BOSTIK CWP is a surface applied, integral crystalline
waterproofing material, which waterproofs and
protects concrete in depth. It consists of Portland
cement, speciallytreated quartz sand and a compound
of active chemicals. Bostik CWP needs water only to
be mixed prior to the application. When Bostik CWP is
applied to a concrete surface the active chemicals
combine with the free lime and moisture present in
the capillary tracts of the concrete to form an
insoluble, crystalline structure. These crystals fill the
pores and minor shrinkage cracks in the concrete to
prevent anyfurther ingress, still allowing the concrete
to breath.
BOSTIK CWP can be applied to all structurally sound
concrete – new or old. It may be applied to either the
positive or negative sides of the concrete face. Typical
areas ofapplication are :
Watertanks/ towers
Reservoirs / dams
Swimming pools
Watertreatment works
Basements / Foundations
Retaining walls /Bridge decks etc
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