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DISCOUNTS ON BULK QUANTITIES! FREE SHIPPING ON ORDERS $1,500+
DISCOUNTS ON BULK QUANTITIES! FREE SHIPPING ON ORDERS $1,500+

Sealants and Waterproofing

Achieving a watertight seal is essential in masonry applications, making it essential for contractors to invest in the right sealants and tools to get the job done. Masonry Direct is here to serve as your trusted online source for masonry supplies, tools, and expertise. Since 1888, our family-owned business has worked to provide the best sealants and flashing equipment needed for a quality finish. Need help? Contact us online for complete assistance!

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  • PROSOCO R-Guard FastFlash

    $296.05 - $571.14
    $296.05 - $571.14
    $296.05 - $571.14
    $296.05

    PROSOCO R-GUARD FASTFLASH Liquid flashing membrane designed for waterproofing, sealing, and protecting building envelopes in both new and existing ...

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    $296.05 - $571.14
    $296.05 - $571.14
    $296.05 - $571.14
    $296.05

  • PROSOCO R-Guard Joint & Seam Filler

    $479.82 - $501.14
    $479.82 - $501.14
    $479.82 - $501.14
    $479.82

    PROSOCO R-GUARD JOINT & SEAM FILLER Fiber-reinforced fill coat and seam treatment designed to create smooth transitions and provide flexible re...

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    $479.82 - $501.14
    $479.82 - $501.14
    $479.82 - $501.14
    $479.82

  • PROSOCO R-Guard AirDam

    $362.14 - $425.71
    $362.14 - $425.71
    $362.14 - $425.71
    $362.14

    PROSOCO R-GUARD AIRDAM Air and weather barrier sealant designed to create a long-lasting, weather-tight seal for windows and doors. FEATURES Prim...

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    $362.14 - $425.71
    $362.14 - $425.71
    $362.14 - $425.71
    $362.14

  • PROSOCO R-Guard Board Seam Filler WB (20 Sausages/Box)

    $254.28 - $254.28
    $254.28
    $254.28 - $254.28
    $254.28

    PROSOCO R-GUARD BOARD SEAM FILLER WBWATER-BASED BOARD SEAM TREATMENT R-Guard Board Seam Filler WB is a gun-grade, acrylic seam filler designed for ...

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    $254.28 - $254.28
    $254.28
    $254.28 - $254.28
    $254.28

  • PROSOCO R-Guard EMERGENCY WaterStop (12 Cartridges/Box)

    $324.85 - $324.85
    $324.85
    $324.85 - $324.85
    $324.85

    PROSOCO R-GUARD EMERGENCY WATERSTOPWATERPROOF SEALANT AND ADHESIVE FOR EMERGENCY REPAIRS Emergency WaterStop is a high-performance, waterproof seal...

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    $324.85 - $324.85
    $324.85
    $324.85 - $324.85
    $324.85

  • PROSOCO R-Guard PorousPrep (4 Pails/Box)

    $326.45 - $326.45
    $326.45
    $326.45 - $326.45
    $326.45

    PROSOCO R-GUARD POROUSPREPWATER-BASED SEALER FOR RAW GYPSUM BOARD EDGES PorousPrep is a water-based sealer designed to seal the dry, cut edges of g...

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    $326.45 - $326.45
    $326.45
    $326.45 - $326.45
    $326.45

  • PROSOCO R-Guard SureSpan Adhesive (Box of 20)

    $321.85 - $321.85
    $321.85
    $321.85 - $321.85
    $321.85

    USE TO ADHERE & SEAL SURESPAN EX R-Guard SureSpan Adhesive is a gun-grade adhesive that combines the best of silicone and polyurethane properti...

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    $321.85 - $321.85
    $321.85
    $321.85 - $321.85
    $321.85