Rubber an overview of properties There are 2 types of rubber Natural and Synthetic. Natural rubber is an elastic hydrocarbon polymer known as an elastomer that was originally derived from latex which is a milky colloidal suspension, found in the sap of some plants. Polyisoprene is the chemical of the purified form of natural rubber which can also be produced synthetically. Both natural rubber and synthetic rubber are used extensively in many applications and products. Depending on the use for which the rubber is intended, will influence which rubber type is used . Therefore below we give a broad overview of the properties of a number of different types. This guide is only intended as a first step in selection – mainly to eliminate materials which are obviously unsuitable. Factors such as oxidation resistance and oil resistance and the properties of vulcanized rubber can be significantly influenced in the compounding. The base polymer, is mixed with fillers, anti-degradants, accelerators crosslinking agents and so on. To ensure that you have the correct compound for the intended job it is always advisable to test the compound to ensure it is fit for purpose. The latest ISO recommendations are used as the base for the abbreviations used. Depending on the final compound mix of any of the rubbers below the temperature ranges shown below will vary , and are given as a rough guide only. All the information given below is given in good faith, but Augesco International Ltd can accept no responsibility for the information. Full test should be made before any material is selected for use. NATURAL RUBBER , abbreviation NR It has a long fatigue life and high strength even without reinforcing fillers. This along with the outstanding strength of natural rubber has maintained its position as the preferred material in many engineering applications. It can be used to approximately 100C, other than for thin sections. It is able you retain its flexibility down to -60C if appropriately compounded . It has good creep and stress relaxation resistance . The main disadvantage is its poor oil resistance and its lack of resistance to oxygen and ozone, however these disadvantages may be overcome by chemical protection. Alternatively one of the following compounds maybe better suited NITRILE RUBBER, abbreviation NBR Nitrile rubber provides an economic material with a high resistance to aliphatic hydrocarbon oils and fuels. The higher the acrylonitrile (ACN) content, the higher the oil resistance but this reduces the low temperature flexibility. It has high resilience and high wear resistance but only moderate strength. It has limited weathering resistance, and poor aromatic oil resistance. The temperature ranges up to 100C, or with special compounding up to 120C and down to about -30C, but special grades can operate at lower temperatures. STYRENE BUTADIENE RUBBER, abbreviation SBR This a general purpose synthetic rubber. With suitable fillers it is a strong rubber although not approaching natural rubber. It has similar chemical and physical properties to natural rubber, with generally better abrasion resistance but poorer fatigue resistance POLYCHLOROPRENE, abbreviation CR Second only to natural rubber for its good balance of mechanical properties and fatigue resistance, it is however superior to Natural rubber for chemical oil and heat resistance. It has ozone resistance. It is unsuitable in contact with fuels however it is suitable for use with mineral oils and greases and dilute acids and alkalis. Generally it has a poorer set and creep than natural rubber. Without appropriate compounding it is less resistant than natural rubber to low temperature . ETHYLENE PROPYLENE RUBBER, abbreviation EPDM This material is widely used in sports surfaces and children playgrounds, due to the excellent resistance to atmospheric ageing, oxygen and ozone up to about 150C, up to 180C in steam for peroxide cures. With good resistance to most water-based chemicals and to vegetable-based hydraulic oils. But with poor resistance to mineral oils and di-ester based lubricants. Probably the most water resistant rubber available, and so used widely on flat roof installations. BUTYL RUBBER, abbreviation IIR Whilst not suitable