Backing Foam Caulking
We keep large stocks of various types of backing foam (also known as backer foam / rod or caulking strip / rod) A very simple and savvy way to save time, save money and save on unnecessary materials with our best-selling, foam backing caulking packs for joint-filling and gap filling usually in conjunction with mastic joint sealants, fillers or spray foams. Conveniently perforated to the relevant dimensions, these polyethelene foam strips are easy to insert into the deepest joints and very effective for backing out irregular cracks and joints prior to applying mastic joint sealants to create a lasting and solid jointseal.
