Flatting agent used for HAA system powder paint and application thereof

The invention discloses a flatting agent used for HAA system powder paint. Raw materials of the flatting agent include: wax powder and/or an emulsifier. The invention also discloses an application ofthe flatting agent used for the HAA system powder paint in the HAA system powder paint. The invention also discloses HAA system flatting powder paint, and the raw materials of the HAA system flattingpowder paint include carboxyl group-containing polyester resin, a hydroxyalkylamide curing agent, the flatting agent and an additive, wherein the flatting agent is the flatting agent for the HAA system powder paint. The flatting agent selects suitable wax powder or suitable wax powder and a suitable emulsifier to cooperate with each other, and has a good flatting effect; and the flatting agent used for the HAA system powder paint can be used for the HAA system flatting powder paint, the HAA system flatting powder paint can be prepared by a one-step extrusion method, an operation process of theHAA system flatting powder