Siliconized Acrylic Sealant – L510

Ultimate Crack-Free Siliconized Acrylic Sealant

Lighthouse Speedpaint* Sealant is the ultimate crack-free siliconized acrylic sealant.

The powerful no-crack formula resists paint-film cracking and spiderwebbing, and allows paint-over in as little as 30 minutes with high-quality acrylic paint.†† Provides exceptional adhesion and durability on a wide variety of substrates. Excellent for interior/exterior weatherproofing protection. Paintable. Vacuum processed to eliminate air pockets for easy application. Meets ASTM C-834, Type OP, Grade -18°C. Cured bead is mildew resistant. Can be used in joints up to 3/4 inch. Soap and water cleanup.


† When painted over with most premium acrylic latex semi-gloss and gloss paints, this sealant displayed no crazing or spiderwebbing.

†† Paint-over time dependent on humidity, temperature, substrate and paint quality.

  • No-Crack Formula
  • Exceptional Adhesion
  • Excellent Durability
  • Paintable
  • Meets ASTM C-834

Product Specifications

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