Crack & Joint Sealant

No water repellent can stop water from penetrating small holes and visible cracks, and because nearly everychimney has them, we developed Crack and Joint Sealant — a unique, breathable, silicone elastomer. Think of itas a paintable caulk. Use it for sealing minor cracks (up to 1/8”) and defects in mortar joints where the mortar andchimney are otherwise sound.

  • 10 Year Warranty
  • Prevents Leaks Through Joint Cracks
  • Seals Cracks Up To 1/8 Inch
  • Compatible With Water Repellents
  • Breathable Coverage Rate:550 standard bricks, or 100 sq. ft.
  • Application Temperatures: 40° – 100° F
  • Application Method: Brush
  • Dry Time:2-6 hours (allow 6 hours before rainfall)
  • Cleanup: Soap and water