Bostik Fill-A-Gap is a general purpose, applicator applied one-part water based, paintable acrylic gap filler. This easy to use, economical sealant provides excellent adhesion for gaps and cracks and other low movement joints.

  • Excellent sealing and adhesion properties
  • Skins within 15 minutes
  • After 2 hours can be painted over with acrylic paint
  • High bond strength
  • Once cured has excellent water conditions when painted
  • Slump resistant


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