Backer Rod, 3/8 in Dia, 640 m L, Polyethylene Kool-Rod is a closed-cell, polyethylene, flexible, rope-like foam joint backing material. This material is virtually non-absorbent and chemically inert to most solvents. Kool-Rod will not stain or adhere to sealant materials. It is fully compatible with acrylic, butyl, polyurethane, polysulfide, silicone and most other cold-applied sealant compounds. Kool-Rod is specifically designed as a compressible backing material to be used in conjunction with a wide variety of cold-applied joint sealants.

Item Features

• Controls depth of sealant/ensures proper joint design ratio
• Forces sealant against joint sidewalls, provides maximum sidewall adhesion
• Sealants will not adhere to Kool-Rod, eliminates three-sided joint adhesion failure
• Closed-cell foam technology, does not allow air or moisture entrapment
• Easily compressible, lightweight
• Installs quickly, stays in place
• Easy to handle, smaller packaging, added contractor convenience

Item Specifications

• Brand Name: W. R. Meadows
• Manufacturer Name: W. R. Meadows, Inc
• Manufacturer Number: 4650375

Item Documentation

• Catalog

Product Certification & Qualifications

• ASTM C1330 Type C/ASTM D5249 Type 3 Specified
• For use in glazing operations, copings, between precast panels and around door and window perimeters