200m

 Sealoflex 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.BENEFITS- Quick and easy to apply. - Reduces sealant usage - Flexible – won’t bubble or blister.