Product Details:

Easily Conforms to Joint Irregularities
Non-Gassing if Damaged
No Moisture Absorption

Sof® Rod is a state-of-the-art sealant backing material combining the best properties of both open and closed cell backer rods in a single, trouble-free product. Sof® Rod is a continuous length of extruded polyolefin foam made with a non-absorbent outer skin and a highly resilient interior network of open and closed cells. Sof® Rod will not out-gas if ruptured. It can be used in temperatures from -45º to 160º F (-43º to 71º C).

Benefits: Backer rod limits the depth of the sealant and prevents excessive sealant use. It also helps sealant assume optimum shape factor to prolong sealant service life and acts as a barrier to the flow of sealant through the joint.

Compatibility - Bi-cellular polyolefin foam is basically an inert material; and therefore, it is compatible, both physically and chemically, with virtually all known cold applied sealants, including self-leveling types.

Diameter of Rod: 3/8 in (9.5 mm)
Feet per Pack: 3600 ft (1097 m)

Proper installation includes the following. Verify that the joint is clean, moisture-free, and clear of obstructions. Use Sof® Rod in a diameter approximately 25% larger than the joint. Always install using a blunt tool or roller. The Backer Rod Insert Tool Set is designed specifically for the smooth installation of all types of backer rods.

Meets all of the requirements of the 1990 Clean Air Act.
Is a “Domestic End Product” as defend in the Buy American Act, Title 41 USC 10

Important Note:
Do not tear, puncture, crease, over compress or stretch during insertion. Always use the correct size backer rod for the particular application. Do not use with hot applied sealants or hot melt adhesives where their surface temperature is over 160 degrees F (71 degrees C).