A copolymer of isobutylene and isoprene with low gas permeability, resistance to ozone and sunlight aging and shock dampening properties. It is recommended for phosphate ester type hydraulic fluids (Skydrol, Fryquel, Pydraul), ketones (MEK, Acetone) and silicone fluids and gases. It is not recommended for petroleum oils and di-ester-based lubricants. Replaced in importance by ethylene propylene, Butyl is highly effective in vacuum sealing applications such as inner tubes and the inside layer of tubeless tires and hydraulic systems.
ASTM D1418 Designation: IIR
ASTM D2000/SAE J200 Type, Class: AA, BA
Standard Color: Black
Temperature Range: Standard Compound: -50° to +250°F
Hardness (Shore A): 40 to 80
02. 표준명Chloroprene (CR)
특징
A homopolymer of chloroprene (chlorobutadiene), an early oil-resistant substitute for natural rubber, Chloroprene features good resistance to petroleum oils, ozone, sunlight and oxygen aging, relatively low compression set, good resilience and outstanding physical toughness. Chloroprene is recommended for refrigerants (Freons, ammonia), high aniline point petroleum oils, mild acids and silicate ester lubricants. It is not recommended for phosphate ester fluids, chlorinated, aromatic and nitro hydrocarbons and ketones (MEK, acetone). Nitrile is economically competitive with Chloroprene and, due to superior performance characteristics, has generally replaced it in O-ring applications. Typical uses include transportation, refrigeration and food and beverage industry applications.
ASTM D1418 Designation: CR
ASTM D2000/SAE J200 Type, Class: BC, BE
Standard Color: Black
Temperature Range: Standard Compound: -45° to +250°F
Hardness (Shore A): 40 to 90
03. 표준명Epichloro Hydrin (ECO)
특징
A homopolymer (CO), copolymer (ECO), or terpolymer (GECO) with good oil resistance and low temperature properties. Epichlorohydrin is recommended for hydrocarbon oils and fuels and not recommended for ketones, esters, aldehydes, chlorinated or nitro hydrocarbons and brake fluids. Typical uses include fuel and air conditioning system components, petroleum applications where higher temperature capability than NBR is required and applications requiring low solvent and gas permeability or excellent resistance to ozone and weathering.
ASTM D1418 Designation: CO, ECO
ASTM D2000/SAE J2000 TYPE, CLASS: CH
Standard Color: Black
Temperature Range: Standard Compound: -40° to 275°F. (Dry Heat Only)
Hardness (Shore A): 50 to 90
04. 표준명Fluoro Carbon (FKM)
특징
Due to its wide range of chemical compatibility, high temperature resistance, outstanding chemical resistance and low compression set, fluorocarbon, a copolymer of hexafluoropropylene and 1,1-difluoroethylene, is probably the most significant elastomer recently developed and approaches the ideal O-ring material. Fluorocarbon is recommended for petroleum oils, di-ester and silicate-ester based lubricants; silicone fluids and greases, halogenated hydrocarbons including carbon tetrachloride, tricrloroethylene, selected phosphate ester fluids and acids. With low gas permeability, it is well suited for hard vacuum applications. It is not recommended for ketones (MEK, acetone), Skydrol® fluids, nitro hydrocarbons, amines (UMDH), anhydrous ammonia, low molecular weight esters and ethers and hot hydrofluoric or chlorosulfonic acids. It is also not recommended for situations requiring good low temperature flexibility. Typical uses include aircraft engines, automotive fuel handling systems, high temperature/low compression set applications, wide chemical exposure situations and other mechanical uses.
ASTM D1418 Designation: FKM
ASTM D2000/SAE Type, Class: HK
Standard Color: Black
Temperature Range: Standard Compound: -15° to +400°F
Hardness (Shore A): 50 to 95
05. 표준명Fluoro Silicone (FVMQ)
특징
A polymer with good high/low temperature stability, and compression set and resilience properties. They are primarily recommended for petroleum oils and fuels. They are not recommended for brake fluids, phosphate esters, hydrazine, or ketones. In addition, due to limited strength, poor abrasion resistance and high friction characteristics, Fluorosilicone is not recommended in dynamic sealing applications. Fluorosilicone is used as static seals for aerospace fuel systems, auto fuel emission control systems and other sealing applications.
