A single-component paint with a base of selected bitumens in a solvent solution. Isamite has a low viscosity and is easy to apply with a brush, roller or spray gun on horizontal, sloping or vertical surfaces. Once completely dry, Isamite forms a film that bonds very firmly to the substrate. It is completely waterproof and chemically resistant to the action of water, diluted acids and most aggressive agents present in the soil and the atmosphere.


  • Waterproofing walls and foundations over bare ground.
  • Painting concrete cisterns and cementitious surfaces in contact with slightly aggressive solutions.
  • Suitable for use on concrete. Must be solid, dry and free of oils, grease, old paint and organic growth. Cement laitance and loose/ crumbly sections should be removed with wire brush.

General information

Uniclass 2015

Pr_35_31_68_16 Cold-applied bitumen solutionsPrimary


J30/10 Cold applied damp proofing

J30/110 Cold applied tanking . . . . . .

J30/130 Cold applied damp proofing . . . . . .

M60/18 Special coating

M60/195 Special coating

Specification data - Cold-applied bitumen solutions

Product Reference



Not required

Mapei fibreglass mesh

Application (minimum)

2 coats at 250–300 g/m² per coat


Fine graded sand, 0–1mm

Product Options


  • Mapei fibreglass mesh inserted into first Plastimul render coat whilst still wet (to be used when Plastimul applied over substrate with crazing).


Sustainability Brochure

Sustainability Brochure

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