Typical Properties of 40 Durometer Commercial Grade Silicone

Description: 40 durometer commercial grade silicone, which is designed for use in gaskets applications that do not require demanding physical properties, but where higher temperature resistance is required. 40 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, 40 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 standard durometers in between. 40 durometer commercial grade silicone can be supplied in either red or black in color. Select thicknesses can be produced to grey in color. 40 durometer commercial grade silicone can be converted into rolls ranging from as narrow as 1/4″ wide, to a maximum width of 36″. M&P Sealing has the ability to supply 40 durometer commercial grade silicone without adhesive or choose an adhesive from our standard acrylic adhesive or our high-temperature acrylic adhesive. 40 durometer commercial grade silicone commercial grade silicone can be manufactured in thicknesses ranging from as thin as .016″ to as thick as 1″. Send in a drawing, and let Atlantic Gasket die-cut or waterjet cut 40 durometer commercial grade silicone to meet your exact requirements.

Physical Property Test Method Unit of Measure Typical Properties
DUROMETER ASTM D 2240 SHORE A 40 +/- 5
TENSILE STRENGTH ASTM D 412 psi 600
SPECIFIC GRAVITY ASTM D 297 G/CC 1.45
TEAR ASTM D 624 ppi
(Die B)
80
ELONGATION ASTM D 412 % 400
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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