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Plastics & Elastomers
The material selection platform
Plastics & Elastomers
by SpecialChem
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OM 1121

Technical Datasheet | Supplied by Ortofon
OM 1121 by Ortofon is a bromo isobutylene isoprene (60%) and ethylene propylene diene rubber (40%) (BIIR/EPDM) grade. Exhibits high impermeability to gases & liquids, excellent aging stability and good damping properties. Offers good heat resistance, good UV resistance, stability in low & high temperature and good electrical insulation. Also offers good wear resistance, good weather resistance, good ozone resistance, optimum resistance to hydrolysis (water & steam), optimum resistance to chemicals (acid & bases) and optimum resistance to mineral oil & gas. OM 1121 by Ortofon is recommended for dampers, tubes, membranes, antivibration mounting and medical applications.
Product Type
  • Butyl Rubber > Bromo Isobutylene Isoprene Rubbers [BIIR]
  • EP (Ethylene Propylene Rubber) > Ethylene Propylene Diene Rubbers [EPDM]
Product Status

OM 1121 Properties

Mechanical Properties

Value & Unit
Test Condition
Test Method
65 - 75 -
(Shore A)
ISO 7619-1
Tensile Strength
9.9 MPa
( )
ISO 37
Tensile Elongation
410 %
(at Break)
ISO 37
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