Silicone Foam Gasketing

Product description

DOW Silicones (formerly Dow Corning) delivers a wide variety of silicone-based polymers for diverse solutions in electric, electronic and energy application cases. DOWSIL™ and SILASTC™ silicone foams are used as compression gaskets to protect electronics against dust, moisture and splashed water. Silicone foams will be delivered as two-component materials in mixing ratios of 1:1. DOWSIL™ and SILASTIC™ addition-cure silicone foams are designed to be dispensed with a dynamic mixing system and cured directly on parts to form an integrated gasket.

Product Hardness [Sh00] Snap time [sec] Tack Free time [min] Density [kg/m³]
SILASTIC™ 8257 Silicone Foam 25 230 8 140 
DOWSIL™ 3-8209 Silicone Foam 45 220 7 250 
DOWSIL™ 3-8219 RF Silicone Foam 45 200 6 300 
DOWSIL™ 3-8259 RF Silicone Foam 50 200 7 330 



Country availability

Austria Bosnia and Herzegovina
Bulgaria Croatia
Czech Republic Estonia
Germany Hungary
Latvia Lithuania
Macedonia Montenegro
Norway Poland
Romania Serbia
Slovakia Slovenia
Switzerland Turkey
Roberto Calvi

Contact person

Roberto Calvi

email   phone

Further information


Electronics Portfolio
pdf (3.2 MB)


Silicone Sealants Foams Industrial Assembly
pdf (374.8 KB)