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DOWSIL™ 888 Silicone Joint Sealant 20oz Sausage

$13.67

One-part, non-sag silicone material that cures to a low-modulus silicone rubber upon exposure to atmospheric moisture. Can be applied over a wide temperature range.

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Technical Data Sheet

One-part, non-sag silicone material that cures to a low-modulus silicone rubber upon exposure to atmospheric moisture. Can be applied over a wide temperature range.

Uses
  • New construction, repair or remedial applications
Benefits
  • Can be extruded from -20 to 120°F.
  • May be used in joints that are not uniform in width.
  • Movement capability 100% extension and 50% compression.
  • Low modulus.
  • Weather and UV resistant.
  • Fuel resistant-short term exposure. Refer to Dow form number 62-207 for more information.
  • One component, cold applied, ready-to-use as supplied; dispensed directly from the bulk container into the joint by hand or with an air-powered pump.
  • Unprimed adhesion – primer is not required for bonding to Portland cement concrete. For optimum adhesion, the surface must be clean, dry and frost-free.
  • Cure time – typically, the sealant will have a skin-over time of one hour or less at standard conditions.
Typical Properties
Adhesion to Concrete, Masonry
Appearance Opaque
Chemistry Neutral
Color Grey
Durometer - Shore A 15 Shore A
Elongation > 1000 %
Modulus @ 150% Elongation, maximum 28 psi
Movement Medium
Shelf Life 360 Days
Specific Gravity @ 25°C 1.48
Substrate Porous
Application Benefits
Application Temperature Range -29 to 49 °C
Primerless Adhesion Primerless
Resistance Type Fuel Resistance, Jet Fuel Resistance, Ozone Resistance, Thermal Resistance, UV Resistance, Water Resistance
Water Resistant true
Processing-Formulating Benefits
Cure System 1-Part Cure
Full Adhesion Time 14 to 21 Days
Number of Parts One
Room Temperature Cure - Days 7 to 14 Days
Tack-Free Time-50% RH 60 Minutes
Where Used Job Site

 

Additional information

Weight 2.5 lbs
Dimensions 1 × 1 × 1 in
Color

Grey