The backer rod is one of the least glamorous but most important components in an expansion joint sealant application — and one of the most frequently omitted. What is a backer rod? A closed-cell polyethylene foam…
The backer rod is one of the least glamorous but most important components in an expansion joint sealant application — and one of the most frequently omitted. What is a backer rod? A closed-cell polyethylene foam…
The backer rod is one of the least glamorous but most important components in an expansion joint sealant application — and one of the most frequently omitted. What is a backer rod? A closed-cell polyethylene foam…