From Robert Knapp:
QUOTE: The laquer dullcoats are still the best, in my opinion, due to the thin layer to do the job. Acrylics tend to be so heavy and settle around hiding some fine detail.
Bob K. |
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Acutually I disagree. Acrylics do go on heavier, however, if applied correctly will dry to .005 to .010, which is a lot thinner than most laquer or enamel paints.
The PolyScale clear acrylics are actually polyurathanes (the same stuff you put on wood floors) and are harder once cured than laquer paints and they don't yellow with age.
The techniques are certainly different and there is a learning curve. I do not recommend using acrylic paints in an airbru***hat has recently been used with solvent based paints as any amount of solvent remaining in the airbrush can turn acrylic paint to gum.
Also, a fine tip (#!) used for solvent paints does not work very well with acrylics one should switch to a medium tip (#3) for best results.
If you're getting puddles, then you're putting it down to heavy. try less pressure (20-25 psi).
One tip for all painters: Screen the paint! This is especially true for acrylics. The paint that dries in the cap with drop into the bottle when you open it. With solvent paints, the solvent will re-dissolve those particulates, with acrylics, once the paint hardens it stays that way.
So, to avoid clogged airbrushes, screen the paint. i use nylons and pantyhose that the female members of my familly save for me.