceed Trioctyl Trimellitate (TOTM) is a non-phthlate plasticizer that is useful in adhesives and epoxies. It is compatible with chlorinated rubber, epichlorohydrin, hydrogenated nitrile, hydrogenated rubber, polychloroprene and polyvinyl chloride.