Thoro Thoroseal Waterproof Coating Gray 50 lb.(T1018)

Item no: 18365 | 080492010183
420  Estimated 

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  • Sub Brand: Thoroseal
  • Product Type: Waterproof Coating
  • Color: Gray
  • Container Size: 50 lb.
  • Application Method: Brush
  • Indoor and Outdoor: Outdoor
  • Coverage Area: 450 sq. ft.
  • Base Material: Cement-Based
  • Finish: Gray
  • Waterproofs concrete and masonry inside and out
  • Easily applied
  • Locks deep into pores and voids, actually becomes part of the wall

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What people are saying

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by PowerReviews
Thoroseal® Waterproof Coating (08049201083)

(based on 2 reviews)

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Reviewed by 2 customers

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(3 of 5 customers found this review helpful)


Thoroseal Works

By Museum Waterproofer

from Washington DC

About Me Professional


  • Attractive Design
  • Dries Quickly
  • Easy To Clean
  • Easy to Install


    Best Uses

    • Outdoors

    Comments about Thoroseal® Waterproof Coating (08049201083):

    Excellent product to seal concrete block prior to installing waterproofing. Since concrete block will wick water we apply Thoroseal to the face upon which we will be installing waterproofing membranes. The Thoroseal prevents hydrostatic pressure from reaching the waterproofing membrane and causing it to delaminate. Since it is not flexible, and can't bridge cracks that may develop down the road we don't use it as a primary waterproofing. It does a great job of adding a layer of protection to our final waterproofing for very little cost.

    (7 of 7 customers found this review helpful)


    So far so good

    By Nelson

    from Claremont, CA

    About Me Avid Do-It-Yourselfer

    Verified Buyer


    • Dries Quickly
    • Easy to Install


      Best Uses

      • Outdoors

      Comments about Thoroseal® Waterproof Coating (08049201083):

      Used to apply a new waterproof sealant coating to a 60+-year-old fishpond. Material was easy to mix; applied easily with just an old paintbrush; dried overnight for a recoat; and seems to have sealed the old surface. Product was as described. No complaints. Time will tell how good the coating is and how long it will last. Other on-line reviews from a variety of users indicate that other, more expensive products don't work as well.

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