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Silicone Sealants

Dowsil 888

DOW 888 Silicone Joint Sealant is a 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.

Colour: Grey, 16 per Box

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.