Rubber

Rubbers
Material	Full name of material	Minimum / maximum temperature operating range (°F/ °C)	Material characteristics and Application
CR	Chloroprene	-30 ℉ / 212 ℉ ( -34 ℃/ 100℃ )	Good physical and mechanical properties, oil resistance, heat resistance, fire resistance, sunlight resistance, ozone resistance, acid and alkali resistance, chemical reagents resistance. Disadvantage is cold resistance and poor storage stability. It has high tensile strength, elongation, reversible crystallinity and good adhesion. Resistance to aging and heat. Excellent oil and chemical resistance. The weather resistance and ozone aging resistance are second only to ethyl-propylene rubber and butyl rubber. Heat resistance and nitrile rubber equivalent, decomposition temperature of 230 ~ 260℃（446~500℉）, short-term resistance of 120 ~ 150℃（248~302℉）, 80 ~ 100℃（176~212℉） can be used for a long time, with a certain flame retardant. Oil resistance is second only to nitrile rubber. Good corrosion resistance to inorganic acid and alkali. Cold resistance slightly poor, poor electrical insulation.Can be used for transmission belt, transport belt, wire and cable, oil resistant rubber board, oil resistant rubber hose, sealing materials and other rubber products
EPDM	Ethylene-propylene	-40 ℉/ 300 ℉ ( -40℃ / 150 ℃)	It has excellent aging resistance, weather resistance, ozone resistance, sunlight resistance, heat resistance, water resistance, water vapor resistance, uv resistance, radiation resistance and other aging properties, can be widely used in automotive parts, building waterproof materials, wire and cable sheath, heat resistant hose, tape, automotive seals and other fields.
NBR	Nitrile-butadiene	-30 ℉/ 250 ℉ ( -35 ℃/ 120 ℃)	Nitrile butadiene rubber is mainly used to manufacture oil resistant rubber products. Acrylonitrile content (%) in nitrile butadiene rubber has 42 ~ 46, 36 ~ 41, 31 ~ 35, 25 ~ 30, 18 ~ 24 and other five kinds. The more acrylonitrile content, the better oil resistance, but the cold resistance decreased. It can be used in air at 120℃ or oil at 150℃ for a long time. In addition, it also has good water resistance, air tightness and excellent bonding properties. Widely used in the production of various oil resistant rubber products, a variety of oil resistant gaskets, gaskets, casing, flexible packaging, flexible hose, printing and dyeing rubber roller, cable rubber materials, etc., in the automobile, aviation, petroleum, photocopying and other industries have become an essential elastic material.
SBR	Styrene-butadiene	-20 ℉ / 212℉ ( -28℃ / 100 ℃)	Its physical mechanism performance, processing performance and performance close to the natural rubber, the use of some properties such as wear resistance, heat resistance, ageing resistance and curing rate is more excellent natural rubber, but with a variety of natural rubber and synthetic rubber and, widely used in tires, tape, rubber hose, wire and cable, medical instruments and various rubber products production and other fields, It is the largest general synthetic rubber variety and one of the earliest rubber varieties to achieve industrial production.
NR	Natural Rubber	-60 ℉ / 220 ℉ ( -50℃ / 104 ℃)	Physical properties of natural rubber. Natural rubber at room temperature has high elasticity, slightly plastic, has very good mechanical strength, small lag loss, low heat in multiple deformation, so its flexural resistance is also very good, and because of non-polar rubber, so good electrical insulation performance. It is widely used. For example, the daily use of rain shoes, warm water bags, elastic; Surgeon’s gloves, blood transfusion tubes used in the medical and health sector; All kinds of tires used in transportation; Conveyor belts, transport belts, acid and alkali resistant gloves for industrial use; Agricultural use of drainage and irrigation hose, ammonia bags; Sounding balloons for meteorological surveys; Sealing and shockproof equipment for scientific experiments
FKM	Fluororubber	-20℉ / 615 ℉ ( -28 ℃/ 330℃)	Because fluorine rubber has high temperature resistance, oil resistance, high vacuum resistance, acid and alkali resistance, resistance to a variety of chemicals, has been used in modern aviation, missiles, rockets, space travel, naval vessels, atomic energy and other cutting-edge technology and automotive, shipbuilding, chemistry, petroleum, telecommunications, instruments, machinery and other industrial fields.
HNBR	Hydrogenated nitrile rubber	-70 ℉ / 350 ℉ ( -56 ℃/ 176 ℃)	Hydrogenated NBR has good oil resistance (good resistance to fuel oil, lubricating oil and aromatic solvents); And because of its highly saturated structure, it has good heat resistance, excellent chemical corrosion resistance (good resistance to freon, acid and alkali), excellent ozone resistance, high compression resistance to permanent deformation; At the same time, hydrogenated NBR also has the characteristics of high strength, high tear performance and excellent wear resistance. Hydrogenated nitrile butadiene rubber is widely used in oil field and automobile industry. With the development of automobile and petroleum industry, rubber parts in addition to oil resistance, but also need to have good heat resistance, high temperature resistance, high pressure, oxygen resistance and other characteristics.
