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SQ-720004  Nano-hardening liquid for glass hardware, high hardness (6-9H), good wear resistance, good chemical resistance, high transparency, and steel wool resistance 100-500 times. The product can also be used for hardening the surface of PC, PET, PMMA, PC/PMMA composite sheet and other sheet and film material, and coating by spraying, curtain coating, roller coating, etc. The formed coating has good optical properties, no rainbow pattern, high cross-linking density, low curing shrinkage, high hardness, good wear resistance and anti-graffiti properties.