









💪 Seal smart, build strong — don’t let leaks crash your project!
POLYGUARD WindowSeal is a 4-inch by 100-foot roll of 20 mil thick, self-adhering flashing tape designed to create a waterproof barrier around windows, doors, and construction seams. Engineered with a rubberized asphalt core and polyethylene backing, it offers superior adhesion, tear resistance, and nail sealability. Certified to AAMA 711 standards and made in the USA, it performs reliably in temperatures from 40°F to 120°F, ensuring durable protection in diverse climates.



| Brand | POLYGUARD |
| Color | White |
| Material | Polyethylene |
| Number of Items | 1 |
| Recommended Uses For Product | Indoor, Outdoor |
| Special Feature | Waterproof |
| Water Resistance Level | Waterproof |
| Size | 4" x 100' |
| Item Thickness | 2E+1 Mils |
| Lower Temperature Rating | 25 Degrees Fahrenheit |
| Compatible Material | Wood |
| Unit Count | 100.0 Feet |
| Manufacturer | POLYGUARD |
| UPC | 655691510019 |
| Part Number | PW.WS.4.100 |
| Item Weight | 3.39 pounds |
| Package Dimensions | 6.38 x 6.3 x 4.13 inches |
| Item model number | PW.WS.4.100 |
| Item Package Quantity | 1 |
| Special Features | Waterproof |
| Batteries Required? | No |
Trustpilot
2 months ago
5 days ago
1 month ago
2 months ago