---
product_id: 482619718
title: "POLYGUARD WindowSeal Window and Door Flashing Tape, 4 in x 100 ft Roll, 20 mil Thick, Self-Sealing & Self-Adhering Waterproof Barrier"
brand: "polyguard"
price: "€ 84.03"
currency: EUR
in_stock: true
reviews_count: 8
category: "Polyguard"
url: https://www.desertcart.gr/products/482619718-polyguard-windowseal-window-and-door-flashing-tape-4-in-x
store_origin: GR
region: Greece
---

# 20 mil waterproof thickness Works from 40°F to 120°F Self-adhering & nail-sealable POLYGUARD WindowSeal Window and Door Flashing Tape, 4 in x 100 ft Roll, 20 mil Thick, Self-Sealing & Self-Adhering Waterproof Barrier

**Brand:** polyguard
**Price:** € 84.03
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal the deal with POLYGUARD — where durability meets effortless protection!

## Quick Answers

- **What is this?** POLYGUARD WindowSeal Window and Door Flashing Tape, 4 in x 100 ft Roll, 20 mil Thick, Self-Sealing & Self-Adhering Waterproof Barrier by polyguard
- **How much does it cost?** € 84.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/482619718-polyguard-windowseal-window-and-door-flashing-tape-4-in-x)

## Best For

- polyguard enthusiasts

## Why This Product

- Trusted polyguard brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Adaptive Flexibility:** Conforms seamlessly to irregular shapes and porous surfaces, guaranteeing a perfect fit on every frame.
- • **Effortless Self-Sealing:** Self-adhering design plus nail sealability means faster, cleaner installs with no extra tools or mess.
- • **Bulletproof Waterproofing:** 20 mil thick rubberized asphalt core ensures an impenetrable moisture barrier for your windows and doors.
- • **Climate-Proof Performance:** Reliable adhesion and flexibility from chilly 40°F mornings to scorching 120°F afternoons—install with confidence year-round.
- • **Trusted Quality Assurance:** AAMA 711 compliant and proudly made in the USA—engineered for professionals who demand durability and peace of mind.

## Overview

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 and doors. It performs reliably in temperatures ranging from 40°F to 120°F, resists tearing and cracking, and seals tightly around nails and fasteners. Made in the USA and AAMA 711 compliant, it offers professional-grade protection and flexible installation on wood, vinyl, and metal surfaces.

## Description

POLYGUARD WindowSeal Window and Door Flashing Tape, 4 in x 100 ft Roll, 20 mil Thick, Self-Sealing & Self-Adhering Waterproof Barrier: desertcart.com: Tools & Home Improvement

Review: 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!
Review: window seal tape - good tape for flashing windows

## Features

- Waterproof Seal: Self-adhering design creates a watertight barrier for windows, doors, and seams
- Versatile Application: Ideal for flashing straight window frames, door frames, and construction seams
- Cold & Hot Climate Ready: Performs in temperatures from 40° F to 120° F; store in warm space before cold-weather installs
- Flexible Installation: Conforms to irregular shapes and uneven, porous substrates
- Nail Sealability: Forms a smooth, sealed surface around nails, staples, and fasteners
- Tear-Resistant Performance: Resists cracking and tearing from structural movement or extreme weather
- Verified Quality: AAMA 711 compliant; made in the USA for dependable building performance
- Rubberized Asphalt Construction: Features a self-adhering rubberized asphalt core with polyethylene backing for superior adhesion and durability

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BH58K76P |
| Brand | POLYGUARD |
| Color | White |
| Compatible Material | Wood |
| Date First Available | October 3, 2022 |
| Item Resistance | waterproof |
| Item Thickness | 2E+1 Mils |
| Item Weight | 3.39 pounds |
| Item model number | PW.WS.4.100 |
| Lower Temperature Rating | 40 Degrees Fahrenheit |
| Manufacturer | POLYGUARD |
| Material | Polyethylene |
| Number of Items | 1 |
| Product Dimensions | 4"W |
| Recommended Uses For Product | Indoor, Outdoor |
| Size | 4" x 100' |
| Special Feature | Waterproof |
| Surface Recommendation | Wood, Vinyl, Metal |
| UPC | 655691510019 |
| Unit Count | 100.0 Feet |
| Upper Temperature Rating | 120 Degrees Fahrenheit |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** POLYGUARD
- **Color:** White
- **Material:** Polyethylene
- **Number of Items:** 1
- **Recommended Uses For Product:** Indoor, Outdoor

