Closed‑cell white foam backer rod in 19–20mm diameter for medium to wide joints. Provides a reliable bond‑breaker and depth control, helping sealants maintain correct shape and movement capability. Ideal for expansion joints in concrete, masonry façades, precast panels and glazing perimeters. Easy to press into place and trim, with excellent compressibility and recovery. For best results, select a diameter 25–50% larger than the joint width to achieve proper compression.

$1.80

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