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Fast Plug Fast Setting 4 -lb Mortar Concrete Hydraulic cement

Ratings & Reviews for DRYLOK Fast Plug Fast Setting 4 -lb Mortar Concrete Hydraulic cement

4.5
180
Review
 4.5 out of 5
181 Reviews


90% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The Drylok Fast Plug product is generally effective at sealing cracks, holes, and leaks in concrete and masonry surfaces. Many users found it easy to use and that it worked well to stop water seepage. However, some noted it can be tricky to get the right consistency, though with practice it becomes easier to use. The product dries and hardens very quickly, so it's important to work in small batches and apply it rapidly.

Customer review summary generated by AI, including incentivized reviews.
181 Customer Reviews

Very short working time before it sets.

Would Recommend

Sets very fast, very short working time. I didn’t realize how fast the product sets and wasted about half of the tub because it hardened before I could use it. And I’m talking only 5 minutes. Second attempt I kept stirring the product and adding water intermittently while working with it, and that went better. I used it to fill holes and large cracks in basement cinder block walls.

October 22, 2025
Verified Purchaser
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Read & follow the directions carefully.

Would Recommend

I like it very much... it fit my need perfectly.

October 14, 2025
Verified Purchaser
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Worth it.

Would Recommend

Worked!

September 14, 2025
Verified Purchaser
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again sets up tooo fast

Works well, but biggest problem, it sets up tooo fast, SO YOU HAVE TO MAKE UP SMALLER BATCHES

June 22, 2025
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Waterproof patch for concrete

Would Recommend

Easy to use, dries fast

June 14, 2025
Verified Purchaser
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It's not an easy thing to do

Would Not Recommend

Couldn't get it to work right?It was garbage

May 14, 2025
Verified Purchaser
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Drylok birdbath repair

Would Recommend

Used this to fix the inside and outside of a birdbath. It worked perfect.

May 14, 2025
Verified Purchaser
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Works well

Would Recommend

Worked great stoped the water from seeping through a joint in my basement.

April 16, 2025
Verified Purchaser
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Don't buy

Would Not Recommend

Doesn't hold

March 29, 2025
From Fast Plug Fast Setting 4 Pound(s) Stucco Mortar Concrete Patch Verified Purchaser
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I used it around a PVC pipe through a cellar wall

Would Recommend

It set up quickly and was a waterproof plug

November 12, 2024
From Fast Plug Fast Setting 4 Pound(s) Stucco Mortar Concrete Patch Verified Purchaser
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Didnt use yet.

Would Recommend

Bought to have on hand. Used drylok before and it worked well.

November 9, 2024
From Fast Plug Fast Setting 4 Pound(s) Stucco Mortar Concrete Patch Verified Purchaser
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Great product

Works as described

September 20, 2024
From Fast Plug Fast Setting 4 Pound(s) Stucco Mortar Concrete Patch Verified Purchaser
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