NULON PEF closed cell backer rod is manufactured in New Zealand by Nulon, from high quality closed cell, Low Density Polyethylene foam. It is a circular joint backing material, primarily for use in conjunction with elastomeric sealants. We are BIRP Compliant and the only NZ manufacturer of backer rod, this allows us to guarantee shipment of reel orders the same or next working day (Monday to Thursdays) nationwide to commercial business addresses.
Backer rod is rolled into joint gaps at a consistent depth to form a firm base for controlling the depth of gun applied elastomeric sealants. Backer rod is used for forming the base of vertical and horizontal joints typically found in the following applications:
- Joints between precast concrete panels
- Expansion joints between bricks and masonry
- Saw cut joints in concrete floors
- Backing for joints and changes in direction in tiled surfaces
- Around penetrations through walls and floors
- Perimeter joints around timber and aluminium windows and doors
- As draught or dust proofing stop in applications where elastomeric sealing is not required
We manufacture backer rod in sizes 6mm to 70mm in reel and smaller bagged formats.
