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Cat Anti-Bocor
BUILDING MATERIALS & CONSTRUCTIONintermediate
Definition
Waterproofing paint or elastomeric coating — a specialized paint that cures to form a flexible, waterproof membrane. Cat anti-bocor is applied to roofs, flat surfaces, and areas prone to water infiltration, and is meant to seal hairline cracks and minor seepage while remaining flexible to accommodate thermal movement. Its effectiveness is highly dependent on proper surface preparation.
Example
An Indonesian flat concrete roof is treated with cat anti-bocor painted over the entire surface in a 2 mm cured thickness — the elastomeric coating accommodating the thermal expansion of the concrete while blocking water infiltration through hairline cracks.