How to avoid the phenomenon of orange peel produced by powder coating

in practice often use active propellant or leveling agent to improve the appearance of the coating film to eliminate orange peel, shrink holes, and other external shortcomingsFunctional active propellants can reduce melting viscosity and then contribute to the melting mix and pigment dispersing of the moisture of the forward substrate, and the active leveling of the coating helps eliminate external weaknesses and facilitates air releaseThe link between the dosage and effect of activity modification agents should be investigatedLack of dosage will lead to shrink holes and orange peels and excessive use will lead to loss of light, fog shadow and the occurrence of the upper layer re-adhesive titleGeneral activity modifiers are taken in premixingThey or the parent material made of resin is a powdered adhesion to the inorganic carrierThe dosage of this additive in powder coatingis is 0.5 to 1.5% low, it can also function wellpropulsion activities and leveling can cut or prevent orange peelsThe system uses low melt viscosity, extended leveling moments during curing, and higher surface tension to advance activity and levelingManipulating the outward tension gradient is an important parameter for cutting the orange peel, and together it also controls the outer tension of the coated exterior to achieve the smallest surface accumulation