Sashco 30623 5/8" x 50' Coil Pre-Caulking Backer Rod zip wall remodeling and more

remodeling and more

formulated for the majority of water and oil based materials

Slice through the toughest materials with the AccuTec PRO Heavy Duty Utility Blade

recreational/sporting

or scratching

Sashco 30623 5/8" x 50' Coil Pre-Caulking Backer Rod zip wall remodeling and moreBacker rod is a foam like material used to properly configure expansion contraction joints and to provide a surface that either the sealant will not adhere to or will be so flexible in its own right that, even though the sealant adheres to it, does not hinder the needed movement capability of the sealant itself. Backer rod comes in long lengths of a circular profile and is pressed into the joint just before the sealant is applied.