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Your cart is empty.Blue Max® Trowel Grade Multi-purpose Waterproofer is a thick, blue, elastomeric, waterproofing rubber primarily used as a filler & sealer for joints, holes, valleys, cracks, around vents, low spots, flashings & seams up to 5/8" wide.
Steven V. Couch
Reviewed in the United States on February 24, 2025
Think product worked well for my basement walls
Rosilis Pelletier
Reviewed in the United States on January 29, 2025
Waterproof paint that is washable with water. Don't recommend. It dripped everywhere and didn't dry. Not sure if it was because it was exposed to freezing weather. Don't buy in the winter. Frozen paint doesn't work.
JD
Reviewed in the United States on September 26, 2024
Used this product on a flat plywood roof in the first step of waterproofing. Inititally, I applied the sealant with a trowel and pushed the product between the plywood seams. After drying, I could see that the sealant had pulled away from the edges in places. I knew I needed to try something different so I then bought a roll of universal patching fabric and applied that over a thin layer of the sealant and covered the top of the fabric with another layer of sealant. That worked much better than the sealant just by itself and all was good after drying. Not a fan of the color and wish it would come in white.
Carol Richter
Reviewed in the United States on April 11, 2024
easy to brush on and dries quicklygives additional strength to item applied to
J.C. Moore
Reviewed in the United States on September 23, 2023
Repaired a wall that had water damage. Did not trick!
James Edward Kleiner
Reviewed in the United States on July 22, 2020
it has sealed up cracks in my foundation so water doesn't come in anymore
Steve
Reviewed in the United States on October 6, 2018
I haven't used the trowel grade before and it is much easier to use when building up low spots.
profusiac
Reviewed in the United States on July 9, 2016
Thanks Amazon for selling scratch & dent paint supplies. Very minor marks to the outside of the can, while product inside was undisturbed, none missing, fresh, and ready to go. Got this for half-price. Product itself is a very good weatherproofing and waterproofing gel that dries to a translucent blue rubber. Needs to be top-coated if permanently exposed to daytime direct sunlight.
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