THERMO-SIL SP-11 (Silicone Epoxy Primer)

Thermo-Sil SP-11 is a black, single-component epoxy primer incorporating state-of-the-art water-based technology to produce an extremely versatile product that penetrates and seals porous substrates. It is effective at increasing the bond of silicone topcoats to a variety of surfaces and will also help to “solidify” punky or chalky surfaces.

SP-11 is safe to use, has very little odor and is easy to clean. It is designed to penetrate and seal porous substrates to improve the adhesion of Huntsman Building Solutions' Thermo-Sil series of silicone coatings. It develops a tenacious bond to concrete, wood, fiberglass, steel, galvanized and aluminum surfaces.

Product Benefits

  • Adhesion - penetrates and “wets” into porous surfaces, imparting a tenacious chemical and physical bond between the substrate and topcoat
  • Easy cleanup and minimum maintenance
  • Deep penetrating to preserve dense surfaces
  • Anti-spalling - protects against the intrusion of destructive salts, oils, solvents and gasoline

Product Data

Other ROOFING COATINGS Products

  • THERMO-SIL SP-14 (Silicone 2-Part Epoxy Primer)

    Thermo-Sil SP-14, as provided, is a two-component, 1 to 4 ratio, water-based epoxy primer designed to go onto multiple substrates.

  • THERMO-SIL SP-15 (Single-Ply Primer)

    Thermo-Sil SP-15 has been formulated with specialty polymers to maximize adhesion to PVC and TPO membranes and to resist the migration of plasticizers from the PVC membrane.

  • THERMO-SIL Flashing Grade Silicone Sealant

    Thermo-Sil Flashing Grade Silicone Sealant is a thick, high-build liquid that is a dispersion of 100% silicone rubber. It is designed to seal abnormal roof penetrations that cannot be covered with standard sprayers or rollers. It features low odor, ease of application, fast moisture cure, and superior adhesion to a variety of substrates.

    • Low odor
    • Easy to apply
    • Fast moisture cure

  • THERMO-CAULK (Acrylic Caulk)

    Thermo-Caulk is designed from 100% acrylic resins. It is a single component, water-based, high-performance elastomeric sealant. It is a knife-grade caulking that when cured forms a tough, flexible membrane that seals out moisture.

    • Waterproof
    • Easy to apply
    • Tenacious adhesion

  • THERMO-PRIME (Acrylic Primer)

    Thermo-Prime™ acrylic roof primer is a single component, water-soluble acrylic primer that promotes adhesion of spray-in-place polyurethane foam to a variety of roofing substrates including BUR, modified bitumen, concrete, masonry, galvanized metal and wood.