Common Names- Buna N, Nitrile, NBR
Trade Names-Oil Ace - Compound No. AX-41060
Mincar - Compound No. 4045
ASTM D-2000 Classification BF, BG, BK
Military (MIL STD 417)B
Chemical Definition Butadiene Acrylonitrile
GENERAL CHARACTERISTICS
Durometer Range (Shore A) 20-95
Tensile Range (P.S.I.) 200-3000
Elongation (Max. %) 600
Compression Set Good
Resilience - Rebound Good
Abrasion Resistance Excellent
Tear Resistance Good
Solvent Resistance Good to Excellent
Oil Resistance Good to Excellent
Low Temperature Usage (F°) +30° to -40°
High Temperature Usage (F°) to 250°
Aging Weather - Sunlight Poor
Adhesion to Metals Good to Excellent
COMMENT
Nitrile (Buna-N) is a general purpose oil resistant polymer which has good solvent, oil, water and hydraulic fluid restance, good compression set, abrasion resistance and tensile strength. Nitrile should not be used in highly polar solvents such as acetone, and MEK, ozone, chlorinated hydrocarbons and nitro hydrocarbo
Common Names - Neoprene
Trade Names Matchless - Compound No. AX-1060
Mirprene - Compound No. 1050
ASTM D-2000 Classification BC, BE
Military (MIL STD 417) SC
Chemical Definition Butadiene Acrylonitrile
GENERAL CHARACTERISTICS
Durometer Range (Shore A) 20-95
Tensile Range (P.S.I.) 500-3000
Elongation (Max. %) 600
Compression Set Good
Resilience - Rebound Excellent
Abrasion Resistance Excellent
Tear Resistance Good
Solvent Resistance Fair
Oil Resistance Fair
Low Temperature Usage (F°) +10° to -50°
High Temperature Usage (F°) to 250°
Aging Weather - Sunlight Good
Adhesion to Metals Good to Excellent
COMMENT
Neoprene is an all purpose polymer with many desirable characteristics. It has additional plus features: high resilience with low compression set: Flame resistant; compounds free of sulphur are easily made; and animal and vegetable oil resistant generally not affected by moderate chemicals, fats greases and many oils and solvents. Neoprene is generally attacked by strong oxidizing acids, esters, ketones, chlorinated aromatic and nitro hydrocarbo
Common Names - Natural Rubber
Trade Names- Mirco - Compound No. 7033
Qualatex - Compound No. AX-22011
Duro - Compound No. AX-16750
Amtex - Compound No. 15030
ASTM D-2000 Classification AA
Military (MIL STD 417) RN
Chemical Definition Polyisoprene
GENERAL CHARACTERISTICS
Durometer Range (Shore A) 20-100
Tensile Range (P.S.I.) 500-3500
Elongation (Max. %) 700
Compression Set Excellent
Resilience - Rebound Excellent
Abrasion Resistance Excellent
Tear Resistance Excellent
Solvent Resistance Poor
Oil Resistance Poor
Low Temperature Usage (F°) -20° to -60°
High Temperature Usage (F°) to 175°
Aging Weather - Sunlight Poor
Adhesion to Metals Excellent
COMMENT
Natural Rubber has many good characteristics. It has high resilience, good compression set, good roll building behavior, and molding properties; very good friction surface, but not a fine smooth surface when ground; high tear strength, low crack growth; usable for ketones and alcohol; and good low temperature properties. Natural Rubber is not recommended for oil and solvent resistance and ozone attacks
To top
Common Names- SBR. GRS
Trade Names-Ironsides - Compound No. AX-20065
ASTM D-2000 Classification AA. BA
Military (MIL STD 417) RS
Chemical Definition Styrene Butadiene
GENERAL CHARACTERISTICS
Durometer Range (Shore A) 30-100
Tensile Range (P.S.I.) 500-3000
Elongation (Max. %) 600
Compression Set Good
Resilience - Rebound Good
Abrasion Resistance Excellent
Tear Resistance Fair
Solvent Resistance Poor
Oil Resistance Poor
Low Temperature Usage (F°) 0° to -50°
High Temperature Usage (F°) to 255°
Aging Weather - Sunlight Poor
Adhesion to Metals Excellent
COMMENT
SBR is a low cost non-oil resistant material. It has good water resistance and resilience up to 70 durometer; compression set becomes poorer with higher durometer; generally satisfactory for most moderate chemicals and wet or dry organic acids. SBR is not recommended for ozone, strong acids, oils, greases, fats and most hydrocarbon
To top
Common Names- Polysulfide
Trade Names-Thiokol - Compound No. 23945
ASTM D-2000 Classification BK
Military (MIL STD 417) SA
Chemical Definition -Polysulfide
