powdercoating theory

ok, paint class basics ....paint contains

1. binder
2. pigment
3. solvent

the binder attaches the paint to the surface often through a mechanical bond created by sand prepping the surface and creating microscopic lines for the binder can flow into as a liquefied substance and grip in the lines as it sets up through a thermoset chemical reaction.

the pigment is an agent of the binder giving the material color and is made to the desired color that the painter wants the car and metallic can be added however the metallic reduces the mathematical area of the pigment and can accelerate oxidation is colors that metallic heavy as the pigment only fades not the metallic ....namely in silver

the solvent acts as a vehicle to properly atomize the paint material and carry it to the desired surface where the solvent will escape into the atmosphere leaving behind the paint material to set up in its permanent configuration. the life goal of the solvent is to escape into the surface ....that is why when lacquer thinner is applied to a surface, it momentarily goes under the surface and then lifts the surface or rather whatever is on the surface as it proceeds to make an escape to atmosphere......in other words ....that's why it can lift paint and dirt off of surfaces.


ok now, powder coating

is my assumption correct by concluding that powder coat material is a binder and pigment sans solvent and when applied to a surface, it is in a droplet format. so that when the heat is applied in baking, it melts these pigment/binder "droplets" and also the heat will expand the metal surface on a microscopic level to facilitate further mechanical bond upon contraction. ...so its like adding soap to water droplets and making them smaller on a microscopic level.


so if that is a true assumption, my question is also :

is there a fair amount of solvent release of a possible resident solvent at the time of baking?

And is powder coat a dual layer substance or is it a single layer that flows out and maintains its pigment property.

and also ....is powder coating a thermoset or a thermoplastic. in other words, after it is set up ...can it be modified with a solvent, like or unlike a lacquer paint?

I have never messed with powder coat before and im trying to understand how it works .