EPE Backing Rod – Closed Cell Polyethylene Foam
Our EPE backing rod is a flexible, closed-cell polyethylene foam used to fill joints and gaps before applying sealant. It acts as a bond breaker and controls the depth of sealant, preventing three-sided adhesion and reducing material waste.
Perfect for construction, caulking, tiling, glazing, waterproofing, and joint sealing, this backing rod is lightweight, moisture-resistant, and easy to install.
🛠️ Common Applications:
-
Expansion joints in concrete and brickwork
-
Pre-sealant filler between door/window frames and walls
-
Wall-to-floor joints in bathrooms and wet areas
-
Tiling, caulking, waterproofing and glazing
-
Commercial, civil and residential construction
📏 Available Diameters:
-
10mm
-
13mm
-
15mm
-
20mm
-
25mm
-
30mm
-
40mm
📦 All rolls are 50 metres long
Bulk and trade pricing available on request.
✅ Product Benefits:
-
Closed-cell EPE foam – does not absorb water
-
Compressible, flexible, and easy to work with
-
Reduces sealant usage and prevents 3-point adhesion
-
Suitable for interior and exterior use
-
Compatible with silicone, polyurethane & hybrid sealants
🔧 Technical Specifications:
-
Density: 2.40 – 2.60 PCF (3.85 – 4.18 g/m³)
-
Deflection: 4 PSI @ 25% compression
-
Water absorption: 0.002% by volume
-
Temperature range: -67°C to +98°C
📍 Proudly shipped Australia-wide
Ideal for builders, tradies, waterproofers, and serious DIYers.
Also see our range of commercial foam products.
