---
product_id: 537608120
title: "XFasten Butyl Tape Black, 1/2 in x 30 ft x 1/8 in – Easy-to-Work-with Automotive Butyl Sealant Tape, Mess-Free Rubber Caulk for RV, EPDM Putty for Window, Headlight, Roof, Windshield, and Car Doors"
brand: "xfasten"
price: "€ 19.85"
currency: EUR
in_stock: true
reviews_count: 13
category: "X Fasten"
url: https://www.desertcart.ie/products/537608120-xfasten-butyl-tape-black-1-2-in-x-30-ft
store_origin: IE
region: Ireland
---

# 100% Waterproof Seal Withstands up to 290°F Easy-to-Mold & Mess-Free XFasten Butyl Tape Black, 1/2 in x 30 ft x 1/8 in – Easy-to-Work-with Automotive Butyl Sealant Tape, Mess-Free Rubber Caulk for RV, EPDM Putty for Window, Headlight, Roof, Windshield, and Car Doors

**Brand:** xfasten
**Price:** € 19.85
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** XFasten Butyl Tape Black, 1/2 in x 30 ft x 1/8 in – Easy-to-Work-with Automotive Butyl Sealant Tape, Mess-Free Rubber Caulk for RV, EPDM Putty for Window, Headlight, Roof, Windshield, and Car Doors by xfasten
- **How much does it cost?** € 19.85 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/537608120-xfasten-butyl-tape-black-1-2-in-x-30-ft)

## Best For

- xfasten enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Application:** Molds seamlessly to irregular shapes and tight spaces without the mess—professional finish guaranteed every time.
- • **Clean Removal, No Residue:** Removes cleanly without sticky leftovers, so your projects stay pristine and hassle-free.
- • **Heat-Resistant Durability:** Engineered to endure extreme temperatures up to 290°F, ensuring long-lasting performance for up to 5 years.
- • **Gapless, Snag-Free Packaging:** Continuous, gapless tape in a durable box means smooth, snag-free installation—no skips, no runs.
- • **Airtight & Watertight Mastery:** Lock out leaks and moisture with a 100% waterproof butyl seal that stands up to the harshest elements.

## Overview

XFasten Butyl Tape Black is a premium, 1/2 inch by 30 feet automotive-grade sealant tape designed for airtight, waterproof sealing on RVs, windows, headlights, roofs, and more. It withstands temperatures up to 290°F, offers a mess-free, easy-to-mold application, and removes cleanly without residue. Perfect for professionals and DIYers seeking durable, gapless protection against weather and wear.

## Description

desertcart.com: XFasten Butyl Tape Black, 1/2 in x 30 ft x 1/8 in – Easy-to-Work-with Automotive Butyl Sealant Tape, Mess-Free Rubber Caulk for RV, EPDM Putty for Window, Headlight, Roof, Windshield, and Car Doors : Industrial & Scientific

Review: works great on camper awnings - worked great for installing my slide out awnings... time will tell how it holds up but no issues during install and it feels like good quality stuff... no issues with packaging or melting like I saw in other reviews.. mine is fine
Review: Excellent product - It worked very well to install my new headlight lenses onto my Mercedes...!!

