---
product_id: 38638699
title: "Backer Rod"
brand: "sika"
price: "€ 13.30"
currency: EUR
in_stock: true
reviews_count: 11
url: https://www.desertcart.es/products/38638699-backer-rod
store_origin: ES
region: Spain
---

# Water-resistant for lasting durability 20 feet length covers extensive projects 3/4" diameter for perfect joint fit Backer Rod

**Brand:** sika
**Price:** € 13.30
**Availability:** ✅ In Stock

## Summary

> 💼 Seal smart, save time — the pro’s secret to flawless joints!

## Quick Answers

- **What is this?** Backer Rod by sika
- **How much does it cost?** € 13.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/38638699-backer-rod)

## Best For

- sika enthusiasts

## Why This Product

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

## Key Features

- • **Precision Joint Filler:** Perfectly sized 3/4" diameter ensures seamless crack and joint filling for professional-grade results.
- • **Universal Compatibility:** Neutral gray color blends with most surfaces, ideal for windows, doors, and expansion joints.
- • **Efficient Sealant Control:** Prevents 3-point adhesion and controls sealant depth, maximizing material efficiency and finish quality.
- • **Water-Resistant Durability:** Closed-cell foam resists moisture, preventing damage and extending the life of your sealant.
- • **Flexible & Easy Installation:** Compressible foam adapts to irregular gaps and installs quickly for hassle-free DIY or pro use.

## Overview

The SIKA Closed Cell Foam Backer Rod is a 3/4" diameter, 20-foot long, water-resistant polyurethane foam designed to fill and support joints and cracks before sealant application. Its closed-cell structure prevents moisture intrusion, enhances sealant performance by controlling depth and adhesion, and offers flexible, durable support for interior and exterior use on windows, doors, and expansion joints. Easy to install and compatible with most surfaces, it’s a must-have for efficient, professional-grade weatherproofing and repairs.

## Description

Sika's Closed Cell Backer Rod is an essential tool for any joint filler project, ensuring efficient and long-lasting results. Its water-resistant and highly compressible properties make it suitable for interior and exterior uses. The gray color blends well and makes it compatible with most surfaces and sealants. Measuring 3/4" in diameter and 20 feet long, it makes an ideal fit for expansion joints, glazing installations, and window and door perimeters. For a simple installation, just insert the backer rod, apply sealant and smooth for a uniform finish. Achieve professional results and save time and money on your DIY project with Sika's Polyethylene Foam Backer Rod. Available in 3/4"/20 ft. bag.

Review: Good Price - Easy to work with and seems sturdy.
Review: Perfect for sealing those hard to reach spaces. - I have several leaky spots in my house from settling. I didn't want to use spray in foam as it is so messy. The main reason I bought this was for a sliding French door that I can't quite get latched tightly enough. I don't want to have a contractor have my house opened up to fix this in dead winter. Especially when it's been below 10 degrees for the last week. This filled the bill quite nicely. Easy to use and about the same price or slightly less than the big box stores.

## Features

- JOINT FILLER WITH A PURPOSE — This sika foam backer rod partially fills joints and cracks due to concrete expansion, and to enable flexibility in the space before applying sealant
- INCREASE EFFICIENCY — Use the Sika Backer Rod to prevent 3-point sealant adhesion and control its depth for easier adjustment and more efficient use of sealant
- EASY-TO-USE — Clean the area and insert the backer rod firmly and uniformly into the joint or gap. Apply suitable sealant fully over the backer rod and smooth it with a tool for a uniform finish

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B013XSV3A6 |
| Best Sellers Rank | #188,019 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #430 in Hardware Sealers |
| Brand | SIKA |
| Color | Grey |
| Date First Available | July 2, 2009 |
| Global Trade Identification Number | 00033886001595 |
| Is Discontinued By Manufacturer | No |
| Item Form | Foam |
| Item Weight | 1.44 ounces |
| Item dimensions L x W x H | 240 x 0.75 x 0.75 inches |
| Item model number | 108130 |
| Manufacturer | Sika |
| Material | Polyurethane |
| Number of Items | 1 |
| Product Dimensions | 240 x 0.75 x 0.75 inches |
| Style | Joint Filler |
| Surface Recommendation | Window,Door |
| UPC | 033886001595 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** SIKA
- **Item dimensions L x W x H:** 240 x 0.75 x 0.75 inches
- **Material:** Polyurethane
- **Style:** Joint Filler
- **Water Resistance Level:** Water Resistant

## Images

![Backer Rod - Image 1](https://m.media-amazon.com/images/I/41QX--kyanL.jpg)
![Backer Rod - Image 2](https://m.media-amazon.com/images/I/41jI4kCih+L.jpg)
![Backer Rod - Image 3](https://m.media-amazon.com/images/I/41pcSl9WAZL.jpg)
![Backer Rod - Image 4](https://m.media-amazon.com/images/I/519E+YWWaxL.jpg)
![Backer Rod - Image 5](https://m.media-amazon.com/images/I/51F4iSnYvJL.jpg)

## Questions & Answers

**Q: If the concrete slabs are 1 inch apart, will this work? I could not find any 1" being sold... Should the rope seal be the same width or smaller width?**
A: You want to fit the gap. If the backer rod was too small I put in two rods of different sizes to fill the gap. Took some work to make it fit ok and look ok but once I put in the self leveling chalking it looked good. If there is a gap around the rods the chalk will seep down between. Not good. 
Could use a different chalk type but I liked the look of the self leveling after it dried.

**Q: Where is this product manufactured?**
A: Made in USA.

**Q: Will this work between the tub and tile in the bathroom?**
A: Hello. Sika Backer Rod can be used in this application if the sealant installation to follow calls for a closed-cell backer rod. Thank you for considering Sika!

**Q: Can this be used to seal between facia boards and brick wall to keep bats out?**
A: We used this to fill big cracks in our driveway and then used concrete sealer over that.  I suppose you can use it for your purpose.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Price
*by A***R on December 3, 2025*

Easy to work with and seems sturdy.

### ⭐⭐⭐⭐⭐ Perfect for sealing those hard to reach spaces.
*by T***S on January 19, 2024*

I have several leaky spots in my house from settling. I didn't want to use spray in foam as it is so messy. The main reason I bought this was for a sliding French door that I can't quite get latched tightly enough. I don't want to have a contractor have my house opened up to fix this in dead winter. Especially when it's been below 10 degrees for the last week. This filled the bill quite nicely. Easy to use and about the same price or slightly less than the big box stores.

### ⭐⭐⭐⭐⭐ Served its purpose!
*by T***S on September 26, 2025*

Did the job well!

## Frequently Bought Together

- Sika - Polyethylene Foam - Closed Cell Backer Rod (Gray) - to Fill Joints and Cracks Before applying sealant - Water-Resistant, Flexible - 3/4" Diameter x 20' ft. Long
- Sikaflex Self Leveling Sealant, Gray, polyurethane with an accelerated curing capacity for sealing horizontal expansion joints in concrete, 10.1 fl. oz Cartridge
- Sikaflex Concrete Fix, Limestone, Elastic sealant sealing cracks and joints, paintable polyurethane , 10.1 fl. Oz

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-22*