제조사
Trade Name(s): Silastic LS (Dow Corning Corporation); FSE (General Electric)
ASTM D1418 Designation: FVMQ
ASTM D2000/SAE J200 Type, Class: FK
Standard Color: Blue
Temperature Range: Standard Compound: -75° to +400°F
Hardness (Shore A): 50 to 80
06. 표준명Chloro Sulfonyl Polyechylene (CSM)
특징
A chlorosulfonated polyethylene featuring good chemical, heat, oil, flame, weather and abrasion resistance, color stability, low moisture absorption and good dielectric properties. Hypalon is recommended in applications requiring resistance to corrosive and oxidizing chemicals. They are not recommended for concentrated oxidizing acids, aldehydes, esters, ethers, ketones, chlorinated, aromatic and nitro hydrocarbons. In addition, Hypalon is known to have a poor compression set.
제조사
Trade Name(s): Hypalon (DuPont Dow Elastomers)
ASTM D1418 Designation: CSM
ASTM D2000/SAE J200 Type, Class: CE
Standard Color: Black
Temperature Range: Standard Compound: -50° to +275°F
Hardness (Shore A): 50 to 90
07. 표준명Natural Rubber (NR)
특징
(Natural Polyisoprene) - The vulcanized product of the juice of the Hevea tree (latex) features low compression set, high tensile strength, high resilience, high abrasion and high tear resistance properties, with a good friction surface and excellent adhesion to metals. It is recommended for organic acids and alcohols, aldehydes and automotive brake fluid. It is not recommended for petroleum products. Typical uses include brake systems, food and beverage seals and non-hydraulic sealing applications.
제조사
ASTM D1418 Designation: NR
ASTM D2000/SAE J200 Type, Class: AA
Standard Color: Black
Temperature Range: Standard Compound: -60° to +220°F
Hardness (Shore A): 40 to 90
08. 표준명Nitrile Butadiene Rubber (NBR)
특징
The seal industry's most commonly used elastomer, Nitrile, a copolymer of butadiene and acrylonitrile, features excellent chemical resistance, low compression set, high tensile strength, and high abrasion resistance. Nitrile is recommended for petroleum oils and fluids, cold water, silicone greases and oils, di-ester based lubricants and ethylene glycol based fluids (hydrolubes). It is not recommended for halogenated hydrocarbons (carbon tetrachloride, trichloroethylene), chlorinated hydrocarbons, nitro hydrocarbons (nitrobenzene, aniline), phosphate ester hydraulic fluids (Skydrol, Fryquel, Pydraul), ethers, esters, ketones (MEK, acetone), strong acids, ozone and brake fluid. Typical uses include oil resistant applications of all types, low temperature military applications, off-road equipment, and automotive, marine, and aircraft fuel systems.
ASTM D1418 Designation: NBR
ASTM D2000/SAE J200 Type, Class: BF, BG, BK, CH
Standard Color: Black
Temperature Range: Standard Compound: -40° to +250°F
Hardness (Shore A): 40 to 90
09. 표준명Nitrile Hydrogenated (HNBR)
특징
Hydrogenation of Nitrile improves the material's physical strength, chemical resistance, heat resistance, tensile strength, abrasion resistance, and oil additive resistance. HNBR is recommended for petroleum fluids, sour gasoline, water, silicone fluids, ethylene glycol, steam (to 347°F), ozone and weathering sensitive applications, amines and automotive freon (r134a). It is not recommended for phosphate ethers, esters, chlorinated hydrocarbons, ketones, brake fluid, strong acids, kerosene, and methanol/ethanol blends. Typical uses include oil resistant applications, anti-oxidants and anti-wear agents, oil well applications, automotive fuel handling systems, general industrial applications and high temperature belts.
ASTM D1418 Designation: HNBR
ASTM D2000/SAE J200 Type, Class: DH
Standard Color: Black
Temperature Range: Standard Compound: -30° to +330°F
Hardness (Shore A): 50 to 90
10. 표준명Perfluoro Elastomer (FFKM)
특징
Although Teflon® is the principal monomer, this family of elastomers provides excellent resistance to heat and most chemical reagents and solvents, without the creep or flow inherent in pure Teflon®. Perfluoroelastomers are recommended for almost all chemicals including polar solvents, organic solvents, inorganic and organic acids and bases, fuels, oils, lubricants, inorganic salts, aldehydes, metal halogen compounds, chlorine, aromatics, alcohols, steam and strong oxidizing agents. It is not recommended where exposure to molten or gaseous alkali metals, such as sodium or potassium is possible. And in elevated temperature applications, performance may be effected by exposure to some diamines, nitric acid and basic phenols. It is primarily used in the chemical, petroleum, semiconductor manufacturing and analytical and process instruments industries.
