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  • Clear-Seal™ 100% Urethane Heavy Duty Coating

    • Seals horizontal / vertical porous surfaces
    • Non-yellowing high/low gloss finish
    • Single component – no mixing required
    • Fast dry time & cure time
    CLEAR-SEAL™ 100% URETHANE 5 Yr Material Warranty

    Need a longer warranty? See Polyurethane HD.

    Select sizes & view technical information below

    Product Overview  |  Technical Data
    Coverage Rates  |  Application Guidelines

    Item #: CU-0308
    1 Gallon
    Ready to Use

    1 Gallon RTU/Low Gloss

    Item #: CU-0309
    5 Gallons
    Ready to Use

    5 Gallon RTU/Low Gloss

    Item #: CU-0302
    1 Gallon
    Ready to Use

    1 Gallon RTU/High Gloss

    Item #: CU-0303
    5 Gallons
    Ready to Use

    5 Gallon RTU/High Gloss

    Item #: CU-0310DR
    55 Gallons
    Ready to Use

    55 Gallons/High Gloss

    Clear Seal™ 100% Urethane Single-Part is a single-part urethane coating that creates a protective film for painted and unpainted surfaces. This product creates a hard glossy film that is more UV resistant, stain resistant, and hot tire resistant than that of Clear-Seal™ acrylic urethane. It also protects against physical abrasion and spills. For a faster cure time use the Clear-Seal™ 100% Urethane Two-Part Kit, which also increases physical and chemical resistance.

    View Technical Documents


    • Impact and wear resistant
    • Single component – no mixing required
    • Gloss finish will not yellow or cloud
    • Easy application – no mixing required
    • Resistant to acids, bases, gasoline, alcohol & oil
    • May be applied at 50°F-90°F

    Coverage Rates (Theoretical)

    Substrate Sq Ft / Gallon # of Coats*
    Porous Masonry 300-350 1-2
    Dense Masonry 400 1-2
    Painted Surfaces 300-350 1-2

    *Typically 1 coat for painted surfaces, 2 coats for uncoated surfaces. Please refer to the Technical Data Sheet below for full application guidelines. If you have further questions, please give us a call at (888) 765-7070 or email

    How to Use

    1) Prepare Surface

    To apply, surfaces must be clean, dry, and structurally sound. Surface moisture content must be less than 15% as measured with an electronic moisture meter. Do not apply if relative humidity is greater than 80%.

    2) Stir Product

    Stir well for 5-10 minutes.

    3) Apply Clear Seal™ 100%

    Pour into paint tray. Using 3/4 inch nap roller, apply even coat to horizontal or vertical surface. For best results, apply solution in cross-hatch pattern. WARNING: Make sure surface has been completely dry for at least 48 hours prior to application. Before applying additional coats, make sure that the surface is dry to the touch.


    Technical Documents



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