Grip Strip Backer Rod

Grip Strip is a closed-cell, trapezoid shaped backer rod. Under normal use it will not cause outgassing. Its unique design provides an excellent fit and surface within the chink joint. This results in a savings in material used. Grip Strip is generally used on flat Appalachian style logs that are fairly dry wood. Grip Strip is best suited for applications involving dry wood, which is unlikely to undergo a large amount of shrinkage, or shrink at a rapid rate (like logs sometime do on interior surfaces during their first winter of being exposed to warm, dry air from a furnace). Advantages: It provides a firm chinking or caulking surface. Its shape and texture allow it to be easily installed without using staples, nails, or glue. It repels water. (Most open cell products absorb water). It’s compatible with all commonly available synthetic chinking. It helps prevent blistering of chinking surfaces. It provides extra insulation against heat loss.