Spec CJ Guard

Water-based, control joint filler stain protectant

Data Sheets:

Available in 1, 5, or 55 gal units

Spec CJ Guard specialty epoxy & polyurea product photo

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Features & Benefits

  • Contains 13 g/L VOC
  • Prevents unsightly stains caused by control joint material overfill
  • Makes shaving of joint fillers easier
  • Can be removed from concrete and tools with water
  • Water-based, very low odor formula


Spec CJ Guard is a water-based blend of film-forming polymers that prevents or reduces staining of concrete due to overfill of epoxy or polyurea joint fillers.