Foam Sealant Joint Backer Rod 13mm, non-absorbent compressible grey closed cell polyethene foam backup material. For instance, you can use it to insert into a joint to control sealant depth and create a backstop to allow proper sealant tooling.
Joint Backer Rod is a non-absorbent compressible, closed-cell polyethene foam material. In other words, it is inserted into a joint to control sealant depth and create a backstop to allow proper sealant tooling.
– Quick and easy to apply.
– Reduces sealant usage
– Flexible – won’t bubble or blister.
We have more sizes available if you click here. Also, we provide the backer foam in flat strips in all sizes, please click here for the 12mm flat backer foam. Fire protective backer foam is also available here.