Hydrobuild LW

Dubond’s Hydrobuild LW is specially formulated integral liquid waterproofing compound composed of surface active plasticising agents, polymers & additives. It is used as an additive for cement concrete, mortar & plasters. It makes concrete cohesive and prevents segregation. Hydrobuild LW is an integral waterproofing admixture for concrete and mortar which chemically converts the water soluble compounds present into concrete/mortar into stable water insoluble compounds. It is usedin all types of concrete/mortar requiring water impermeability. It is based on high performance polymers. Conforms to IS 2645 :2003 and IS 9103 – 2000 standards.

  • Features & Benefits
  • Area Of Application
  • Technical Details
  • Packaging
  • Shelf Life
  • Method of Use
  • Health and Safety
  • Safety Precautions
  • Increases Workability
  • Easier Placing
  • Better Compaction and Finishing by acting as Viscosity Modifer
  • Lowers cement content for increase in specifed Strength, Workability & Durability
  • Higher Cohesion
  • Breaks the Salinity of Water by converting them into Salt Crystals
  • Lower water requirement for given Workability
  • Chloride free
  • Increases Extra Bonding Strength
  • Reduce risk of Segregation and Bleeding
  • Reduce risk of Shrinkage Cracks due to Heat of Hydration
  • Reduce risk of Honey Combing
  • Corrosion resistant - reduces the risk of rusting of reinforcement by breaking the chain of Rust Electrons -
  • Makes concrete more cohesive, hence protects steel better against corrosion

Waterproofing of concrete and sand-cement mortars used in :

  • Basements
  • Roof slabs and Screeds
  • Water tanks & water retaining structures
  • External Plastering
  • Bathrooms and Balconies
  • Sunk and Drains
Properties Specification Result
Appearance   Free flowing liquid
Colour   Wine red
Specific gravity @ 25˚C   1.05 ± 0.02
Non volatile content   13 ± 0.05%
pH value   11 – 13
Setting time, minutes   Initial-100; Final-185
Chloride Content IS : 2645 : 1975 >0.0003
Water Permeability IS : 2645 : 1975 >60 % of the control
Compressive Strength N /mm² IS : 2645 : 1975 As per the standard
Dosage IS : 2645 : 1975 200 ml per 50 kg bag of cement

 

200 ml, 1ltr, 5 ltr & 20 ltr container

Shelf life is 12 months from the date of manufacturing in unopened conditions. Store in a cool & dry place.

  • Charge cement & aggregates to concrete mixer as per the mix design, mix in dry state for 12 minutes.
  • Start addition of 75–80% mixing water & mix for 2-3 minutes.
  • Hydrobuild LW is added as per the recommended dosage into the remaining mixing / gauging water,
  • Then add to concrete mixer & mix for another 2 minutes.
  • Place the concrete or apply plaster, as needed .
  • Cure the applied mortar or concrete as per good construction practices.

Use rubber hand gloves & safety goggles, while using Hydrobuild LW. In case of contact with skin, wash with plenty of water. Keep out of reach of children.

  • Do not add Hydrobuild LW directly to dry cement & aggregate mix. Maintain water-cement ratio as low as possible.
  • Do not increase the dosage of Hydrobuild LW than the recommendation.