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DOWSIL™ Smoke Seal 800SL

A self-leveling, single component, fire-rated sealant for use without a primer on many common non-porous building substrates. This unique low modulus sealant possesses excellent fire sealing properties, adhesive strength, and high movement capabilities, making it ideal to perform as smoke seal to prevent spread of smoke between floors in case of fire.


These values are typical properties and are not intended for use in preparing specifications.

  • Density 1.3 grams per cc
  • Durometer - Shore A 19 Shore A
  • Elongation 400 %
  • Modulus @100% Elongation, maximum 52.2136 psi
  • Shelf Life 365 Days
  • Tensile Strength 174.045 psi
  • Viscosity 28000 mPa.s

No Safety Data Sheets are available online for this material
Please Contact Dow for additional information.

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DOWSIL™ Smoke Seal 800SL
No Technical Data Sheets are available for this product
Please Contact Dow for additional information.

DOWSIL™ Smoke Seal 800SL

No Regulatory Data Sheets are available for this product

DOWSIL™ Smoke Seal 800SL
Please Contact Dow for distribution options available for this product.