MasterSeal 599

An elastomeric, cement-based waterproof coating for concrete and masonry


MasterSeal® 599 is a blend of Portland cements, selected silica, micro-fibres  and modifying agents. When mixed to a slurry consistency with the acrylic polymer emulsion, it can be easily applied by brush or spray equipment. It cures to give an elastomeric flexible membrane.           The 2 mm thick MasterSeal® 599 membrane will accommodate movement up to 0.5 mm, or 1.2 mm when reinforced with FIBER mesh.

Where is MasterSeal 599 applied?

  • For waterproofing water-retaining structures which may be subject to movement like water tanks, pools, reservoirs, etc.
  • As part of the MasterSeal basement-waterproofing system, in areas sensitive to movement, vibrations and slight settlement.
  • To protect concrete from water, carbonation and de-icing salts.
  • Suitable for internal and external use, against positive and negative water pressure.

Fiber mesh can be used in strip form over joints and cracks or as reinforcement for the whole application.

What are the advantages of MasterSeal 599?

Remains flexible when submerged.
Good chemical resistance against soft water, domestic waste water, manure or other liquids moderately aggressive to mineral substrates.
Freeze-thaw resistant.
Water vapour permeable.
CO2 barrier.
Crack bridging.
UV stable.
Simple and fast method of treating cracks and joints.
Quick and easy brush or spray application.
Can be applied to damp substrates.
Thin layer application. 

Equipment to be cleaned simply with water. 

Product Information

Technical Data Sheet

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