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🛡️ Seal smart, seal strong — don’t let cracks steal your curb appeal!
Quikrete 8660-30 Polyurethane Self Leveling Sealant is a gray, 29 oz professional-grade sealant designed for waterproofing and sealing expansion joints and cracks in concrete and wood surfaces. It features a fast-flowing, self-leveling polyurethane formula that meets ASTM C920 standards, delivering superior adhesion, flexibility, and durability for long-lasting protection on floors, patios, driveways, and pool decks.
| ASIN | B000KKMX00 |
| Best Sellers Rank | #296,716 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #256 in Industrial Joint Sealants |
| Brand | Quikrete |
| Brand Name | Quikrete |
| Color | Gray |
| Compatible Material | Concrete, Wood |
| Customer Reviews | 4.1 out of 5 stars 45 Reviews |
| Included Components | 1 |
| Item Dimensions | 8 x 5.75 x 17 inches |
| Item Form | Fl |
| Item Weight | 1.83 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 | 1.0 Count |
| Water Resistance Level | Waterproof |
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.
K**J
Three Stars
Ended up returning most of this item. Color didn't work for my project.
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.
J**M
Easy to apply
Worked exactly as needed, easy to use
E**G
High cost
The price shot up. Should be at least 50% less than current asking price.
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.
D**E
Concrete floor crack & seam sealant
If you have cracks and expansion seams on concrete floors, this self leveling polyurethane compound is great. Good adhesion and complete sealing. Be sure to use backer rod to fill most of the space on seams and large cracks. Backer rod means you use far less on this compound and also prevents three point adhesion in expansion seams.
P**N
Excellent product
Used this to fill the joints in our driveway that had been previously filled with wood strips. A lot of back breaking work to get the wood out but this selfleveling sealant is wonderful and a lot cheaper than the poly strips you can push in---and this will last longer as the strips are only guaranteed for 5 years.