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🔧 Seal smart, seal strong—your concrete’s best defense!
Quikrete 8660-30 Polyurethane Self Leveling Sealant is a professional-grade, waterproof sealant designed for concrete and wood surfaces. Its advanced polyurethane formula offers superior adhesion, flexibility, and durability, making it ideal for sealing expansion joints and cracks in floors, driveways, patios, and more. Certified to ASTM C920 standards, it self-levels for easy application and withstands harsh temperature fluctuations, ensuring a long-lasting, resilient seal.
| ASIN | B000KKMX00 |
| Best Sellers Rank | #249,110 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #238 in Industrial Joint Sealants |
| Brand | Quikrete |
| Brand Name | Quikrete |
| Color | Gray |
| Compatible Material | Concrete, Wood |
| Customer Reviews | 4.1 out of 5 stars 46 Reviews |
| Item Dimensions | 8 x 5.75 x 17 inches |
| Item Form | Fl |
| Item Weight | 1.8 pounds |
| Item dimensions L x W x H | 8 x 5.75 x 17 inches |
| Manufacturer | Quikrete Company |
| Material | Polyurethane |
| Material Type | Polyurethane |
| Model | 8660-30 |
| Number of Items | 1 |
| Part Number | 8660-30 |
| Style | Compact |
| Style Name | Compact |
| Supported Standards | ASTM C-920 |
| Surface Recommendation | Floor |
| UPC | 039645866030 |
| Unit Count | 1160 Ounce |
| Water Resistance Level | Waterproof |
J**N
Really great product.
We have old stone slabs on our front steps and walkway, and the concrete between them is destroyed. I replaced with concrete filler, but the salt on the walk in the winter destroys that concrete, so I decided to get a few small tubes of this stuff from Ace and try it out. This stuff is going strong for 2 years, so I found this big tube of it to work on the steps. It looks great and stands the test of time. Gotta pick up a few more.
R**N
Joint caulk
Works really great for the cracks and joints in my driveway.
D**W
Four Stars
Satisfied customer
K**R
A driveway saver for sure.
We have tried several different types of sealers for the cracks in our driveway. This one has worked the best first used it three years ago and it is still holding up. Just finished sealing several long and wide cracks again. Love the self leveling since I am not the steadiest at applying it. We live in Rockies and it gets cold and hot in the same day. The caulk seems to expand and contract and still maintain the seal.
K**J
Three Stars
Ended up returning most of this item. Color didn't work for my project.
M**A
Extremely strong
I used this on the concrete around the pool on all of the concrete joints that had cracked. This stuff is great and easy to use. Flows very easily (not like regular caulk) once cured, turns into a rubbery extremely strong material. Do not over fill, you want this product in the joint filling cracks but not above the joint itself.
N**A
Not pleased
Did not set as I had intended. might be because of the angle of my driveway, but i felt that it could have been thicker.
J**O
Damaged
Tube appeared to be normal, but edge opened up when pressure was applied, causing it to burst, sending contents all over the concrete driveway. Packing was inadequate and lacked proper cushioning for shipment.
Trustpilot
5 days ago
1 month ago