## Features

- AIRTIGHT SEALING. 100% Waterproof black butyl tape provides durable, watertight sealing to RV, windshields, joint sealing, and EPDM metal roofing and patching. Withstands extreme temperatures and corrosive elements.
- MADE TO LAST. Withstanding up to 290°F, our RV butyl seal tape lasts up to 5 years with top-notch sealing performance but still REMOVES CLEANLY, making this butyl rope durable but removable.
- EASY-TO-MOLD. Our butyl window sealant conforms well to uneven, irregular shapes and tight spaces, making it versatile for putty seal tape applications on wood, glass, metal, and plastic.
- MESS-FREE. Thanks to its patented butyl rubber sealant polymer formulation, our putty seal tape doesn’t melt into a messy goo, so it stays manageable on your hands, allowing for a PROFESSIONAL FINISH.
- ZERO GAPS. Our butyl rubber tape is packed continuously without gaps and securely fitted in a durable box, preventing deformations. Our RV window butyl tape installs cleanly without snags, skips, or runs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BPMW7485 |
| Adhesive Format | TAPE |
| Adhesive Side Count | 2 |
| Best Sellers Rank | #3,387 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Butyl Tape |
| Brand | XFasten |
| Color | Black |
| Compatible Material | Ceramic, Glass, Metal, Plastic, Polycarbonate (PC) |
| Date First Available | December 9, 2022 |
| Global Trade Identification Number | 00850043685562 |
| Item Thickness | 0.13 Inches |
| Item Weight | 1.37 pounds |
| Item model number | 2023 |
| Manufacturer | XFasten |
| Material | Rubber |
| Number of Items | 1 |
| Product Dimensions | 0.5"W x 0.13"Th |
| Recommended Uses For Product | Creating Weatherproof Seal on Home Window Frames, Outdoor, Repair Leaks in Gutters and Downspouts, Seal Joints and Prevent Leaks in Boats and Other Marine Applications, Sealing Ductwork in HVAC, Heating, Cooling, Ventilation, Airconditioning Systems for Better Energy Effeciency, Sealing Joints in Roofing, Patching and Siding Applications, Sealing RV Roof, Windows, Doors and other Openings, Sealing… |
| Size | 1/2” x 1/8” x 30', Single Pack |
| Special Feature | Airtight and Watertight Butyl Caulking Tape Sealing, Can Be Used as an Automotive Headlight Sealant, Conforms to Irregular Shapes Making it a Great Automotive Butyl Tape, Super Strong, Gapless, and Mess-free: This butyl window sealant will not reduce into a messy goo, Uv-Resistant, Waterproof, and Nondrying RV putty tape |
| Surface Recommendation | Glass, Plexiglass, Wood, Concrete, Plastic, Polycarbonate, Metal, Galvanized Metal, Ceramic, Stone |
| Tensile Strength | 30 Pounds Per Square Inch |
| Unit Count | 30.0 Feet |
| Upper Temperature Rating | 290 Degrees Fahrenheit |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** XFasten
- **Color:** Black
- **Material:** Rubber
- **Number of Items:** 1

## Images

![XFasten Butyl Tape Black, 1/2 in x 30 ft x 1/8 in – Easy-to-Work-with Automotive Butyl Sealant Tape, Mess-Free Rubber Caulk for RV, EPDM Putty for Window, Headlight, Roof, Windshield, and Car Doors - Image 1](https://m.media-amazon.com/images/I/71Bh7WG27YL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ works great on camper awnings
*by A***R on September 24, 2025*

worked great for installing my slide out awnings... time will tell how it holds up but no issues during install and it feels like good quality stuff... no issues with packaging or melting like I saw in other reviews.. mine is fine

### ⭐⭐⭐⭐⭐ Excellent product
*by E***M on December 27, 2025*

It worked very well to install my new headlight lenses onto my Mercedes...!!

### ⭐⭐⭐⭐⭐ Excellent product to use n marine environments
*by R***L on January 6, 2026*

Excellent waterproof product for sealing safety glass into stainless steel frames for boat portals. Stays soft and pliable in very cold temps. I tested this down to -10 F and still extremely adhesive and pliable. Easy to work with.

## Frequently Bought Together

- XFasten Butyl Tape Black, 1/2 in x 30 ft x 1/8 in – Easy-to-Work-with Automotive Butyl Sealant Tape, Mess-Free Rubber Caulk for RV, EPDM Putty for Window, Headlight, Roof, Windshield, and Car Doors
- Dicor 551LSB-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, Black, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application
- Geocel GC28100 Pro Flex RV Flexible Sealant - Clear

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**Shop now:** [https://www.desertcart.ie/products/537608120-xfasten-butyl-tape-black-1-2-in-x-30-ft](https://www.desertcart.ie/products/537608120-xfasten-butyl-tape-black-1-2-in-x-30-ft)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-05*