GENERAL CHARACTERISTICS
Durometer Range (Shore A) 40-80
Tensile Range (P.S.I.) 800-1200
Elongation (Max. %) 300
Compression Set Poor
Resilience - Rebound Fair
Abrasion Resistance Poor
Tear Resistance Poor
Solvent Resistance Excellent
Oil Resistance Excellent
Low Temperature Usage (F°) -65°
High Temperature Usage (F°) 160°
Aging Weather - Sunlight Good
Adhesion to Metals Poor
COMMENT
Polysulfide is generally resistant to most ozone, oils, solvents, aromatic hydrocarbons, esters, ketones and thinners. Polysulfide is not recommended for service where it is exposed to mercaptans, chlorinated hydrocarbons, nitro hydrocarbons, esters, amines and heterocycli
To top
Common Names- Silicone
Trade Names-Thermoflex - Compound No. 2850R
ASTM D-2000 Classification-FC, FE, GE
Military (MIL STD 417) TA
Chemical Definition-Polysiloxane
GENERAL CHARACTERISTICS
Durometer Range (Shore A) 30-90
Tensile Range (P.S.I.) 200-1500
Elongation (Max. %) 700
Compression Set Good
Resilience - Rebound Good
Abrasion Resistance Fair to Poor
Tear Resistance Poor
Solvent Resistance Poor
Oil Resistance Fair to Poor
Low Temperature Usage (F°) -60° to -150°
High Temperature Usage (F°) to 450°
Aging Weather - Sunlight Excellent
Adhesion to Metals Good
COMMENT
Silicone Rubber has a great many variations and can be compounded to meet any number of applications. Silicone can be compounded to have tensile in the area of 1500 PSI and tear up to 200 lbs. low compression set and geed resilience; moderate solvent resistance; excellent heat resistance; good release characteristics; extreme low temperature properties; and can be highly resistant to oxidation and ozone attack. Silicone is generally attacked by most concentrated solvents, oils, concentrated acids and dilute sodium hydroxi
To top
Common Names- Butyl
Trade Names-Butene - Compound No. AX-90560
ASTM D-2000 Classification-AA, BA
Military (MIL STD 417) RS
Chemical Definition-Isobutylene Isoprene
GENERAL CHARACTERISTICS
Durometer Range (Shore A) 40-90
Tensile Range (P.S.I.) 500-3000
Elongation (Max. %) 850
Compression Set Fair to Good
Resilience - Rebound Fair
Abrasion Resistance Fair
Tear Resistance Good
Solvent Resistance Poor
Oil Resistance Poor
Low Temperature Usage (F°) -10° to -60°
High Temperature Usage (F°) to 115°
Aging Weather - Sunlight Excellent
Adhesion to Metals Good
COMMENT
Butyl rubber is impermeable to most common gases and has good resistance to sunlight and ozone. Butyl is normally satisfactory when exposed to animal and vegetable oils and oxidizing chemicals. Butyl is not recommended for use with petroleum solvent, coal tar and aromatic hydrocarbon
To top
Common Names- EPR, EPT, EPDM
Trade Names Resist-0 (Nordel) - Compound No. AX-60660
ASTM D-2000 Classification-CA
Military (MIL STD 417) RS
Chemical Definition-Ethylene Propylene
GENERAL CHARACTERISTICS
Durometer Range (Shore A) 30-90
Tensile Range (P.S.I.) 500-2500
Elongation (Max. %) 600
Compression Set Good
Resilience - Rebound Good
Abrasion Resistance Good
Tear Resistance Fair
Solvent Resistance Poor
Oil Resistance Poor
Low Temperature Usage (F°) -20° to -60°
High Temperature Usage (F°) to 350°
Aging Weather - Sunlight Excellent
Adhesion to Metals Fair to Good
COMMENT
Ethylene Propylene is a polymer with outstanding properties. It has exceptionally good weather aging and ozone resistance; excellent water and chemical resistance; excellent resistance to gas permeability, and excellent resistance to aging due to exposure to steam; and heat resistance excellent up to 350° F. Ethylene Propylene is a polymer where oil and solvent resistance is poor, however, it is fairly good in ketones and alcohols. It is not recommended for food applications or exposure to aromatic hydrocarbo
To top
Common Names- Fluorosilicone
Trade Names-Fluorosilicone - Compound No. WK-8870
ASTM D-2000 Classification FK
Military MIL-R-25988, Amend.2
Chemical Definition-Fluorosilicone
GENERAL CHARACTERISTICS
Durometer Range (Shore A) 50-80
Tensile Range (P.S.I.) 500-800
Elongation (Max. %) 300
Compression Set Good
Resilience - Rebound Excellent
Abrasion Resistance Poor
Tear Resistance Poor
Solvent Resistance Fair
Oil Resistance Good
