---
product_id: 13450977
title: "3/8\" Closed Cell Backer Rod - 100 ft Roll"
brand: "technologylk"
price: "NT$1508"
currency: TWD
in_stock: true
url: https://www.desertcart.tw/products/13450977-3-8-closed-cell-backer-rod-100-ft-roll
store_origin: TW
region: Taiwan
---

# Length: 100 ft Non-adhesive Closed cell foam 3/8" Closed Cell Backer Rod - 100 ft Roll

**Brand:** technologylk
**Price:** NT$1508
**Availability:** ✅ In Stock

## Summary

> Seal the deal with confidence! 🔒

## Quick Answers

- **What is this?** 3/8" Closed Cell Backer Rod - 100 ft Roll by technologylk
- **How much does it cost?** NT$1508 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/13450977-3-8-closed-cell-backer-rod-100-ft-roll)

## Best For

- technologylk enthusiasts

## Why This Product

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

## Key Features

- • **Durable Design:** Crafted from closed cell polyethylene foam for long-lasting performance.
- • **Inert Material:** Does not adhere to sealants, providing flexibility in use.
- • **Generous Length:** 100 ft roll for extensive projects and applications.
- • **Sealant Companion:** Perfect for use with cold applied sealants.
- • **Stain-Free Assurance:** Nonimpregnated and nonstaining, ensuring a clean application.

## Overview

The 3/8" Closed Cell Backer Rod is a 100 ft roll of high-quality closed cell polyethylene foam designed for use with cold applied sealants. Its nonimpregnated, nonstaining, and nonbleeding properties ensure a clean and effective seal, while its inert nature prevents adhesion to sealants, making it a versatile choice for various sealing applications.

## Description

Closed Cell Backer Rod available in multiple diameters and lengths Meets ASTM C1330, ASTM D5249 For Use with Cold Applied Sealants Closed Cell Polyethylene Foam Nonimpregnated, nonstaining, and nonbleeding Inert and does not adhere to sealants Meets all requirements of the 1990 Clean Air Act Is a "Domestic End Product" as defined by the Buy American Act , Title 41 USC 10 Closed cell backer rods are designed to limit the depth of sealants, help the sealant assume an hourglass shape (which prolongs sealant life), and serve as a bond breaker to prevent bottom-side adhesion. Backer rods do not stain sealants, and are chemically inert. They are non-gassing, non-exuding, and virtually dust-free. Due to physical and chemical inert nature, backer rod is compatible with virtually all known cold sealants, including self-leveling sealants - butyl, polysulfide, acrylic polyurethane, silicone, and most other cold-applied sealants Diameter of Rod: 3/8" Feet per Roll: 100 ft Joint Preparation and Installation: Clean all joints. Remove any concrete form-release agents, curing compound residue, laitance, and any other foreign materials. To ensure good bond, joints must be clean and dry when the new sealant is installed. Air compressors must be equipped with traps for oil and moisture removal. Install backer rod at depth recommended by sealant manufacturer - use a blunt tool. Commonly used in expansion/contraction joints such as: Curtain Wall Partitions Bridge and Highway Construction Parking Decks Pre-Cast Assemblies Glazing Applications Panel Systems

## Features

- For Use with Cold Applied Sealants
- Closed Cell Polyethylene Foam
- Nonimpregnated, nonstaining, and nonbleeding
- Inert and does not adhere to sealants
- Length: 100 ft.

## Product Details

- **Brand:** TechnologyLK
- **Item Form:** Foam
- **Surface Recommendation:** Tile, Window, Door, Walls
- **Water Resistance Level:** Waterproof
- **Number of Items:** 1

## Images

![3/8" Closed Cell Backer Rod - 100 ft Roll - Image 1](https://m.media-amazon.com/images/I/41QdChhzFBL.jpg)

---

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**Shop now:** [https://www.desertcart.tw/products/13450977-3-8-closed-cell-backer-rod-100-ft-roll](https://www.desertcart.tw/products/13450977-3-8-closed-cell-backer-rod-100-ft-roll)

---

*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-13*