WJ BONDCRETE is a milky white liquid produced from styrene and butadiene by high-pressured emulsion polymerization. WJ BONDCRETE MODIFIED MIXES may be slightly darker than unmodified mixes.



  • Concrete repair: spalled concrete, floors, beams and precast slabs
  • Floor screeds and toppings
  • External waterproof, weatherproof and frost-resistant render
  • Waterproofing and tanking: basements, lift shafts, water towers and dams
  • Bonding new concrete to old


  • Doubles tensile strength
  • Reduces bleeding
  • Non-toxic – can be used with potable water
  • High resistance to water penetration
  • Good resistance to frost permeation
  • Good resistance to frost attack
  • Reduces water vapour permeability
  • Adheres to concrete, steel, brick and glass
  • Above- and below-ground applications

Surface Preparation

  • Remove all laitance, oil and grease
  • Ensure that reinforced steel is clear of grease or oil
  • Remove scale and rust
  • When repairing damaged concrete, ensure that the concrete has been cut back to a sound material


  • Mix 1 part WJ BONDCRETE to 3 parts water.

Equipment Care

All tools should be cleaned with water immediately after use. If delayed, the use of soap and coarse wire wool may help.


  • 5 litres
  • 25 litres


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