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JS waterproof coatings, combining emulsions and cement, face bubble entrapment in high-viscosity mixtures, leading to pinholes and leakage paths. Chemi Tech’s KM-220 integrates self-emulsifying technology with a polyether-siloxane hybrid structure:
Self-Dispersing: Spontaneously disperses in aqueous systems without mechanical stirring (compatible with pH 8–12).
High-Viscosity Penetration: Low-MW polyether chains (MW 2000) accelerate bubble rupture, 3× faster than traditional products.
Cement Compatibility: Resists stratification cause by inorganic powder reactions.
Microfoam from two-component mixing created pinholes (≥5% area coverage) in a tunnel project. After adding 0.4%KM-220:
Wet-film bubbles reduced by 95%, eliminating pinholes
Tensile strength increased by 22% (to 2.8 MPa)
Maintained defoaming activity at 50°C, cutting period by 30%
The solution is also used in roof waterproofing membranes, enabling single-pass bubble-free application.
Guangzhou Chemi Tech New Material Co., Ltd.
Address : No. 3 Road, Lanshan Village, Xiancun Town, Zengcheng District, Guangzhou City
Contact : +86-19820415595(Manager Fang)
Tel : +86-13414362583(Manager Lee)
E-mail : crystal@gzchemitech.com