Masons PEF Cylindrical Flexible Closed Cell Polyethylene Backing Rod

Masons™ PEF Rod is a cylindrical flexible closed cell polyethylene material, available in various diameters from 6mm to 50mm

Masons™ PEF Rod provides the following functions:

• Limits the amount and depth of the sealant applied into the joint.
• Acts as a bond break to allow joint movement without undue stress to sealant.
• Acts as a barrier to the flow of sealant through a joint.
• Will assist in providing an around the window frame and penetrations through walls.
• For use with pre-cast concrete slabs and joints between brick and masonry.
• Easy to install, non toxic CFC free.
• No water absorption.