24 Jul Backer Rod (25 feet)
Backer rod is important when sealing large gaps. It allows caulk to span a gap without ripping loose. 1/2" will work with 1/4" to 5/8" gaps. 1" is fine for 3/4" to 1-1/8" gaps. 25 feet length...
Backer rod is important when sealing large gaps. It allows caulk to span a gap without ripping loose. 1/2" will work with 1/4" to 5/8" gaps. 1" is fine for 3/4" to 1-1/8" gaps. 25 feet length...