for use in contact with mineral oils it is highly impermeable to gases, which makes it an idea material for the use in pneumatic inner tubes, and other high pressure applications. It has good ozone, weathering, heat, and chemical resistance. SILICONE (and FLUOROSILICONE) RUBBER, abbreviations are FMQ,PMQ,VMQ or MQ Whilst they do not have very good physical properties, the properties they do have are retained to high temperatures, typically the range is -60C to 200C and above. As such many are used in cookware . The FMQ range have better oil and water resistance than the others,due to their ability to be used in room temperature vulcanizing they are widely used in the building industry in sealants for joints. The above range is most generally used but other polymers are available for specific applications. The range of items which may be produced is extensive , apart from the full range of items shown under the menu on the left the following item can also be produced, Product List A. Sport / Leisure A01. Non-slip gloves 01. Moutain-climbing glove 02. Baseball glove 03. Bicycle glove 04. Football glove 05. Golf glove 06. Ski equipment 07. Water skiing equipment A02. Health training 01. Chest Expander 02. Treadmill band 03. Scrabble ball A03. Sport & Leisure 01. Kneel mat 02. Balance mat 03. Gymnastic mat 04. Packsack pad 05. Sports equipment mat 06. Sports stepping mat 07. Pilates mat 08. Support mat for warm-up. 09. Camping sleeping mat 10. Natural rubber cold-resistant insoles 11. Snow shoes insoles 12. Cold-resistant shoe tongue A04. Fitness 01. Spa pillow 02. Micro thin gymnastic clothes 03. Resilient sliming clothes A05. Yoga accessories 01. Recycled TPE yoga mat 02. Carpet yoga mat 03. Outdoor yoga mat 04. Travel yoga mat 05. Natural rubber yoga mat 06. Yoga mat of recycled material 07. Yoga band 08. Yoga brick with recycled material 09. Natural yoga bag 10. Folding handy yoga mat A06. Aquatic sport 01. Float tool 02. Life vest 03. Wearproof clothes 04. Wetsuit 05. Non-slip patch for skateboard 06. Non-slip pad for surfboard A07. Puzzle & Game 01. Go mat 02. Marjong mat 03. Chinese cheer mat 04. Picnic mat 05. Puzzle Mat 06. Paintball location mat 07. Paintball Direction guiding mat 08. Outdoor game mat 09. Playground assistant mat 10. Location mat for basketball 11. Location mat for parachute 12. Gaming mat 13. Infant play mat 14. Children puzzle game mat 15. Gaming guiding mat 16. Football mark mat 17. EVA toy ball A08. Athletics and others 01. Kung Fu mat ( Aikido ) 02. Wrestle mat 03. Tae Kwon do protector 04. Home base 05. Judo mat 06. Gymnastics protector 07. Gumnastics run-up mat 08. Spring bed mat 09. Sport crushproof mat 10. Natursl practicing tennis ball B. Bathing and clean industry B01. Handle 01. Knife Handle 02. Comb handle 03. Scissors handle 04. Clothes brush 05 Handle of toothbrush 06 Hanger 07. Jar opener 08. Cane non-slip band B02. Floor mat 01. Door mat 02. Lobby mat 03. Shoe mat 04. Indoor mat 05. Scrape mud mat 06. Balcony mat 07. Combo mat 08. Kitchen mat for standing 09. Kneel mat of clean 10. Bathroom mat 11. Mircothin Door mat B03. Table mat 01. Dining table mat 02. Cutting mat 03. Waterproof mat 04. Hot resistant mat 05. Protection mat B04. Load mat 01. Chopping mat 02. Stamp mat 03. Seal mat 04. Accounting mat 05. Non-slip mat B05. Cushion mat 01. Breathable mat 02. Adjustment cushion mat 03. Shock absorbed mat 04. Bicycle cushion 05. Medical cushion 06. 70° adjustment cushion 07. cushion of chair handle B06. Bedding sort 01. Enuresis mat 02. Memory foam pillow 03. Waist protector for sleeping B07. Other sorts 01. Suction cup mat 02. Decorative strap 03. Packsack base 04. Cap washer 05. Non-slip strip for staircase 06. Non-slip pad for cell phone 07. Inner layer of wallet 08. Enuresis mat 09. Stereo mat 10. Separate mat for agriculture C. Architecture / Hardware C01. Handlebar cover C02. Kneel mat for construction C03. DIY floor mat C04. Non-slip mat for tooling C05. Scution tooling for ceramics C06. Cutting mat for ceramics C07. Sandpaper rear base C08. The balance mat for crane C09. The mat for special cars C10. Sealable strap / Corner protection D. Automobile / Bicycle D01. Mudguard D02. Vehicle mat D03. Sealable strap for window D04. Box mat