Lachlan TalbotA #backing #rod, also known as a #backer rod, is a flexible, cylindrical foam material ๐๏ธ๐งฑ used in #construction joints and gaps to provide support ๐ ๏ธ๐ง for #sealant or #caulk. A backer rod is typically made from open-cell or closed-cell #expandafoam, #polyurethane, or other compressible materials ๐ https://www.cdaets.com.au/blog/backing-rods-choosing-between-open-cell-and-closed-cell-for-optimal-sealant-performance/
Lachlan TalbotA #backing #rod, also known as a #backer rod, is a flexible, cylindrical foam material ๐๏ธ๐งฑ used in #construction joints and gaps to provide support ๐ ๏ธ๐ง for #sealant or #caulk. A backer rod is typically made from open-cell or closed-cell #expandafoam, #polyurethane, or other compressible materials ๐ https://www.cdaets.com.au/blog/backing-rods-choosing-between-open-cell-and-closed-cell-for-optimal-sealant-performance/