Rotafix Under Water Mortar is a polymer modified cementitious mortar that is capable of curing under water.

Rotafix Under Water Mortar powder is a blend of special cement powders, high quality graded sand, and a unique combination of polymers and admixtures. The powder, when mixed with water, produces a mortar which is wash-out resistant and waterproof. 

The ready to use mortar powders are packaged in 25kg moisture proof durable bags and have a shelf life of 2 years.

Properties :

• Underwater mortar is based on Portland cement with modified polymers and then enhanced with micro silica.
• The mortars develop an excellent putty consistency for ease of application.
• This mortar is used above and below the waterline.
• The mortar does not disperse, wash-out or break up underwater.
• Forms a strong, impermeable bond to brick, stone, masonry, steel, and concrete.
• Mortars can be built up to a level of existing profiles in one operation.
• Produce a smooth and attractive surface.
• Suitable for canals, rivers, reservoirs or lakes as it will not contaminate the water.
• The formulation does not contain iron, high alumina cement, chlorides or harmful substances.
• High yield, economical, non-flammable, non-toxic, odour free, user-friendly and safe to use in an underwater environment.

Uses:

• Repairs to Offshore and underwater marine concrete structures.
• Repairs and waterproofs precast concrete, tunnels, culverts, sewers and pipes.
• Points and repairs bricks, blocks, and masonry above and below the waterline.
• Repairs concrete in tidal zones where time is limited.
• Protects marine structures above and below the waterline.
• Repairs concrete sea defences, harbours, jetties, docks and locks.
• Caulk gaps, joints and seal shutters.
• Underwater mortar stops and plugs the flow of running water or grout through brick or concrete.