Hydro stop is an amazing product to seal a crack or holes in a pond or pool, even  while it is soaking wet. A chemical reaction takes place and the powder instantly creates a waterproof seal when it gets in touch with water. It dries within one or two minutes, creating an amazing seal.

It can also be used to seal new fittings like a pool light etc. and it can be used for instant fixes on roofs, etc.

Hydro Stop

HYDROSTOP a pre-mixed cementations’ grey powder combined with accelerating chemicals to produce an instant setting repair compound to stop flowing water within 1-2 minutes in concrete water retaining structures.

Typical Applications

• Stop soaking water caused by water pressure
• Stop flowing water through holes and cracks in concrete and masonry surfaces
• Seals around pipes, conduits and ducts
• Areas of application are:  reservoirs, dams, tunnels cellars, underground garages, etc. 
• Koi / Fish Ponds and Swimming Pools Advantages
• Easy to use – addition of water only or applied to surface in powder form
• Sets quickly within 1-2 minutes
• Expands on setting Non-Staining Durable
• Frost and de-icing salt resistant

Directions for Use

• HYDROSTOP is a very fast setting material and all preparatory work must be completed before mixing is commenced.
• The surface must be firm, clean absorbent and free of dust or plaster.
• Do not mix more product than can be placed with in two minutes
• Wet surface to be treated before application.
• Add clean water to a small amount of HYRDOSTOP and mix to the consistency of putty.
• Tool material into the prepared opening and hold firmly in place until product has hardened.
• Stop flowing water by forcing dry powder into cracks and hold firmly in place until product has hardened.
• Repeat if Necessary