D05. Anti-tiredness mat D06. Sea belt pad D07. Saddle material D08. The cover of shift knob D09. Racing gloves D10. Auto non-slip mat D11. Motorcycle repair mat D12. Anti-scrape mat for auto D13. Auto repair mat D14. Sound absorbable mat D15. Patent integrated ventilative bike seat D16. Patent integrated ventilative bike handle D17. Bike Handle Grip D18. Bike Tire-repair patch D19. Bike brake lining D20. Bike indoor mat D21. Bike repairing mat E. Toy and giftware E01. Pen cover E02. Eraser E03. Non-slip patch E04. Reversible tape E05. Shock absorbable ball E06. EVA game puzzle mat E07. Mouse pad E08. Gaming pad E09. Stamp pad E10. Cutting pad E11. One piece puzzle E12. Cup pad E13. Game location mat E14. Eraser E15. Bathroom patch E16. Bathroom non-slip mat E17. Bathing protective pad for infant E18. Hair washing protecting pad E19. Beach Frisbee E20. Can cooler E21. Suitcase E22. EVA toy patch F. Medical industry F01. Knee pad F02. Shoulder pad F03. Waist protection belt F04. Energy stone series F05. Ached pad F06. Medical insoles F07. feet corn pad F08. TPE shoes for shock absorbable and anti fatigue F09. Inside shoe soles for old person F10. Shoe pad for Diabetes F11. Hospital shoes F12. Medical wrist band G. Shoes industry G01. Insole G02. Shoe base insole G03. Shoe middle layer G04. Shoes surface G05. One piece beach slipper G06. Cradle to cradle Recycle shoes G07. Injection shoes of environment protection G08. Injection recycle shoes G09. 95% recyclable shoes G10. Biodegradable sponge for Shoe tongue G11. Anti- hydrolysis shoe material G12. Inner garment for snow shoes G13. Inner shoe sole for snowshoes G14. Shoe material with sulfur G15. Shock absorbable shoe material G16. Oil-resistant shoe material G17. Non-slip patch for Lady's shoes G18. Organic Leather shoe material H. Information / Communication game H01. Handle protection pad H02. Handle protection pad H03. Game mouse pad H04. Wrist protect H05. Audio shock absorbable H06. DDR non-slip mat H07. Game crash bar H08. Wii gaming non-slip mat H10. Child gaming balance bag H11. Cell phone bag H12. Camera cushion bag H13. Camera cushion bag I. Computer Technology I01. Mouse pad I02. Wrist protector I03. PC gaming pad I04. A4 / B5 easy print Mouse pad I05. Recycled laptop bag I06. Microfiber cleaning mouse pad J. Optoelectronics and Electron industry J01. Non-slip mat of accurate grinding J02. Static-resistant and conductive material J03. TFT-LCD separate board K . Optoelectronics and Electron industry K01. Tooling mat K02. Cushion mat K03. Hot resistant mat K04. Non-slip mat K05. Shock- absorbable mat L. Machinery / Cybernation industry L01. Temperature keeping tube L02. Home appliances temperature-keeping material M. Clean and environment protection industry M01. Scratch mat M02. Natural rubber water sponge M03. Eco Leftovers net M04. Filter material for fish bowl M05. Natural rubber scouring sponge N. Pets and animal tooling N01. Saddle mat N02. Pet's mat N03. Horse's hoof mat N04. Transport mat N05. Sleeping mat N06. Separation mat O. Special and other materials O01. Bolt band O02. Oil seal O03. Conductive material O04. Bar mat O05. Conductive material O06. Bag material (ECO Bag, Waterproof bag) O07. Diving clothes O08. Life vest material ( NBR/PVC Replaced) O09. Stamp pad O10. Cutting pad O11. Flame Retardant membrane O12. 3 Dimension Puzzles O13. Piggy Bank O14. Bathroom board O15. Ventilative bike seat O16. Ventilative sport hand grip O17. Yoga brick by injection O18. Natural rubber shoes by injection O19. Secure Bathroom chair O20. EPDM shock absorbable and refractory material P. Organic Leather P01. Natural rubber Leather P02. NBR oil-resistant leather P03. EPT leather P04. Tennis Grip with Organic Leather P05. Badminton Grip with Organic Leather P06. Hockey Grip with Organic Leather P07. Ski pole grip with Organic Leather P08. Alpenstock Grip with Organic Leather P09. Baseball bat grip with Organic Leather P10. Billiard cue grip with Organic Leather P11. Tool handle grip with Organic Leather P12. Non-slip and cold-resistant grip with Organic Leather Q. Recycling case Q01. ECO-Recycle Yoga mats Q02. Eco, recycling jigsaw mats for Office/ Home Q03. 95%recycling slippers Q04. Base of mouse pad Q05 Middle shoe layer