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BACKING ROD 20MM

BACKING ROD 20MM

QAR 120.00

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BACKING ROD 20MM is a closed-cell polyethylene foam rod used as a backing material in expansion joints before applying sealants. It provides proper joint depth control, improves sealant performance, and prevents excessive material consumption. Ideal for construction, glazing, and waterproofing applications.

BACKING ROD 20MM is a flexible, closed-cell polyethylene foam filler used in construction and sealing applications to support sealant installation in expansion joints, gaps, and connection seams. It is designed to be inserted into joints before applying silicone, polyurethane, or other sealants.

The primary function of the backing rod is to control sealant depth, ensuring proper joint geometry for optimal adhesion and flexibility. By acting as a non-adhering base, it prevents sealant from bonding to the bottom of the joint, allowing it to perform effectively under movement and thermal expansion conditions.

Made from lightweight closed-cell foam, the backing rod is resistant to moisture absorption and does not react with most sealant materials. It is widely used in concrete joints, curtain wall systems, precast panels, glazing applications, and general construction sealing works.

 

The 20mm diameter size is suitable for medium-width joints commonly found in structural and architectural applications. It is easy to cut, compress, and install, making it a practical solution for contractors and waterproofing professionals.

Product Features

Closed-Cell Structure

Prevents moisture absorption and maintains joint integrity.

Controls Sealant Depth

Ensures correct sealant thickness for optimal performance.

Flexible & Easy to Install

Can be compressed and fitted into various joint sizes.

Chemical Compatible

Works with silicone, PU, and other construction sealants.

Lightweight Material

Easy handling and quick installation on-site.

Applications & Use Cases

Expansion Joint Sealing

Used as a base filler before applying sealants in concrete joints.

Curtain Wall Systems

Provides backing support in façade sealing applications.

Glazing & Window Installations

Helps control sealant depth in glass and frame joints.

Precast Concrete Structures

Used in panel joints to support flexible sealing systems.

Waterproofing Works

Enhances performance of sealants in wet and exposed areas.

FAQ

1. What is a backing rod used for?

It is used to support sealant application in joints and control depth for better performance.

2. Is it waterproof?

Yes, it is made from closed-cell foam and does not absorb water.

3. Can it be used with silicone sealant?

Yes, it is compatible with most construction sealants including silicone and PU.

4. How is it installed?

It is pushed into the joint gap before applying sealant over it.

5. What size is this product?

This product is 20mm diameter backing rod suitable for medium-width joints.

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