Adhesive Expansion Joint Foam | High-Density Concrete Joint Filler

Adhesive Expansion Joint Foam provides superior flexibility, durability, and weather resistance. Featuring a high-tack peel-and-stick backing, this close-cell polyethylene foam ensures quick, accurate installation along slabs, walls, driveways, and masonry joints without the need for additional adhesives.

Key Features

• Self-Adhesive Backing: Pressure-sensitive adhesive strip allows fast, secure placement on vertical and horizontal surfaces.

• Closed-Cell Structure: Zero water absorption prevents freeze-thaw damage and rot over time.

• High Compressibility: Easily accommodates thermal expansion and contraction to prevent concrete cracking.

• Chemical & UV Resistant: Withstands exposure to soil chemicals, petrol, oil, and harsh sunlight.

• Removable Tear-Off Strip: Includes a pre-scored top strip to easily create a clean channel for joint sealants.

Applications

• Concrete slab-on-ground jointing

• Perimeter insulation around columns, walls, and footings

• Isolation joints in brickwork and blockwork

• Driveways, sidewalks, and patio construction

Installation Guide

1. Clean Surface: Ensure the application surface is clean, dry, and free of dust or loose debris.

2. Apply Foam: Peel off the protective backing paper and press the adhesive side firmly onto the wall or joint perimeter.

3. Pour Concrete: Pour and finish the concrete flush with the top of the foam strip.

4. Tear Top Strip (Optional): Once set, snap off the pre-scored top section and apply joint sealant to seal the top channel.

FAQ 

Q1: What is Adhesive Expansion Joint Foam and where is it used?

A: It is a flexible, closed-cell polyethylene (PE) foam strip with a high-tack adhesive backing. It is placed along concrete slabs, brick walls, driveways, footings, and masonry joints to absorb concrete expansion and contraction, preventing structural cracking.

Q2: Why choose a closed-cell foam over traditional joint materials?

A: Closed-cell foam features a non-porous structure with zero water absorption. Unlike traditional fiberboards or open-cell foams, it will not rot, degrade, or absorb moisture, protecting concrete from freeze-thaw damage over time.

Q3: How does the removable tear-off strip work?

A: The top portion of the foam strip is pre-scored. After pouring and finishing the concrete flush with the top of the foam, you simply snap off the top section once the concrete sets. This creates a uniform 10–12mm channel ready for elastomeric joint sealants.

Q4: Is the foam resistant to chemicals and outdoor weather?

A: Yes. The material is formulated to withstand UV radiation, harsh sunlight, petrol, oil, and common soil chemicals, making it ideal for both interior slabs and exposed outdoor applications like patios and sidewalks.

Q5: What is your standard lead time?

A: Orders are processed within 1–2 business days. Standard delivery takes 15 business days.