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NP1 POLYSEAL WHITE 10OZ

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$14.00

$ 6 .99 $6.99

In Stock


MasterSeal NP1 10.1 Oz. Polyurethane Sealant, White A versatile moisture-curing high-performance polyurethane sealant with permanent elasticity (Formerly: Sonolastic NP 1


Rick McGrew
Reviewed in the United States on March 17, 2025
Great items
rberg
Reviewed in the United States on February 13, 2025
Excellent at ceiling the seam and turn bars on my TPO roof
Bettina Rice
Reviewed in the United States on January 17, 2025
Well it seals but you will need a caulk gun that auto releases and gloves. It's very hard to get the product out and its messy. But it is flexible when dry and does the job. Hard to find white in my local stores.
Bradley
Reviewed in the United States on August 3, 2024
Used this sealant at work and was impressed. Don't let the price tag change ur decision. Will buy whenever needed
Joe
Reviewed in the United States on July 30, 2024
Sealant keeps water out of basement
Gregory Boop
Reviewed in the United States on October 25, 2024
This was my first time doing outside caulking. Prior to this I have done inside caulking with silicone caulks which are much easier to apply. This is a high quality product for the exterior of your home. However it is difficult to apply and tends to be messy for a beginner. Found that using a mix of butter and baking soda will get it off my hands after the project is completed.
Big Rudy
Reviewed in the United States on January 18, 2024
I used another solvent-based exterior caulking, but it dried so quickly that I didn't have time to tool it. This product is durable and doesn't skin over immediately so that if you make a caulking mistake, you can still recover from it. It is paintable but not washable with water. I use rubber gloves and a dry rag when installing it as it is gooey and sticks to everything! It's super strong and I use it on LP and Hardi siding, exterior doors and windows. Latex caulks last about a month outdoors (even though they are easy to tool). I quit using it years ago. I found this to be the best solvent based paintable caulk on the market these days. Use it!Big Rudy
Rich
Reviewed in the United States on November 19, 2023
Resealed a frame for shower doors. Although it takes a few days to completely cure, it is immediately waterproof water exposure doesn't degrade it at all.I have also used it to seal the leaking seams in stock tanks and have never had a failure.Far superior to all other products I have used.
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