ChimneySaver RTV

ChimneySaver RTV is a clear, solvent-based silicone elastomer formulated for concrete block and other highly porous masonry with minimal altering of the natural appearance.

  • Effective on hard-to-seal surfaces
  • Controls water penetration
  • Controls moisture related staining
  • UV and temperature stable
  • Ten-year warranty on vertical surfaces
  • Provides durable water repellent protection
  • 100% water vapor permeable
  • Bridges hairline cracks