Typical Properties of Style 70 Durometer Commercial Grade Silicone

Description: 70 durometer commercial grade silicone, which is designed for use in gasket applications that do not require demanding physical properties, but where higher temperature resistance is required. 70 durometer commercial grade silicone has a service temperature of -80°F to +450°F, with the ability to handle +500°F on an intermittent basis. As a non-toxic and chemically inert material, 70 durometer commercial grade silicone offers excellent ozone and UV resistance.

M&P Sealing’s commercial grade silicone gasket material is available in a wide range of durometers, ranging from as soft as 30 Durometer to as hard as 80 Durometer with a range of durometers in between. 70 durometer commercial grade silicone can be supplied red or black in color with select thicknesses available in grey. 70 durometer commercial grade silicone and can be slit into rolls ranging from as narrow as 1/4″ wide, to a maximum width of 36″. M&P Sealing has the ability to supply 70 durometer commercial grade silicone without adhesive or with either our standard acrylic adhesive or our high-temperature acrylic adhesive. 70 durometer commercial grade silicone can be manufactured in thicknesses ranging from as thin as .016″ to as thick as 1”. M&P Sealing has the ability to fabricate 70 durometer silicone by die-cutting or waterjet cutting to meet your design and production requirements.

Physical Property Test Method Unit of Measure Typical Properties
DUROMETER ASTM D 2240 SHORE A 70 +/- 5
TENSILE STRENGTH ASTM D 412 psi 650
SPECIFIC GRAVITY ASTM D 297 G/CC 1.50
TEAR ASTM D 624 ppi
(Die B)
80
ELONGATION ASTM D 412 % 275
LOW-TEMPERATURE N/A °F
°C
-80°F
-62°C
HIGH-TEMPERATURE N/A °F
°C
450°F
232°C
HIGH INTERMITTENT TEMPERATURE N/A °F
°C
500°F
260°C
This information is furnished as a guide for selecting materials. M&P Sealing Inc. disclaims liability for results or use of this information. It is the customer’s responsibility to obtain and test samples when determining the suitability of material for a particular application.

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