Sika® Chapdur (IN) is a one part, preblended, coloured
mineral dry shake hardener for concrete comprising of
cement, specially selected natural mineral aggregates,
admixtures and pigments. Sika® Chapdur (IN) provides
a extremely hard wearing and abrasion resistant top-
ping for monolithic floors. When sprinkled and trow-
elled into fresh wet concrete floors, it forms a col-
oured, dense and wear resistant smooth surface.
The concrete deliveries must be of consistent quality.▪
A concrete slump in the range 75 to 110 mm will nor-
mally give best results.
The slab must be of good quality concrete with a
minimum water/cement ratio consistent with the
production of a fully compacted slab.
The compressive strength must be a minimum of 20
Use of Sikament® or Sika® Viscocrete® super plasti-
cisers is advised to ensure the optimum quality of
concrete and where fibers are used, their optimum
dispersion within the mix.
Air Entrained Concrete is not a suitable substrate for
the application of dry shake hardeners
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