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💪 Seal it once, seal it right — the ultimate waterproof shield for your windows and doors!
POLYGUARD WindowSeal is a 4-inch by 100-foot roll of 20 mil thick, self-adhering flashing tape designed to create a durable, waterproof barrier around windows and doors. Engineered with a rubberized asphalt core and polyethylene backing, it performs reliably in temperatures from 40°F to 120°F, resists tearing, and seals tightly around nails and fasteners. AAMA 711 compliant and made in the USA, it’s the professional’s choice for weatherproofing and long-lasting protection.
| ASIN | B0BH58K76P |
| Brand Name | POLYGUARD |
| Color | White |
| Compatible Material | Wood |
| Customer Reviews | 4.3 4.3 out of 5 stars (199) |
| Included Components | 1-Polyguard WindowSeal 4" x 100' Flashing Tape |
| Item Dimensions L x W x Thickness | 4"W |
| Item Thickness | 2E+1 Mils |
| Lower Temperature Rating | 40 Degrees Fahrenheit |
| Manufacturer | POLYGUARD |
| Material Type | Polyethylene |
| Number of Items | 1 |
| Other Special Features of the Product | Waterproof |
| Recommended Uses For Product | Indoor, Outdoor |
| Size Name | 4" x 100' |
| Surface Recommendation | Wood, Vinyl, Metal |
| UPC | 655691510019 |
| Unit Count | 100.0 Feet |
| Upper Temperature Rating | 120 Degrees Fahrenheit |
| Water Resistance Level | Waterproof |
J**I
Highly recommend!
Polyguard Poly Wall WindowSeal Flashing Tape is an absolute must-have for any construction or renovation project! The 6" x 100' roll provides ample coverage, and the 20mil thickness feels incredibly robust and durable. It's truly waterproof, self-adhering, and self-sealing, making installation a breeze and giving me complete confidence in its protection for window and door frames. This tape is top-notch for ensuring a tight, waterproof seal!
C**.
Very well made and sticky
This is for a retro window install of 5 replacement windows on a seasonal property that is sheathed with Plywood and T1-11 type siding. will be installed in Spring of 25026
J**Y
Polyguard window/door seal
Liked the product when it was cool out, but the slightest time in the sun and it gets very hard to work with. Has a tendency the roll over on itself even though only short lengths of backing removed at a time. Possibly due to the fact that the cut edge on one side of the roll kept sticking while trying to unwind it.
P**M
window seal tape
good tape for flashing windows
E**R
Good
Works good needs to be warm to work tho
R**N
Great flashing tape
Perfect for what I wanted, sealant tape over window nail on flashing.
K**R
Bad product
Not very sticky had to use staples to hold up
A**.
perfect for windows
I needed window seal for new window replacement. Window flashing tape is so expensive so this offered me a great alternative that is just as high in quality but for a more affordable price. Definitely worth the purchase as it holds well and looks great.
Trustpilot
1 week ago
2 months ago