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Liquid Silicone Rubber (LSR) for Gaskets

LIM1939-35A/B, LIM1939-60A/B

Product Description
LIM1939-35A/B and LIM1939-60A/B are two-component, platinum-catalyzed liquid silicone rubber, designed for injection molding of gaskets. These two series of gasket silicone provide high performance, long service life and many other advantages. They are manufactured in compliance with US CFR21. Part.177.2600, EN 14350.2 and EU RoHS standards.

1. Notable weather resistance
2. High tear strength
3. Excellent aging resistance
4. Superior yellowing resistance

The gasket material is mainly used to make silicone gaskets for industrial parts.

20kg/pail or 200kg/pail

Typical Properties
Physical properties Test method Unit LIM1939-35A/B LIM1939-60A/B
Appearance Transparent without impurities
Mixing ratio (A:B) 1:1 1:1
Viscosity DIN53019 mPa.s 1,600,000 900,000
SHORE hardness D2204 A 33 59
Tear strength D624B KN/m ≥30.0 ≥35.0
Tensile strength D412 MPa ≥9.0 ≥7.50
Elongation at break D412 % ≥800 ≥400
Tension set D412 DIE C % ≤8.0 ≤5.0
Linear shrinkage JISK 6301 % 2.0 2.0
Resilience % ≥50 > 60
TC90 sec 28s:165 ℃ 30s:165 ℃
sec 39s:145 ℃

1) Please store the liquid silicone rubber at room temperature in an indoor cool, dry and ventilated place without direct sunlight. Shelf life is 12 month.
2) Parameters in the table are only for reference use. Contact us for more details.

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