Description
Expansion Joint Backer Rod Price in Bangladsh
Expansion Joint Backer Rod (DURA Rod) is a high-quality, closed-cell polyethylene foam rod widely used in the construction industry as a backup material for sealants. It is specifically designed to provide excellent support and control the depth of sealant in expansion and contraction joints.
Expansion Joint Backer Rod is a flexible, non-absorbent, and lightweight foam rod made of closed-cell polyethylene. It is placed inside the joint to control the depth of the sealant, provide a firm backing, and prevent three-sided adhesion — ensuring the sealant performs efficiently under expansion or contraction.
It is chemically inert, rot-proof, and compatible with most cold-applied sealants including polyurethane, polysulfide, and silicone-based sealants.


Features of Expansion Joint Backer Rod:
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Closed-cell, non-absorbent polyethylene foam
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Provides uniform joint depth and shape factor
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Reduces sealant usage and cost
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Excellent compression and recovery properties
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Resistant to oil, water, and chemicals
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Easy to handle, install, and cut
Uses/Applications:
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Expansion and construction joints in concrete structures
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Highways, runways, bridges, and pavements
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Precast concrete panels and curtain walls
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Basements, retaining walls, and parking decks
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All types of building joints before sealant application
Technical Information:
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Material: Closed-cell polyethylene foam
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Shape: Round rod
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Diameter Range: 6mm to 50mm
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Density: 25–35 kg/m³
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Temperature Resistance: -40°C to +80°C
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Color: Grey or White
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Packaging: Coil or roll form
Why Choose Our Expansion Joint Backer Rod?
Our Backer Rods ensure long-lasting joint sealing performance, easy installation, and reduced sealant cost. They provide a reliable base for sealants, making them the perfect choice for professional joint sealing in construction and infrastructure projects across Bangladesh.
Packaging:
Available in coils or rolls in various diameters (6mm–50mm)


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