ASTM D1418 Designation: FFKM
ASTM D2000 Designation:
Standard Color: Black
Temperature Range: Standard Compound: -20° to +500° F
Hardness (Shore A): 60 to 90
11. 표준명Poly Acrylate (ACM)
특징
An ethyl acrylate copolymer featuring excellent resistance to petroleum fuels and oils, oxidation, ozone, and sunlight and cracking due to flex. Polyacrylate is recommended for hot oil, automatic transmission and Type A power steering fluids. It is not recommended for alcohol, glycols, alkalis, brake fluids, or chlorinated or aromatic hydrocarbons. Polyacrylate is typically used in automatic transmissions and power steering systems.
ASTM D1418 Designation: ACM
ASTM D2000/SAE J200 Type, Class: DH; DF
Standard Color: Black
Temperature Range: Standard Compound: 0° to +350°F
Hardness (Shore A): 40 to 90
12. 표준명Poly Sulfide (T)
특징
An early synthetic elastomer, Polysulfide offers solvent resistance, low temperature flexibility, flex crack resistance, oxygen and ozone resistance, and gas impermeability. However, its heat resistance, mechanical strength and compression set are not exceptional. Polysulfide is recommended for petroleum solvents, ketones, ethers and aromatic hydrocarbons. It is not recommended for mercaptans, esters, amines, chlorinated or nitro hydrocarbons. Typical uses include seals for paint and coatings and insecticide industries.
제조사
Trade Name: Thiokol - types A, B, FA, ST or Polysulfide Rubber (Thiokol Corp.)
ASTM D1418 Designation: T
ASTM D2000/SAE J200 Type, Class: AK, BK
Standard Color: Black
Temperature Range: Standard Compound: -50° to +225°F
Hardness (Shore A): 50 to 80
13. 표준명Polyurethane (PU)
특징
Polyurethane, in both cast and milled or machined seals, features superior abrasion resistance and tensile strength. In addition, cast polyurethane exhibits higher tensile strength, greater elongation, wider temperature range, and lower compression set characteristics than machined polyurethane. Cast polyurethane is recommended for mineral-based oils and petroleum products, aliphatic solvents, alcohols, ether, hydraulic fluids, weak acids and bases, and mixtures containing less than 80% aromatic constituents. It is not recommended for concentrated acids and bases, ketones, esters, very strong oxidizing agents, pure aromatic compounds, brake fluids and most hot water or steam applications. Millable Polyurethane is recommended for petroleum-based oils, hydrocarbon fuels, hydraulic fluids, ozone, sunlight aging sensitive applications. It is not recommended for concentrated acids, ketones, esters, chlorinated and nitro hydrocarbons, and hot water and steam. Typical uses include high hydraulic pressure, high-stress and high-wear applications, wheels, rolls, slurry parts, bumpers, couplers, and shock absorber and wiper seals for axially dynamic piston rods.
ASTM D1418 Designation: AU, EU
ASTM D2000/SAE J200 Type, Class: BG
Standard Color: Amber, Black
Temperature Range: Standard Compound: -60° to +225°F; -60° to +175° F (Continuous use)
Hardness (Shore A): 70 and 90 (Cast); 40 to 90 (Millable)
14. 표준명Silicone (VMQ)
특징
An elastomer made from silicon, oxygen, hydrogen and carbon, where methyl-vinyl-silicone (NMQ) is often the central component, featuring retention of flexibility, low compression set and a wide working temperature range. As a group, silicones tend to have poor tensile strength, tear resistance and abrasion resistance. Silicone is recommended for dry heat, high-aniline point oils and chlorinated di-phenyls. It is also known for high resistance to fungus and aging effects of sunlight and ozone and is non-toxic with neutral odor and taste. It is not recommended for most petroleum fluids, ketones (MEK, acetone), water, steam, gases and concentrated acids or dynamic sealing applications due to low strength and high coefficient of friction. Liquid Silicone Rubber (LSR) is used primarily in liquid injection molding (LIM) applications. Medical Grade Silicone, used in medical devices, meets FDA regulations, is resistant to yellowing and brittleness from gamma sterilization and sterilizable with EtO/steam. Silicone is also used in extreme temperature static seal applications.
