---
product_id: 378214422
title: "CrawlSpace-DIY Vapor Barrier Tape 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment"
brand: "crawl space diy"
price: "414 kr"
currency: DKK
in_stock: true
reviews_count: 9
category: "Crawl Space Diy"
url: https://www.desertcart.dk/products/378214422-crawlspace-diy-vapor-barrier-tape-4-x-180-heavy-duty
store_origin: DK
region: Denmark
---

# Waterproof & moisture-resistant seal 4-inch wide for flawless seam coverage 12 mil thick heavy-duty polyethylene backing CrawlSpace-DIY Vapor Barrier Tape 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment

**Brand:** crawl space diy
**Price:** 414 kr
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal with confidence—lock out moisture, lock in peace of mind!

## Quick Answers

- **What is this?** CrawlSpace-DIY Vapor Barrier Tape 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment by crawl space diy
- **How much does it cost?** 414 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/378214422-crawlspace-diy-vapor-barrier-tape-4-x-180-heavy-duty)

## Best For

- crawl space diy enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** 12 mil thick polyethylene backing delivers unmatched durability in harsh crawl space conditions.
- • **Superior Adhesion:** Synthetic rubber-based pressure-sensitive adhesive bonds seamlessly to plastic and diverse surfaces.
- • **Professional Finish:** Bright white tape creates clean, seamless joints that elevate your DIY project to pro-level quality.
- • **Versatile Application:** Ideal for crawl space encapsulation, basement sealing, marine preservation, and more.
- • **Precision Seam Coverage:** 4-inch width ensures perfect overlap and mess-free application every time.

## Overview

CrawlSpace-DIY Vapor Barrier Tape is a 4-inch by 180-foot heavy-duty polyethylene tape designed for superior moisture barrier sealing in crawl spaces and basements. Featuring a 12 mil thick waterproof backing and a high-performance synthetic rubber adhesive, it bonds securely to plastic sheeting and various surfaces, ensuring durable, airtight seams. Perfect for professional-grade encapsulation projects, this tape combines strength, versatility, and a clean white finish to deliver flawless, long-lasting vapor barrier protection.

## Description

CrawlSpace-DIY Vapor Barrier Tape 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment: desertcart.com: Tools & Home Improvement

Review: Excellent Seam Tape for Vapor Barrier Joins – Flawless Seals Every Time! - This isn't just any tape. The quality is immediately noticeable – it's a premium polyethylene-backed tape with a strong, aggressive adhesive that bonds seamlessly to plastic sheeting. The 4-inch width effortlessly covers overlaps, for precise, mess-free application in tight spaces, creating waterproof joints that lock out moisture and air infiltration. Aesthetically, the white hue matched my plastic sheeting perfectly, creating seamless, professional-looking bonds that elevate the whole setup from DIY to polished. While it is too soon to speak about its durability, you can tell it's built to last a long time. This tape paired perfectly with the butyl tape from the same seller - two indispensable essentials that brought my DIY crawl space encapsulation project to a seamless finish.
Review: Vapor barrier tape - The tape is as described and works as described. Really happy with adhesion and the edges made super easy for tearing with hands which makes work with it quicker to. Great product

## Features

- Our 12 mil, 4 inch wide vapor barrier seam tape was developed to be high performance, durable, moisture resistant and manufactured to withstand the most demanding conditions
- Designed to bind seams of PE films and sealing moisture barriers to encapsulate your a crawl space, vapor barrier tape bonds well to a variety of surfaces with a synthetic rubber-based pressure-sensitive adhesive designed to offer high conformability without excessive stretch
- Our crawl space seam tape is ideal for abatement and restoration, marine and boat preservation or shrink wrap, outdoor masking and stucco application/painting, as well as a sealing tape for building or underlayment purposes
- This durable, waterproof insulation white plastic tape is great for patching and repairs, bundling and housewrap applications, sealing, and separation of dissimilar metals, and more.
- Durable, moisture resistant PE (polyethylene) Insulation Tape film backing features an extremely sticky permanent adhesive for poly liners and plastic-to-plastic vapor barrier adherence, making this white seam tape a great choice for creating a dust barrier, crawl space liner, and more

