Patent ID: 7803869

Claim:
A weather resistant, rapidly removable coating composition comprising: (a) an acrylic polymer comprising 19 to 26% by weight of an acrylic polymer with an acid number of between 60 and 70 and a hardness temperature (Tg) of between 26° C. and 30 ° C., and 2.4 to 6% by weight of an acrylic polymer with an acid number of between 28 and 34 and a hardness temperature (Tg) of between 22° C. and 26° C.; (b) an aliphatic water-borne urethane polymer in an amount of from 0.4 to 1.2% by weight and having a viscosity (cP) of from 120 to 130 and a pH of 8+/−1.5; and (c) ammonium hydroxide in an amount of from 0.06 to 0.6% by weight to achieve a pH of the composition of from 8 to 8.5.