Seachem's Aquarium Sealant is a 100% RTV Silicone for sealing and repairing aquariums. It is formulated to provide excellent adhesion and tensile strength with permanent flexibility. It is safe for aquatic life in both freshwater and saltwater.

• Does Not Crack or Shrink - Permanently Flexible
• Resists Pressure and Stress
• Water Tight Seal
  
• High Tensile Strength
• Freshwater and Saltwater use.