Dap Inc 755 Aquarium Repair Silicone Sealant 3 Oz

Product Description

The DAP INC 755 is a 100% silicone rubber sealant formulated for building and repairing aquariums. It comes in a 3 oz tube and cures to a clear, flexible seal that remains waterproof over the long term. The compound stays flexible after curing and will not crack or shrink, making it reliable for glass-to-glass joints and panel seams that are under constant water pressure. Once fully cured, it is non-toxic to both freshwater and saltwater fish. Pool and aquarium service professionals, as well as experienced hobbyists, use this sealant for new tank construction and repair of existing seams.

This sealant is intended for aquarium construction and repair applications involving glass or acrylic panels. It performs in both freshwater and saltwater tank environments. The 3 oz tube size suits single-repair jobs or seam touch-ups on residential and light commercial aquarium installations. It is also appropriate for other waterproof silicone sealing tasks where a clear, flexible, non-toxic seal is required after full cure.

Key Features

• 100% silicone rubber formula stays flexible and will not crack or shrink after cure
• Waterproof seal suitable for continuous submersion and glass-to-glass joints
• Clear finish blends with aquarium glass for a clean appearance
• Non-toxic to freshwater and saltwater fish when fully cured
• Comes in a 3 oz tube for easy application on seams and repair areas

Compatibility

Designed for use in aquarium construction and repair with glass or acrylic tanks in freshwater and saltwater environments.

Installation Notes

Clean and dry all surfaces thoroughly before applying the sealant; moisture or residue on the substrate will compromise adhesion. Apply in a continuous bead along the joint and tool the bead before a skin forms. Allow the sealant to fully cure before introducing water or fish, following the manufacturer cure time guidance on the packaging. Work in a ventilated area during application.