wtc freedom benson penn_ave marina1 oregon seattle_art_museum bel_towers one_museum_park

Backer Rod

Backer Rod
We distribute several types of closed-cell and open-cell backer rods.   These include:

  • Sof-Rod backer road is a flexible, polyolefin foam rod made of a non-absorbing outer skin and a resilient interior network of both open and closed cells that does not out-gas when ruptured. It is type “B” per ASTM C 1330- made of bi-cellular material.  Can be used as a gasket or seal for ASTM C 717
  • HBR is a fully closed cell polyethylene, non-gassing backer rod.  It is type “C” under ASTM C 1330.
  • HBR-XL is a cross-linked, closed cell polyethylene backer rod for hot sealants
  • Foam Pak II is a non-gassing, chemically inert open-cell polyurethane backer rod used when applying elastomeric sealants. It is type “O” for ASTM C 1330.
  • Foam Control Joint – HBR® Foam Control Joint is a flexible polyethylene foam with a 1/2″ score on the top. It is used in various concrete applications to control surface cracking where an expansion joint is required. After the surface of the slab is finished, the top 1/2″ portion can be separated and removed creating a 1/2″ void at the surface of the slab for a variety of sealants.
  • HBR® Foam Expansion Joint is a flexible polyethylene foam. It is used in various concrete applications to control surface cracking where an expansion joint is required.
  • Flat Rod is a flexible polyethylene foam. It is used in various concrete applications to control surface cracking where an expansion joint is required. It can also be used as a backing material for use with sealants.
Seattle Office

6452 S 144th St
Tukwila, Wa 98168
800.333.8877
206.624.4574
Fax-206.624.8509

Spokane Office

5610 E. Broadway
Spokane, WA 99212
509.535.7756
Fax-509.535.2459

Yakima Office

515 So. 5th Ave.
Yakima, WA 98902
509.248.7900
Fax-509.453.2094

Kennewick Office

320 W. Entiat Ave #E
Kennewick, WA 99336
509.586.1282
Fax-509.586.2416

Portland Office

539 SE Division Pl #2
Portland, OR 97202
800.444.8877
503.238.1253
Fax-503.231.0162

Boise Office

218 E 50th St
Boise, ID 83714
208.323.4978
Fax-208.323.0807