---
product_id: 38638696
title: "CRL 1\" Closed Cell Backer Rod - 100' Roll by CR Laurence"
brand: "crl"
price: "S/.277"
currency: PEN
in_stock: true
reviews_count: 8
url: https://www.desertcart.pe/products/38638696-crl-1-closed-cell-backer-rod-100-roll-by-cr
store_origin: PE
region: Peru
---

# 1" diameter for precise joint fit Withstands -45°F to 160°F extremes Chemical & water resistant closed-cell foam CRL 1" Closed Cell Backer Rod - 100' Roll by CR Laurence

**Brand:** crl
**Price:** S/.277
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal smarter, not harder — the pro’s choice for flawless joints!

## Quick Answers

- **What is this?** CRL 1" Closed Cell Backer Rod - 100' Roll by CR Laurence by crl
- **How much does it cost?** S/.277 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/38638696-crl-1-closed-cell-backer-rod-100-roll-by-cr)

## Best For

- crl enthusiasts

## Why This Product

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

## Key Features

- • **No Bond Breaker Needed:** Foam skin prevents sealant adhesion, allowing for flexible joint movement without failure.
- • **Universal Compatibility:** Works seamlessly with all cold-applied sealants for versatile project use.
- • **Precision Sealant Control:** Ensures optimal sealant thickness, reducing waste and enhancing joint durability.
- • **Water & Chemical Resistance:** Closed-cell design prevents water absorption and resists oils, gasoline, and solvents.
- • **Durability in Extreme Conditions:** Maintains integrity from freezing cold to scorching heat, perfect for any climate.

## Overview

The CRL 1" Closed Cell Backer Rod is a flexible polyethylene foam designed to control sealant depth and improve joint performance. Compatible with all cold-applied sealants, it prevents adhesion to the sealant, allowing for joint flexibility and durability. Resistant to water, chemicals, and temperature extremes from -45°F to 160°F, this 100-foot roll is ideal for professional-grade construction and renovation projects requiring precise, long-lasting sealant application.

## Description

CRL Closed Cell Backer Rod is a round, flexible, closed cell polyethylene foam with an exterior "skin" used as a backing and thickness control device for elastomeric and other cold-applied sealants. The Backer Rod becomes an integral part of the joint into which it is installed, and therefore is available in a range of diameters to accommodate joints from 3/16" to 1-5/8" (5 to 41 mm). It limits the depth of the sealant, thereby preventing excessive use of the sealant, which promotes proper joint design. Because the sealant will not bond to the "skin" of the rod, it can stretch and recover with joint movement, with minimal stress being put on the points of adhesion to the substrate. CRL Closed Cell Backer Rod will not absorb water or wick water to joint walls, which could cause adhesive failure. It is compatible with cold-applied sealants, and its round shape promotes the preferred "hourglass" shape for joint sealants. It withstands hot and cold temperature extremes from -45 degree to 160 degreeF (-43 degree to 71 degreeC). CRL Closed Cell Backer Rod is chemically inert, and resistant to oils, gasoline, and solvents. It will not stain or "bleed" into sealant material. Backer Rod is typically used in expansion/control joints where cold-applied sealants are used. These joints would normally be found in curtain walls, construction partitions, precast panels, parking decks, door and window frame perimeters, coping, floor and deck joints, horizontal traffic joints, and building rehabilitation projects. Proper size selection of CRL Closed Cell Backer Rod is important as it controls the depth of the sealant bead. It must be approximately 25% wider than the joint to fit tightly, and function as a bond breaker to prevent bottom side adhesion of the sealant. Always install using a blunt tool or roller. Cat. No. SBRR Backer Rod Roller is designed specifically for the smooth installation of all types of backer rods.Product Warning:

## Features

- DOES NOT COME ON A SPOOL
- Allows Easy Control of Sealant Application Thickness
- Compatible with All Cold-Applied Sealants
- Won't Adhere to Sealants; No Bond Breaker Needed

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | CR Laurence |
| Part Number | EF1C |
| Item Weight | 8 ounces |
| Product Dimensions | 1 x 1 x 1 inches |
| Item model number | EF1C |
| Size | 1 Inch |
| Color | Gray |
| Material | solid |
| Shape | shape |
| Item Package Quantity | 1 |
| Batteries Required? | No |
| Warranty Description | no warranty |

## Images

![CRL 1" Closed Cell Backer Rod - 100' Roll by CR Laurence - Image 1](https://m.media-amazon.com/images/I/41L3CLSP-4L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Perfect for expansion joints
  

*by R***C on Reviewed in the United States on April 20, 2024*

Great product and easy to use

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great quality
  

*by C***M on Reviewed in the United States on April 14, 2024*

Easy to work with, flexible but firm.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Same quality and size backer rod, but 1/3 the price!
  

*by M***S on Reviewed in the United States on April 3, 2024*

I considered buying this at Home Despot for triple the price, but why?  This was just as good and super cheap.

---

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**Shop now:** [https://www.desertcart.pe/products/38638696-crl-1-closed-cell-backer-rod-100-roll-by-cr](https://www.desertcart.pe/products/38638696-crl-1-closed-cell-backer-rod-100-roll-by-cr)

---

*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-01-23*