1 Sensory Indexes
1.1 The surface of coating after drying into film shall be flat, smooth, clean and pore-free.
1.2 The coating film shall be free from softening, cracking, blistering and shedding after soaking.
1.3 The soak solution of coating film shall be colorless and odorless transparent solution without peculiar smell and precipitation.
2 Physicochemical Indexes
1 Sensory Indexes
1.1 The surface of coating after drying into film shall be flat, smooth, clean and pore-free.
1.2 The coating film shall be free from softening, cracking, blistering and shedding after soaking.
1.3 The soak solution of coating film shall be colorless and odorless transparent solution without peculiar smell and precipitation.
2 Physicochemical Indexes