XNBR	Nipol Carboxylated Nitrile	-40 ℉ / 226 ℉ ( -40 ℃/ 107 ℃)	Carboxyl nitrile butadiene rubber can be used alone, can also be used with other elastomers, mainly used for rubber hose, tape seals, O-ring, rubber roller, rubber shoes and a variety of mold products, oil well special supplies, epoxy resin toughening and production of high-performance adhesive products of special materials.
PU	Polyurethane	-40 ℉ / 226 ℉ ( -4 ℃/ 248 ℃)	It’s mainly used in the gift industry and toys, craft gift industry, furniture decoration industry, character copy, building decoration industry, resin handicraft industry, unsaturated resin handicraft industry, candles process  plastic toy industry,   gift stationery industry, plaster craft gift industry, mold manufacturing, simulation of plant and animal sculptures, Buddha carving crafts and other industries of product replication and mold production, as well as as a variety of products of irregular patterns pad printing rubber head.
Silicone	Silicone	-80 ℉ / 420 ℉ ( -60 ℃/ 215 ℃)	Not only as aviation, cutting-edge technology, military technology departments of special materials, its application has been expanded to: construction, electronics and electrical, textile, automobile, machinery, leather paper, chemical and light industry, metal and paint, medicine and medical treatment, etc.
FDA Silicone	FDA Silicone	-80 ℉/ 420 ℉ ( -60 ℃/ 215 ℃)	FDA silicone is a kind of medical silicone.FDA is the abbreviation of the food and drug administration. Food,cosmetics, medical devices and other products that have passed FDA certification are globally recognized as effective and safe products for human body, and are the global high standard certification of product quality and effect. With the rapid development of food industry and medical industry,Food grade silicone is generally used in coffee pots, water heaters, toasters, disinfection cabinets, drinking fountains, kettles, irons, electric cookers, fried steel, fruit paste, gas appliances, silicone ice lattices, pacifiers and other products; In addition, food grade silicone is also required for food mold, chocolate mold, candy mold, cake mold, etc
LFGB Silicone	LFGB Silicone	-80℉ / 420 ℉ ( -60 ℃/ 215 ℃)	LFGB, also known as the law on the administration of food, tobacco products, cosmetics and other daily necessities,LFGB silicone is the most important basic legal document in German food hygiene management. The provisions of the food hygiene law have also been revised, mainly in line with European standards.is generally used in coffee pots, water heaters, toasters, disinfection cabinets, drinking fountains, kettles, irons, electric cookers, fried steel, fruit paste, gas appliances, silicone ice lattices, pacifiers and other products; In addition, food grade silicone is also required for food mold, chocolate mold, candy mold, cake mold, etc
Medical Silicone	Medical Silicone	-80 ℉ / 420 ℉ ( -60℃ / 215 ℃)	Medical silicone is a widely used biomaterial in cosmetic surgery. It has many forms, such as liquid silicone oil, gel like silica gel, foam silicone sponge and elastic solid silicone rubber. Solid silicone rubber is widely used. Silicone rubber has good biocompatibility, no irritation to human tissue, no toxicity, no allergic reaction and very little rejection reaction; With good physical and chemical properties, it can maintain its original elasticity and softness in the process of contact with body fluids and tissues, and will not be degraded. It is a fairly stable inert substance. It can withstand high temperature and can be disinfected. It is convenient to process and shape, easy to process and carve shapes, and convenient to use.
High strength Silicone	High strength Silicone	-80 ℉ / 420 ℉ ( -60℃ / 215 ℃)	Good elasticity, low compression deformation, good yellowing resistance, tear resistance and high temperature resistance; It can produce products with good stiffness, good recoverability and not easy to turn yellow. Applicable to: products within the sleeve, pressure cooker ring, silicone wire, etc
High temperature resistance Silicone	High temperature resistance Silicone	-80 ℉/ 600 ℉ ( -60 ℃/ 315 ℃)	High temperature resistant Silicone has excellent heat resistance, ozone resistance and chemical corrosion resistance. This product is for the bonding of electronic and electrical appliances, engineering industries, such as electric heating tubes, microwave ovens, electric irons, high-temperature ovens and other products, and the sealing of electronic and electrical products with high temperature requirements
LSR	Liquid Silicone	-80 ℉ / 420 ℉ ( -60℃ / 215 ℃)	Liquid silicone is relative to solid high-temperature vulcanized silicone rubber. It is a liquid rubber, which has the characteristics of good fluidity, fast vulcanization, more safety and environmental protection, and can fully meet the requirements of food grade. Liquid silicone has excellent tear resistance, resilience, yellowing resistance, thermal stability, heat resistance and aging resistance. It is mainly used for infant supplies, medical supplies and electronic products (buttons).
UL standard Silicone	UL standard Silicone	-80 ℉ / 420 ℉ ( -60 ℃ / 215 ℃)	UL standard Silicone is a low viscosity potting adhesive, low hardness, self-adhesive, good refractory material, excellent flame retardant performance, reaching FV-0 level (gb/t2408). It is mainly used in fixing and flame retardant sealing of electronic and electrical components, bonding and sealing of various fire doors and windows, flame retardant sealing of each layer of curtain wall engineering, etc.