---
product_id: 22066001
title: "BT25XL Flashing Tape – Durable & Flexible Waterproof Window and Door Flashing Tape for House Wrap, Insulation, Construction Weatherproofing, Repair Applications – 4\" x 75' Roll"
brand: "protecto wrap"
price: "$104.15"
currency: USD
in_stock: true
reviews_count: 8
category: "Protecto Wrap"
url: https://www.desertcart.us/products/22066001-bt25xl-flashing-tape-durable-and-flexible-waterproof-window-and-door
store_origin: US
region: United States of America
---

# Waterproof & air/vapor resistant 975 PSI tensile strength 4" x 75' roll for versatile coverage BT25XL Flashing Tape – Durable & Flexible Waterproof Window and Door Flashing Tape for House Wrap, Insulation, Construction Weatherproofing, Repair Applications – 4" x 75' Roll

**Brand:** protecto wrap
**Price:** $104.15
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal Smart, Build Strong — Don’t Let Leaks Crash Your Project!

## Quick Answers

- **What is this?** BT25XL Flashing Tape – Durable & Flexible Waterproof Window and Door Flashing Tape for House Wrap, Insulation, Construction Weatherproofing, Repair Applications – 4" x 75' Roll by protecto wrap
- **How much does it cost?** $104.15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/22066001-bt25xl-flashing-tape-durable-and-flexible-waterproof-window-and-door)

## Best For

- protecto wrap enthusiasts

## Why This Product

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

## Key Features

- • **Unmatched Durability:** Rubberized asphalt adhesive ensures a rock-solid, waterproof seal that stands up to weather and wear.
- • **UV-Resistant Versatility:** 120-day UV resistance means it holds strong during construction delays or temporary exposure.
- • **Energy-Smart Compatibility:** Seamlessly integrates with house wrap systems to boost insulation and reduce energy loss.
- • **Effortless DIY Installation:** No primer needed on most surfaces—just peel, stick, and roll for a professional finish every time.
- • **Certified Waterproof Performance:** IAPMO ER362 certified to protect your projects from leaks and air infiltration with confidence.

## Overview

The BT25XL Flashing Tape by Protecto Wrap is a high-performance, self-adhering waterproof tape designed for sealing windows, doors, and construction joints. Measuring 4 inches by 75 feet with a robust 975 PSI tensile strength, it offers certified waterproof protection (IAPMO ER362) and excellent compatibility with house wrap systems. Its rubberized asphalt adhesive bonds securely without primer on most surfaces, simplifying installation for both pros and DIYers. With 120-day UV resistance and a temperature range from 45°F to 240°F, it’s engineered to withstand demanding weatherproofing and insulation applications.

## Description

Product description

Review: Fine product, even for unconventional applications. - This product sticks very well to concrete, unless the temperature is sub-freezing. While unconventional, I am using it along the inside of my crawl space and will attach the plastic sheeting to it - rather than running the plastic sheeting up to my sill plate. Using double-backed tape holds the plastic sheeting in place until I get everything in place and use pressure-treated wood slats to attach the plastic sheeting to the concrete - with this as a buffer. I will use butyl rubber sealant along the top to ensure moisture and insect control. I previously used this product on wood surrounding several windows, and found it very effective in that application as well.
Review: Generally we love this product - Generally we love this product. We have ordered it previously and used it with great success. This time however, now that we are beginning to us it, we have found that there is no sticky substance on the back so when we go to place it on the wood that we want to protect it just lays there and can easily be blown away by the wind. I don't want to pay to have to return this, nor do I want to have to drive into town to get it to a UPS office, but we won't be able to use the product. I could go into town and buy a spray adhesive to make the product work, but the point of buying it was that we were depending on this product to stick just like it has done in the past. I ordered it early so that it would be on hand when we got ready to do our project and now we can’t use it. We need it now. Very disappointing.