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B095C1JLJT |
| Adhesive Format | pressure-sensitive |
| Adhesive Location | back |
| Adhesive Side Count | 1 |
| Best Sellers Rank | #5,779 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #66 in Duct Tape |
| Brand | Crawl Space DIY |
| Color | white |
| Compatible Material | Alloy Steel, Concrete, Metal, Plastic, Wood |
| Date First Available | May 17, 2021 |
| Foil Thickness | 12 Mils |
| Item Resistance | waterproof |
| Item Thickness | 12 Mils |
| Item Weight | 2.51 pounds |
| Item model number | STAPE |
| Manufacturer | Crawl Space DIY |
| Material | Polyethylene |
| Number of Items | 1 |
| Product Dimensions | 2160"L x 4"W x 4"Th |
| Size | 4" x 180' |
| Special Feature | Strong, Uv-Resistant, Waterproof |
| Surface Recommendation | Plastic |
| UPC | 850031818026 |
| Unit Count | 180.0 Feet |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Crawl Space DIY
- **Color:** white
- **Material:** Polyethylene
- **Number of Items:** 1
- **Special Feature:** Strong, Uv-Resistant, Waterproof

## Images

![CrawlSpace-DIY Vapor Barrier Tape 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment - Image 1](https://m.media-amazon.com/images/I/31aOpCjTqeL.jpg)
![CrawlSpace-DIY Vapor Barrier Tape 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment - Image 2](https://m.media-amazon.com/images/I/31x4+zq4uiL.jpg)
![CrawlSpace-DIY Vapor Barrier Tape 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment - Image 3](https://m.media-amazon.com/images/I/415AB4Hy3GL.jpg)
![CrawlSpace-DIY Vapor Barrier Tape 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment - Image 4](https://m.media-amazon.com/images/I/417y7SnMwKL.jpg)
![CrawlSpace-DIY Vapor Barrier Tape 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment - Image 5](https://m.media-amazon.com/images/I/41PS+0COXrL.jpg)

## Questions & Answers

**Q: Will this work with husky 10 mil poly vapor barrier?  also does it hold up over time?  crawl space encapsulation project ...**
A: I used it for crawlspace encapsulation.  Very strong and stuck well.  I used 12mil poly.  I cannot speak to how well it holds up over time as I recently just completed the project

**Q: Will this work on sealing osb exterior seams?**
A: I would say no

**Q: Could I effectively seal this against a concrete crack using PU (or other) caulk/sealant?**
A: I don't think it would seal/stick to the concrete.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Seam Tape for Vapor Barrier Joins – Flawless Seals Every Time!
*by A***R on October 6, 2025*

This isn't just any tape. The quality is immediately noticeable – it's a premium polyethylene-backed tape with a strong, aggressive adhesive that bonds seamlessly to plastic sheeting. The 4-inch width effortlessly covers overlaps, for precise, mess-free application in tight spaces, creating waterproof joints that lock out moisture and air infiltration. Aesthetically, the white hue matched my plastic sheeting perfectly, creating seamless, professional-looking bonds that elevate the whole setup from DIY to polished. While it is too soon to speak about its durability, you can tell it's built to last a long time. This tape paired perfectly with the butyl tape from the same seller - two indispensable essentials that brought my DIY crawl space encapsulation project to a seamless finish.

### ⭐⭐⭐⭐⭐ Vapor barrier tape
*by C***A on January 23, 2026*

The tape is as described and works as described. Really happy with adhesion and the edges made super easy for tearing with hands which makes work with it quicker to. Great product

### ⭐⭐⭐⭐⭐ This 12 mil tape works great!
*by G***K on January 17, 2026*

This tape is great. I have bought 5 rolls of this tape and it sticks to plastic excellent. It cuts easy with a knife or razor blade. Great for crawl spaces and high ceilings in pole barns where plastic needs to be secured. Great value for the money. I purchased a roll of white tape from another vendor and it would not stick to the plastic lime this one does so I returned it.

## Frequently Bought Together

- CrawlSpace-DIY - Vapor Barrier Tape, 4" x 180' PE 12mm Polyethylene Tape, Moisture Barrier Seal and Seam, Insulation Tape for Crawl Space Vapor Barrier, Marine & More
- Spirecover Crawl Space Vapor Barrier, 10 mil 10'x100', Thick Plastic Sheeting, Drop Cloth Vapor Barrier Covering for Crawl Space Encapsulation, Heavy Duty Plastic sheeting, Black and White Panda Film
- Crawl Space Vapor Barrier Foundation Seal Tape, 1.5" x 108' Roll, Double Sided Tape, Made in The USA

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**Shop now:** [https://www.desertcart.dk/products/378214422-crawlspace-diy-vapor-barrier-tape-4-x-180-heavy-duty](https://www.desertcart.dk/products/378214422-crawlspace-diy-vapor-barrier-tape-4-x-180-heavy-duty)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-29*