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🔧 Seal smart, stay flexible — the pro’s choice for lasting protection!
DAP 18810 is a premium polyurethane sealant designed for professional-grade exterior sealing. It offers superior adhesion, remains permanently flexible to accommodate up to 70% joint movement, and is waterproof for use above or below waterline. Certified to ASTM C920 standards, it resists cuts and tears, supports foot and vehicle traffic, and is paintable for a clean finish. Proudly made in the USA, it’s the go-to sealant for durable, long-lasting protection on doors, windows, siding, and more.




| ASIN | B0006B683Q |
| Brand | DAP |
| Brand Name | DAP |
| Colour | White |
| Compatible Material | Polyurethane |
| Country of Publication | USA |
| Customer Reviews | 4.2 out of 5 stars 97 Reviews |
| Global Trade Identification Number | 00070798188105 |
| Included Components | 1 Tube |
| Item Dimensions | 5.1 x 5.1 x 31.1 Centimeters |
| Item Form | Liquid |
| Item Type Name | Polyurethane Sealant |
| Item Weight | 454 g |
| Item dimensions L x W x H | 5.1 x 5.1 x 31.1 Centimeters |
| Manufacturer | DAP |
| Manufacturer Part Number | 7079818810 |
| Material | Fibreglass, Glass, Wood |
| Material Type | Fibreglass, Glass, Wood |
| Model | 7079818810 |
| Number of Items | 1 |
| Style | Compact |
| Style Name | Compact |
| Supported Standards | TT-S 00230C, ASTM C 920 |
| Surface Recommendation | Door, Fiberglass, Glass, Plastic, Window, Wood |
| UPC | 070798188105 |
| Unit Count | 10.1 Ounce |
| Water Resistance Level | Waterproof |
A**E
worked for leak
Needed to seal leak along base of garage wall, worked well and no longer get water. It bonded to both wood and concrete, and we have since had a big storm and no water came through. I was honestly not expecting it to work, so I was very pleased. Was very thick, and a bit hard to apply, but I also have weak hands so not going to be too hard on it. Stronger people probably have less issues. It worked, and that is more important. Was a bit expensive, but it went a long ways. I will see how it lasts over time to give it my full approval, but if it holds up for a reasonable amount of time, I would use again.
T**L
dried product
I couldn't use the product because it was dry. It has good quality but be sure seller doesn’t send you old product. Otherwise, like me, you will throw it away without using it.
M**R
منتج فاسد
وصلني المنتج فاسد السليكون متجمد تم اكتشاف ذالك بعد انتهاء فترة الإرجاع حين قمت بإستخدامه
D**O
product defective, it already was dry
product wa already dried up.
M**E
works fine
Caulk worked just fine
Trustpilot
1 month ago
2 days ago