ECA Backing Rod’s are manufactured from closed cell polyethylene, are non-absorbing, are U.V resistant and have excellent weather ability properties.
ECA Backing Rod’s are used in joints in pre-cast and cast-in-situ concrete elements to give support to the joint sealant application, aid in the correct joint sealant geometry (application depth and shape) and prevent the joint sealant from adhering to the top of the expansion joint filler board (3way bonding), acting as a bond breaker.
• No bitumen content.
• Ability to compress and recover.
• Excellent weather ability.
• Acts as a bond breaker.
• Resistant to ultraviolet light.
• Suitable for submerged or trafficable joints.