## Images

![POLYGUARD WindowSeal Window and Door Flashing Tape, 4 in x 100 ft Roll, 20 mil Thick, Self-Sealing & Self-Adhering Waterproof Barrier - Image 1](https://m.media-amazon.com/images/I/41XWQPLYyfL.jpg)
![POLYGUARD WindowSeal Window and Door Flashing Tape, 4 in x 100 ft Roll, 20 mil Thick, Self-Sealing & Self-Adhering Waterproof Barrier - Image 2](https://m.media-amazon.com/images/I/51-gHZw3bCL.jpg)
![POLYGUARD WindowSeal Window and Door Flashing Tape, 4 in x 100 ft Roll, 20 mil Thick, Self-Sealing & Self-Adhering Waterproof Barrier - Image 3](https://m.media-amazon.com/images/I/5109rBhYL7L.jpg)
![POLYGUARD WindowSeal Window and Door Flashing Tape, 4 in x 100 ft Roll, 20 mil Thick, Self-Sealing & Self-Adhering Waterproof Barrier - Image 4](https://m.media-amazon.com/images/I/517iPc5JYML.jpg)
![POLYGUARD WindowSeal Window and Door Flashing Tape, 4 in x 100 ft Roll, 20 mil Thick, Self-Sealing & Self-Adhering Waterproof Barrier - Image 5](https://m.media-amazon.com/images/I/51dQ7+V2UeL.jpg)

## Available Options

This product comes in different **Size, Item Package Quantity** options.

## Questions & Answers

**Q: What is the primary purpose of this flashing tape?**
A: This flashing tape creates a watertight seal around windows, doors, & construction seams. It prevents water intrusion & protects against moisture buildup, ensuring durability and longevity in various construction & renovation projects.

**Q: How does the tape ensure a watertight seal?**
A: The tape features a rubberized asphalt coating laminated to a polyethylene film. Its self-adhering & self-sealing properties provide a smooth, waterproof barrier around nails, staples, and fasteners, effectively preventing leaks & moisture issues.

**Q: What temperature range is the tape suitable for?**
A: The tape is designed to perform optimally in temperatures ranging from 40°F to 120°F. It can be applied in cold conditions, down to 30°F, making it versatile for various climates & seasons.

**Q: Is the tape UV resistant?**
A: Yes, the tape is UV stable & can be exposed to sunlight for up to 30 days. However, to maintain its effectiveness, it should be covered or applied in areas with minimal UV exposure.

**Q: What surfaces can this tape be used on?**
A: This flashing tape adheres well to a variety of surfaces, including wood, vinyl, & metal. It is suitable for both indoor & outdoor applications, offering reliable protection across different materials.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Highly recommend!
*by J***I on July 29, 2025*

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!

### ⭐⭐⭐⭐⭐ window seal tape
*by P***M on December 22, 2025*

good tape for flashing windows

### ⭐⭐⭐⭐ Good for most seasons
*by J***Z on November 12, 2024*

Doesn't stick very good when cold, but it's a good product to use when warm

## Frequently Bought Together

- POLYGUARD WindowSeal Window Flashing Tape, 20mil Thick. Waterproof, Self Adhering & Self Sealing. for Window and Door Frames (4" x 100')
- Fulton Long Handle J Roller with Thick Rubber Roller 1-1/2” in Diameter by 2-7/8” Wide For Veneers Laminate Wall Coverings and Edge Banding for Maximum Pressure Adhesion
- ZIP System Huber Stretch Tape | Self-Adhesive Flexible Flashing for Doors-Windows (3" x 20')

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-20*