Professional-grade soft bi-cellular polyethylene backer rod designed for filling expansion joints, control joints, and gaps prior to sealant application in concrete, masonry, and construction projects. Manufactured by NOMACO with SOF construction in soft formulation and gray color, available in three diameter and length combinations to suit various joint sizes and project scales. This soft, flexible bi-cellular polyethylene foam rod provides proper backing for sealants, compresses easily into joints, controls joint depth, prevents three-sided adhesion, and reduces sealant consumption while ensuring optimal joint performance. The braided design doesn't spin as much as twisted line, bringing plumb bobs to rest sooner for faster layout work. Available in 7/8", 5/8", and 3/8" diameters with corresponding lengths optimized for different project requirements.