Low Temperature Usage (F°) -80°
High Temperature Usage (F°) 300°
Aging Weather - Sunlight Excellent
Adhesion to Metals Poor
COMMENT
fluorosilicone is considerably more expensive than silicone, however it is developed for special applications where general resistance to oxidizing chemicals, aromatic and chlorinated solvent bases is required. Fluorosilicone is not recommended and is generally attacked when exposed to brake fluids, hydrazine and ketones. Fluorosilicone should not be confused with silicone in regard to high heat resistan
To top
Common Names- Fluoro Elastomers
Trade Names-Viton Fluorel Vi-Chem - Compound No. EV-9970
ASTM D-2000 Classification..........HK
Military MIL-R-25897 and MIL-R-83248
Chemical Definition-Fluorinated hydrocarbon
GENERAL CHARACTERISTICS
Durometer Range (Shore A) 60-90
Tensile Range (P.S.I.) 500-2000
Elongation (Max. %) 300
Compression Set Good
Resilience - Rebound Fair
Abrasion Resistance Good
Tear Resistance Good
Solvent Resistance Excellent
Oil Resistance Excellent
Low Temperature Usage (F°) +10° to -10°
High Temperature Usage (F°) 400° to 600° depending on time & service conditions
Aging Weather - Sunlight Excellent
Adhesion to Metals Good
COMMENT
Fluoro Elastomers have heat resistance up to 600°, and resistance to a wide range of oils and solvents; especially all aliphatic, aromatic and halogenated hydrocarbons, acids, animal and vegetable oils. Vi-Chem is not recommended for ketones, low molecular weight esters and nitro containing compounds.
To top
Common Names- Hypalon
Trade Names -Chlorosol - Compound No. 19040
ASTM D-2000 Classification -CE
Military (MIL STD 417) SC
Chemical Definition -Chlorosulfonated/polyethylene
GENERAL CHARACTERISTICS
Durometer Range (Shore A) 45-100
Tensile Range (P.S.I.) 1000-3000
Elongation (Max. %) 500
Compression Set Fair
Resilience - Rebound Fair
Abrasion Resistance Excellent
Tear Resistance Good
Solvent Resistance Fair to Good
Oil Resistance Fair to Good
Low Temperature Usage (F°) -30° to -60°
High Temperature Usage (F°) to 225°
Aging Weather - Sunlight Excellent
Adhesion to Metals Excellent
COMMENT
Hypalon has very good resistance to oxidation and ozone, as well as good flame resistance; it is similar to neoprene except with improved acid resistance; abrasion resistance is excellent, about the equivalent of nitrile, low friction surface; and oil and solvent resistance about intermediate between neoprene and nitrile. Hypalon is not recommended for immersion in water, exposure to concentrated oxidizing acids, esters, ketones, chlorinated, aromatic and nitro hydrocarbo
To top
Common Names- Urethane, Polyurethane
Trade Names-Polycast - Compound No. UR-2970
ASTM D-2000 Classification BG
Military (MIL STD 417) SB
Chemical Definition -Polyester/Polyether Urethane
GENERAL CHARACTERISTICS
Durometer Range (Shore A) 35-100
Tensile Range (P.S.I.) 500-6000
Elongation (Max. %) 750
Compression Set Poor
Resilience - Rebound Good
Abrasion Resistance Excellent
Tear Resistance Excellent
Solvent Resistance Poor
Oil Resistance Good
Low Temperature Usage (F°) -10° to -30°
High Temperature Usage (F°) to 175°
Aging Weather - Sunlight Excellent
Adhesion to Metals Fair to Good
COMMENT
The Castable Types have excellent abrasion resistance; good compression set at high hardness levels; low friction surface; tensile strengths up to 6000 PSI. Good ozone resistance; good oil and solvent resistance; and poor heat and hot water resistance. The Millable Types of Polyurethanes are in wide use today. Through the us of reinforcing pigments and other chemicals, desirable characteristics can be obtained to fit a variety of applications; wear resistance is excellent and greatly superior to most other polymers; the surface si of low friction nature; oil resistance is good and equivalent to the better nitriles but is not recommended for use in water or heat above 175° F; plus good ozone resistance and low rebound characteristics. Urethane is not normally attacked by moderate chemicals and hydrocarbons. It isby concentrated acids, ketones, esters, chlorinated and nitro hydrocarb
To top
![GPI - www.sealing.com [logo]](fileadmin/templates/1/images/logo-on-white.jpg){kind=logo}