| 摘要 |
A high build, fast drying and fast hardening aqueous coating composition comprising: (a) a latex binder comprising: (i) 35 to 65% by weight, based on said latex binder weight, of at least one hard monomer; (ii) 25 to 55% by weight, based on said latex binder weight, of at least one soft monomer; and (iii) 2 to 15% by weight, based on said latex binder weight, of at least one acid functional monomer; (iv) 0.1% to 2.0% by weight, based on said latex binder weight, of at least one anionic surfactant; wherein said latex binder has a glass transition temperature less than 45° C., and wherein said latex binder has an average particle size diameter of between 160 nanometers to 240 nanometers; (b) a combination of at least two coalescing solvents selected from at least one alkyl alcohol ethoxylate, wherein at least one of the coalescing solvents has an evaporation rate greater than 0.01 and at least a second coalescing solvent has a water solubility less than 10; wherein the acid number of the coating composition is less than 10 mg of KOH per gram of polymer; and wherein the coating composition is applied to a substrate at a wet film thickness of about 2 mils to about 15 mils wet film thickness. Also, a method for providing a high build, fast drying and fast hardening aqueous coating at ambient conditions is provided.
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