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HydroCoat 313-WP

  1. Instant Water Stoppage: Quickly halts running water or seepage through masonry or concrete, hardening under water pressure within 2 minutes.
  2. Versatile Applications: Ideal for leak sealing prior to tanking, sealing leaks at wall/floor junctions, repairing mortar joints and cracks, fixing construction faults like honeycombing, and anchoring bolts or posts.
  3. Efficient Water Control: Effectively controls water ingress during sump installations, providing reliable waterproofing solutions.

Fast setting, polymer compound that instantly stops running water or seepage through masonry or concrete substrates, becoming harder and more resistant when subjected to water pressure. The non-shrink material expands slightly and sets in about 2 minutes.

  • Key Benefits
  • Typical Applications
  • Technical Data
  • Key Benefits

    Key Benefits

    • Stops running water.
    • Fibre reinforced.
    • Polymer modified.
    • Non-shrink and non-metallic.
    • Exceptional durability.
    • Lasts as long as the structure to which it is applied.
    • Easy to use – no specialist skills or equipment required.

    Typical Applications

    Typical Applications

    • Leak sealing prior to tanking with Newton liquid waterproofing products.
    • Sealing of leaks at wall/floor junctions.
    • Sealing of leaking mortar joints.
    • Leak sealing of cracks in masonry or concrete.
    • Repair of construction faults such as honeycombing.
    • Anchoring of bolts or posts.
    • Controlling water ingress during sump installations.

    Technical Data

    Technical Data

    Features Result
    Form – One component Powder
    Colour Grey brown
    Pack size 25 kg
    Yield per kg 0.55 litres
    Mixing time 30 seconds
    Pot life @ 20ºC & RH of 60% 2-3 minutes
    Odour None
    VOC content None
    Placement time 2-3 minutes
    Fully cured 4 minutes
    Application temperature +5ºC to +40ºC
    Service temperature -20ºC to +70ºC
    Shelf life 6 months

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    Speak to our friendly, expert team

    Our staff are able to provide guidance for projects of all sizes, whether you require some general advice about damp or waterproofing, or support with technical drawings and specifications.


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      We will be closing between Christmas and New Year, with the last day of operations being Friday 20th December. Last orders for delivery before Christmas therefore need to be placed by 2pm on Thursday 19th December, with final deliveries on Friday 20th December. After this, no deliveries will be possible until January 2025. The Newton branches in Tonbridge and Leeds will reopen in the New Year on Thursday 2nd January 2025.