Armacell Backer Rod 1/4" Closed Cell 500'/ Bag

1/4" x 500', Polyethylene Foam, Closed Cell, Flexible, Standard, Gray FillPro® Sealant Backer Rod

FillPro Standard is an ideal non-absorbent backer rod used to control sealant depth and create a back stop to allow proper wetting of the joint surfaces and yield a proper bond breaker between the backer rod and the sealant. Limiting the depth of the sealant prevents excessive use, saving on caulk or sealant. Standard backer rod can also be used as a temporary joint seal.