ASTM D1418 Designation: MQ, PMQ, VMQ, PVMQ
ASTM D2000/SAE J200 Type, Class: FC, FE, GE
Standard Color: Red
Temperature Range: Standard Compound: -94° to +450°F
Hardness (Shore A): 25 to 80
15. 표준명Styrene Butadiene (SBR)
특징
Known as Buna S, or GR-S (Government Rubber-Styrene), this early elastomer, substituted for Natural Rubber during World War II, has more recently been replaced by better performing materials. Styrene Butadiene is recommended for automotive brake fluid, low molecular weight alcohols and water. It is not recommended for ozone, most hydrocarbons, strong acids, petroleum oils and sunlight sensitive applications. Styrene Butadiene is typically used in automotive brake systems.
제조사
Trade Name(s): Too many to list
ASTM D1418 Designation: SBR
ASTM D2000/SAE J200 Type, Class: AA, BA
Standard Color: Black
Temperature Range: Standard Compound: -50° to +212°F
Hardness (Shore A): 40 to 90
16. 표준명Poly Tetra Fluoro Ethylene (PTFE)
특징
A chemically inert polymer featuring chemical inertness, heat resistance, moisture resistance, weather and impact resistance, low friction, toughness and flexibility. Teflon is recommended for virtually all industrial chemicals, particularly acetone, MEK, and xylene. Teflon is marginally acceptable for O-rings due to a poor elastic memory at room temperatures or lower and poor tear resistance causing potential problems during installation and requires special care. It is typically used in a wide range of chemical exposure and temperature extremes and in static and slow intermittent dynamic applications. PTFE O-rings are cut, not compression-molded, and virtually any size of O-ring can be manufactured.
제조사
Trade Name(s): Teflon (DuPont Dow Elastomers)
ASTM D1418 Designation: FEP
ASTM D2000/SAE J200 Type, Class: No Designation
Standard Color: White
Temperature Range: Standard Compound: -300° to +450°F
Hardness (Shore A): 98
17. 표준명Thermo Plastic Elastomers (TPE)
특징
A hybrid with plastic- and elastomer-like properties, these copolymers set and cure with heat. By varying the plastic or elastomer content, a variety of characteristics can be obtained and therefore recommended uses vary with the compound. Thermoplastic elastomers are typically used in a wide range of applications including bumpers, bellows, vibration dampers, couplers, and grommets for the automotive, major and small appliances, and aerospace industries.
제조사
Trade Name(s): Santoprene and Geolas (Monsanto); Kraton (Shell); etc.
ASTM D1418 Designation: TPE
ASTM D2000/SAE J200 Type, Class: ????
Standard Color: Varied
Temperature Range: Standard Compound: -81°F to +275°F
Hardness (Shore A): 35 to 50 and higher
18. 표준명Ethylene Acrylic (AEM)
특징
A copolymer of ethylene and methyl acrylate plus a small amount of a third monomer featuring excellent vibration dampening and heat aging characteristics with moderate petroleum oil resistance and good dynamic property retention over a wide temperature range. It is recommended for water, glycols, dilute acids and alkalis and not recommended for concentrated acids, aromatic hydrocarbons, gasoline, ketones, brake fluids and phosphate esters. Typical uses include automatic transmissions & power steering systems.
제조사
Trade Name(s): Vamac (DuPont Dow Elastomers)
ASTM D1418 Designation: AEM
ASTM D2000/SAE J200 Type, Class: EE, EF, EG, EA
Standard Color: Black
Temperature Range: Standard Compound: -40° to +300°F
Hardness (Shore A): 50 to 90
Chemical Terms,Abbrevations and Trade Names of Elastomers Material
화학명
chemical Term
재질기호 Abbreviation
상품명
Polymer Trade Names
DIN/ISO 1629
ASTM D1418
Nitrile Butadiene Rubber
Acrylonitrile Butadiene
NBR
NBR
Chemigum, Hycar, Krynac, Paracil, NySyn,
Paracril, Perbunan, Nitrile, Buna N
Hydrogenated Nitrile
Highly Saturated Nitrile
-
HNBE
THerban, Tornac, Zetpol
Fluorinated Rubber
Fluorelastomer.Flourcarbon
FPM
FKM
Viton(DuPont), Fluorel, Dyneon.
Technoflon
Perfluorinated Elastomer
Perfluorelastomer
FFPM
FFKM
Kalrez.Perlast®.Aegis(ISC-FNGP). Perlast is a registered brand name of Precision Polymer Engineering
HOME > 제품용도 > 
