Backer Rod

Backer Rod

five star

Closed-Cell Foam Rope

Backer Rod is extruded closed-cell polyethylene rod that is used in cracks, checks and gaps before filling them with sealants such as Perma-Chink, Energy Seal and Check Mate 2. Caulk joints should not be more than 3/8” thick and Backer Rod provides a way to fill a deep crevice or gap while maintaining the proper sealant thickness for maximum performance. Backer Rod should also be used in checks over 1/4” wide before applying Check Mate 2.

  • Closed cell polyethylene
  • Will not absorb water
  • Heat and cold stable.
  • Should be used to assure proper thickness of sealants including Perma-Chink, Energy Seal and Check Mate 2

Sizes & Prices

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Rod Size Dia.




























1 Box = 2 rolls of backer rod. We do sell individual rolls of backer rod.


five star P Malkmus in TN (02/27/15) - "I am a professional log home Applicator in TN and love your Backer Rod Products. I keep it handy on my truck. I use it on all of my sealant jobs with a joint that is less than 1"

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