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Fast Setting Power for Drip Leakages

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Dubond’s Hydro Lock is one component instant leak plugging compound. It is composed of special cement, properly graded fillers, additives & polymers which set very fast, when contact with water. It is ideal for instantaneous sealing of leaks and plugging wet cracks in concrete and masonry surfaces. It is specially formulated to stop the flow of running water.

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Areas of Application






Concrete Pipe

Water retaining structures

RCC water tanks

Features & Benefits

Setting - Sets immediately on contact with water

Sealing - Effective wet crack sealing in concrete and masonry surfaces

Plugging - Can stop the leaking / dripping water, until the final repairs are carried out

Hardness - Hardens instantly under continuous wet conditions

Strength – Gains strength rapidly

Ease of Application – Ready to use powder, can be applied by hand

Surface Preparation

  • Clean the surface by wire brush to remove loose particles & moss
  • Open the crack by chisel or scapper to make ‘V’ shape groove, clean the dust with water


  • Identify the exact source of leakage and close with finger or hand
  • Take a handful of Hydro Lock powder and hold it against the source of leakage. By removing finger slowly from the source
  • The powder will get wet due to water coming out and will harden within 3 minutes. Hold for a few more seconds for best results.

Technical Information

Properties Specification Result
Colour Grey
Setting Time, Minutes ASTMC 266 2 - 3
Compressive Strength, N/mm2
After 2 hrs. BS : 6319 3 - 4
After 6 hrs. BS : 6319 4 - 5
After 24 hrs. BS : 6319 6 - 7
After 3 hrs. BS : 6319 15 - 16
After 7 hrs. BS : 6319 18 - 20
After 28 hrs. BS : 6319 27 - 30

Other Information


  • Hydro Lock will plug leakages only on cementitious substrates
  • Only used for plugging leakage instantly, till permanent repairs are carried out
  • Permanent repairs must be carried out using appropriate products of Dubond's product range


1 Kg & 25 Kg.


Fresh Mix Density 1.8 kg/Ltr.


  • Shelf life is 6 months from the date of manufacturing in unopened condition
  • Store in a cool & dry place

Health & Safety Precautions

  • Use rubber hand gloves & safety goggles, while using Hydro Lock
  • In case of contact with skin, wash with plenty of water
  • Keep out of reach of children's

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