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BCI: Elastomer family table

Elastomers Advantages Contstraints Applications
Natural Rubber - NR Excellent deformation in compression, stretching, bending and torsion Little resistance to hydrocarbons and solvents Applications with dynamic loads in compression, torsion or elongation.
Excellent ability to re-form into shape quickly Low resistance to UV and ozone Suspension parts, impact or vibration damping
High resistance to cuts and abrasion Poor resistance to strong chemicals. High severity abrasion wear resistance parts
Retains elasticity at low temperatures Inflatable parts
SBR Good deformation properties Low resistance to hydrocarbons General use wear parts
styrene-butadiene Excellent abrasion resistance properties Moderate resistance to chemicals, alcohols, ketones Flexible seals
Good water resistance Low resistance to UV and ozone Protective caps
Good stiffness/rigidity
EPDM Good resistance to UV aging Low resistance to hydrocarbons and solvents Outdoor-use rooms exposed to the elements and the sun.
ethylene propylene diene monomer Resistant to atmospheric agents such as water and ozone Limited deformation capabilities Equipment exposed to ozone
High resistance to large temperature variations Ability to return to shape after deformation Auto parts and recreational vehicles
Excellent resistance to chemicals Parts for heating and ventilation systems
BR High resistance to barsion by friction Low resistance to hydrocarbons and solvents Tires
polybutadiene rubber Excellent as additiive element to other polymers Low resistance to ozone Abrasion resistant parts
Neoprene Good ozone resistance Little resistant to strong acids, oxidants, ketones, chlorides. General use wear parts
Moderate resistance to chemicals, hydrocarbons and solvents Gaskets
Flame retardation capabilities Dynamic applications
Good deformation in compression, stretching, bending and torsion Applications subject to oils and hydrocarbons
Good abrasion and tear resistance
Nitrile Excellent resistance to hydrocarbons, oils and petroleum Low resistance to ozone, ketones, aldehydes Parts exposed to hydrocarbons.
Good deformation in compression, stretching, bending and torsion Poor cut resistance Oil-resistant gaskets
Good abrasion resistance Poor electrical insulation
Silicone Good resistance and performance at high and low temperatures Not very resistant to cuts and extreme loads. Part for food, medical, pharmaceutical use.
Good physical properties Low resistance to solvents and oils Part requiring FDA approvals.
Can respect food, medical and pharmaceutic standards Low tear and cut resistance Electrical insulation parts
Good resistance to chemicals, UV and ozone
Can be easily colored or translucent.
High electrical resistance