The main indexes of industrial construction grade HPMC powder are hydroxypropyl content and viscosity. Hydroxypropyl content is high, water retention is generally better. Viscosity, water retention, relative (rather than absolute) is also better, and viscosity, in cement mortar better.
Read MoreFor automotive plastic parts coating, interior part focuses on solvent resistance, exterior part focuses on water resistance, stone strike resistance, weather resistance and decoration. Manual air spraying and automatic spraying can be used for plastic parts.
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