## Features

- Not_applicable
- STRONG SELF-ADHESIVE SEAL — BT25XL flashing tape provides a durable peel-and-stick solution for sealing windows, doors, and construction joints. The rubberized asphalt adhesive bonds securely to prepared surfaces, creating a waterproof barrier that protects against leaks and air infiltration.
- TESTED WATERPROOF PERFORMANCE — Engineered to withstand demanding environments, BT25XL is IAPMO ER362 certified and ideal for home projects, remodeling, or new builds. It helps ensure reliable waterproofing around vulnerable openings, sealing around nails and staples.
- COMPATIBLE WITH HOUSE WRAP SYSTEMS — BT25XL flashing tape is designed to seal seams, overlaps, and joints in house wrap systems, enhancing energy efficiency and weatherproofing. It provides a reliable barrier against water and air infiltration for improved insulation.
- EASY DIY APPLICATION — With no primer required on most surfaces, BT25XL is easy to install for homeowners and contractors alike. Apply above 40°F for best adhesion. Once pressed firmly or rolled into place, the self-adhesive backing bonds quickly, simplifying flashing, seaming, and repair projects.
- VERSATILE CONSTRUCTION USES — From sealing window and door installations to patching insulation and general waterproofing and weatherproofing, BT25XL offers a cost-effective solution for multiple projects. Its 120-day UV resistance allows temporary exposure before cladding or finishes are applied.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0149IG4F8 |
| Best Sellers Rank | #281,717 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #814 in Tape Measures |
| Brand | Protecto Wrap |
| Brand Name | Protecto Wrap |
| Color | White |
| Compatible Material | Wood |
| Configuration | configuration |
| Customer Reviews | 3.8 out of 5 stars 43 Reviews |
| Global Trade Identification Number | 00650745704758 |
| Included Components | Masking |
| Item Dimensions L x W x Thickness | 4"L x 4"W x 0.03"Th |
| Item Resistance | waterproof, air/vapor resistant |
| Item Thickness | 25 Mils |
| Item Type Name | masking-tape |
| Item Weight | 4.3 Pounds |
| Lower Temperature Rating | 45 Degrees Fahrenheit |
| Manufacturer | Protecto Wrap |
| Material | hdpe |
| Material Type | hdpe |
| Model | 8425B0475SW |
| Number of Items | 1 |
| Other Special Features of the Product | Self-Adhering |
| Part Number | 8425B0475SW |
| Recommended Uses For Product | ['Indoor', 'Outdoor'] |
| Size Name | 4 inches x 75 feet x 0.025 inches |
| Special Feature | Self-Adhering |
| Surface Recommendation | Plastic |
| Tensile Strength | 975 Pounds Per Square Inch |
| UPC | 650745704758 795871511273 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 240 Degrees Fahrenheit |
| Water Resistance Level | Waterproof |

## Images

![BT25XL Flashing Tape – Durable & Flexible Waterproof Window and Door Flashing Tape for House Wrap, Insulation, Construction Weatherproofing, Repair Applications – 4" x 75' Roll - Image 1](https://m.media-amazon.com/images/I/71yrV6vLgGL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fine product, even for unconventional applications.
*by J***D on January 13, 2016*

This product sticks very well to concrete, unless the temperature is sub-freezing. While unconventional, I am using it along the inside of my crawl space and will attach the plastic sheeting to it - rather than running the plastic sheeting up to my sill plate. Using double-backed tape holds the plastic sheeting in place until I get everything in place and use pressure-treated wood slats to attach the plastic sheeting to the concrete - with this as a buffer. I will use butyl rubber sealant along the top to ensure moisture and insect control. I previously used this product on wood surrounding several windows, and found it very effective in that application as well.

### ⭐ Generally we love this product
*by K***D on December 8, 2017*

Generally we love this product. We have ordered it previously and used it with great success. This time however, now that we are beginning to us it, we have found that there is no sticky substance on the back so when we go to place it on the wood that we want to protect it just lays there and can easily be blown away by the wind. I don't want to pay to have to return this, nor do I want to have to drive into town to get it to a UPS office, but we won't be able to use the product. I could go into town and buy a spray adhesive to make the product work, but the point of buying it was that we were depending on this product to stick just like it has done in the past. I ordered it early so that it would be on hand when we got ready to do our project and now we can’t use it. We need it now. Very disappointing.

### ⭐⭐⭐⭐ Doesn't stick great in cold weather (less than 50 degrees) but I ...
*by J***E on December 17, 2014*

Doesn't stick great in cold weather (less than 50 degrees) but I used a heat gun when finishing out to make it stick.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-22*