Description
LANCO | Siliconizer Elastomeric Crack Filler Sealant 10-oz Tube (Ultra White)
Siliconizer Crack Filler Is a 100% elastomeric, styrene/acrylic, silicone modified white mastic for interior and exterior use. Will permanently seal leaks and bridge cracks on smooth surfaces. A flexible mastic that will adhere to any surface and fill cracks of any size. Will not crack, peel or crumble even after exposure to severe weather conditions.
Siliconizer Crack Filler™ is designed to seal all types of cracks and leaks on any smooth surface. Used on walls and roofs, around pipes and penetrations in a building, around flashing and broken tiles. Excellent for fixing expansion joints and contained wall joints, sealing plumbing or electrical intakes. To use on concrete, drywall, wood and metal.
- Seals cracks and leaks
- Spatula or knife grade
- For use with or without reinforcing fabric fiberglass
- UV and mildew resistant
- Can be painted
- Smooth finish
- Coverage: 1 tube covers 25ft at 1/4″ bead, 1 Gal. covers 994 sq. ft. at 1 mils 1 Gal. cover 50 sq. ft. (4.7 m) at 30 thick mils
- Drying time: 12-15 minutes to touch, 2-4 hours to recoat (79˚F (26˚C) and 85% RH)
- To seal cracks and leaks
- 100% elastomeric
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Siliconizer Crack Filler Is a 100% elastomeric, styrene/acrylic, silicone modified white mastic for interior and exterior use. Will permanently seal leaks and bridge cracks on smooth surfaces. A flexible mastic that will adhere to any surface and fill cracks of any size. Will not crack, peel or crumble even after exposure to severe weather conditions.

