---
product_id: 508376168
title: "Crawlspace-DIY Vapor Barrier Tape, 12 Mil Easy-to-Use Polyethylene Moisture Vapor Barrier Seam Tape for Crawl Space, Repairs, Underlayment, Waterproof, 4\" x 180', 3 Rolls"
brand: "crawl space diy"
price: "R2476"
currency: ZAR
in_stock: true
category: "Crawl Space Diy"
url: https://www.desertcart.co.za/products/508376168-crawlspace-diy-vapor-barrier-tape-12-mil-easy-to-use
store_origin: ZA
region: South Africa
---

# Waterproof & moisture resistant 4" x 180' wide & long coverage 12 mil heavy-duty thickness Crawlspace-DIY Vapor Barrier Tape, 12 Mil Easy-to-Use Polyethylene Moisture Vapor Barrier Seam Tape for Crawl Space, Repairs, Underlayment, Waterproof, 4" x 180', 3 Rolls

**Brand:** crawl space diy
**Price:** R2476
**Availability:** ✅ In Stock

## Summary

> 💪 Seal the deal on moisture—because your crawl space deserves the best!

## Quick Answers

- **What is this?** Crawlspace-DIY Vapor Barrier Tape, 12 Mil Easy-to-Use Polyethylene Moisture Vapor Barrier Seam Tape for Crawl Space, Repairs, Underlayment, Waterproof, 4" x 180', 3 Rolls by crawl space diy
- **How much does it cost?** R2476 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/508376168-crawlspace-diy-vapor-barrier-tape-12-mil-easy-to-use)

## 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

- • **Perfect Poly Bond:** Specifically engineered to bond flawlessly with polyethylene sheeting and underlayment for airtight encapsulation.
- • **Seamless Strength:** Heavy-duty 12 mil thickness ensures a durable, long-lasting vapor barrier seal.
- • **Moisture & Air Blocker:** Creates a tight, waterproof seal that prevents moisture intrusion and humid air leaks, enhancing crawl space health.
- • **Clean, Professional Finish:** Bright white tape blends seamlessly with vapor barriers for a neat, high-visibility installation that’s easy to inspect.
- • **Max Coverage, Minimal Hassle:** Each 4-inch wide roll spans 180 feet, with 3 rolls included for large-scale projects or multiple repairs.

## Overview

Crawlspace-DIY Vapor Barrier Tape is a premium 12 mil thick, waterproof polyethylene seam tape designed for crawl space and basement encapsulation. Measuring 4 inches wide by 180 feet long per roll, this 3-pack offers extensive coverage to seal seams, overlaps, and penetrations effectively. Its strong adhesive bonds perfectly to poly sheeting and underlayment, blocking moisture and air leaks while providing a clean, professional white finish for easy inspection and maintenance.

## Description

Crawlspace-DIY Vapor Barrier Tape, 12 Mil Easy-to-Use Polyethylene Moisture Vapor Barrier Seam Tape for Crawl Space, Repairs, Underlayment, Waterproof, 4" x 180', 3 Rolls: desertcart.com: Industrial & Scientific

## Features

- STRONG SEAM SEAL FOR ENCAPSULATION — Heavy-duty vapor barrier seam tape helps create a continuous moisture barrier by sealing overlaps, seams, and penetrations in crawl space and basement encapsulation systems.
- 4” WIDE x 180’ LONG FOR MAX COVERAGE — Wider 4-inch tape bridges uneven seams and provides more bonding surface; 3-pack gives you plenty of tape for large installs and multiple repairs.
- BONDS TO POLY SHEETING & UNDERLAYMENT — Designed for use on polyethylene vapor barriers and liners; ideal for sealing joints in crawl space plastic sheeting, underlayment, and ground barriers.
- HELPS BLOCK MOISTURE & AIR LEAKS — Creates a tight seal to reduce moisture intrusion and help prevent humid air movement at seam lines, improving overall encapsulation performance.
- CLEAN, PROFESSIONAL WHITE FINISH — White tape blends well with white vapor barriers for a neat, high-visibility install that’s easy to inspect during service checks and maintenance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BSVND47D |
| Adhesive Location | one-sided |
| Adhesive Side Count | 1 |
| Best Sellers Rank | #6,439 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #364 in Adhesive Tapes |
| Brand Name | Crawl Space DIY |
| Color | White |
| Compatible Material | Polyethylene (PE) |
| Configuration | 3-pack (4" x 180') |
| Customer Reviews | 4.7 4.7 out of 5 stars (877) |
| Included Components | Seam Tape |
| Item Dimensions L x W x Thickness | 180"L |
| Item Resistance | waterproof, moisture resistant |
| Item Thickness | 12 mils |
| Manufacturer | Crawl Space DIY |
| Material Type | Polyethylene |
| Model | Stape3pk |
| Number of Items | 3 |
| Number of Packs | 3 |
| Other Special Features of the Product | Strong, Uv-Resistant |
| Part Number | Stape3pk |
| Recommended Uses For Product | Marine |
| Size Name | 3-Pack |
| Surface Recommendation | Concrete, wood, steel, aluminum |
| Unit Count | 540 Feet |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Crawl Space DIY
- **Color:** White
- **Material:** Polyethylene
- **Number of Items:** 3
- **Recommended Uses For Product:** Marine

## Images

![Crawlspace-DIY Vapor Barrier Tape, 12 Mil Easy-to-Use Polyethylene Moisture Vapor Barrier Seam Tape for Crawl Space, Repairs, Underlayment, Waterproof, 4" x 180', 3 Rolls - Image 1](https://m.media-amazon.com/images/I/51OJ4bObVyL.jpg)
![Crawlspace-DIY Vapor Barrier Tape, 12 Mil Easy-to-Use Polyethylene Moisture Vapor Barrier Seam Tape for Crawl Space, Repairs, Underlayment, Waterproof, 4" x 180', 3 Rolls - Image 2](https://m.media-amazon.com/images/I/41RVKf4TmqL.jpg)
![Crawlspace-DIY Vapor Barrier Tape, 12 Mil Easy-to-Use Polyethylene Moisture Vapor Barrier Seam Tape for Crawl Space, Repairs, Underlayment, Waterproof, 4" x 180', 3 Rolls - Image 3](https://m.media-amazon.com/images/I/41St3CkzUVL.jpg)
![Crawlspace-DIY Vapor Barrier Tape, 12 Mil Easy-to-Use Polyethylene Moisture Vapor Barrier Seam Tape for Crawl Space, Repairs, Underlayment, Waterproof, 4" x 180', 3 Rolls - Image 4](https://m.media-amazon.com/images/I/31-PCZMW9QL.jpg)
![Crawlspace-DIY Vapor Barrier Tape, 12 Mil Easy-to-Use Polyethylene Moisture Vapor Barrier Seam Tape for Crawl Space, Repairs, Underlayment, Waterproof, 4" x 180', 3 Rolls - Image 5](https://m.media-amazon.com/images/I/31QZPXQkSZL.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Frequently Bought Together

- CrawlSpace-DIY - Vapor Barrier Tape, [3 Pack] 4" x 180' PE 12mm Polyethylene Tape, Moisture Barrier Seal and Seam, Insulation Tape for Crawl Space Vapor Barrier, Marine & More
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**Shop now:** [https://www.desertcart.co.za/products/508376168-crawlspace-diy-vapor-barrier-tape-12-mil-easy-to-use](https://www.desertcart.co.za/products/508376168-crawlspace-diy-vapor-barrier-tape-12-mil-easy-to-use)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-09-08*