Dry mixing additive for powder coating and powder coating thereof for providing texture effect

The invention discloses an additive capable of being used as dry mixing application, and a powder coating composition formed by the additive and another body powder with the texture feature and provided with snakeskin or tortoise pattern effect. The dry mixing additive is also a powder coating composition and has the plane high gloss, the basic constitution is one or more of the hydroxyl polyester resin, the amino resin crosslinking agent, the sulfimide type catalyst, the levelling agent /degasifier and the pigment and filler. The powder coating with the snakeskin or tortoise pattern effect is composed of the above mentioned dry mixing additive and the body powder which form the powder coating with the snakeskin or tortoise pattern provided by the inventionthrough the dry mixing; the weight ratio of the body powder to the dry mixing additive is 1: 0.0001-1, preferably 1: 0.01-0.1, more preferably 1: 0.02-0.05. Compared with the prior art, the impact performance and the stability of the patter are improved, an