Foster 42-42 Mold Resistant Sealer | GLT Products

Foster 42-42 Mold Resistant Sealer

Foster® 42-42™ Mold Resistant Sealer is an easy-to-use, specially formulated, low viscosity sealer designed to provide water resistance to building materials and a coating that is resistant to mold growth. The product contains water resistant polymers to mitigate water penetration and fungistatic agents that provide long-term resistance to the growth of mold or mildew on its surface.


  • Designed specifically for easy application on construction sites.
  • Used on building materials to forma water-resistant coating that resists mold growth on its surface.
  • Formulated for use both during construction phase and after the walls of the structure have been enclosed.
  • Protects trusses, studs, wallboard, plywood, sheathing and other framing construction materials from excess water penetration.
  • Formulated for use on surfaces such as wood, gypsum wallboard, plaster, cement blocks, and other construction materials.
  • Specially formulated with EPA registered fungistatic agents to provide long-term resistance to mold or mildew growth on its surface.
  • Dries fast with a low viscosity and high coverage rate.
  • Prepares the surface for painting with latex or oil based paints.
  • Minimizes water absorption into coated product without impeding water vapor transmission. 
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