i need help determining what paint to use, i thought rustoleum satin finish was going to be good, but it just leaves it tacky even after a few days of drying. any reccomendations?
You're using enamel outta a can... Thats your first problem.
Use kyrlons crystal clear acrylic. It works fine overtop of rustos matte colors.
And its flexable. I forget if krylon made a clear coat just for plastics. But their color coat for plastics is actually pretty damn good.
Besides that maybe if you can find some... I haven't been able too locally. But you can take it old school and use aircraft dope. RC guys still use it.and just dip the whole thing in dope. And let it drip dry. Takes like a day or two to fully dry. But its pretty durable. Good enough for fishing bobbers at least.
If it's hardware store spray paint, probably not. Most commonly found spray paints are oil based and will clean up with mineral spirits or paint thinner. There are latex (water clean up) spray paints, but they are generally "artist quality," and thus expensive.
yesss kevin, ma nigga
what material are the parts printed out of?
read the back of the paint cans and/or find a datasheet on said paint
do any of the paint propellants/thinners react with your printed part material? They could degrade or be soluble with your material
try using heat to dry them. you may still have solvent that needs extra help to evaporate
Tamiya, the model company, would be using probably the exact paint you want, find a datasheet and buy their paint or a paint with similar properties
So whats the best way to tackle a spray paint on plastic project?
I cant find videos directly related to what I plan on doing but from understanding, these are the steps required for a good spray paint job:
1.Sand or "debuff" plastic shine
2.Paint lightly with two coats and allow to dry for a day
3.Wet sand with 800 grit or 1000 grit sandpaper and give it another 3 coats allow this to dry
4.Clear coat while sanding lightly
This could most likely be wrong but this is what I gathered from spray painting plastics.
Is primer or adhesion necessary if sanding is being done anyway?
Spray paint formulated especially for plastic, and more importantly primer for plastic so the paint has something to bite. If possible due to size, lightly scuff surface with Scotchbrite grey pad first, blow off, wipe, and prime. There is more professional quality online and at any automotive paint supplier.