machinecoder wrote:clear acrylic laquers are subject to fairly rapid "oxygen-attack" and are brittle, 2-K is far more flexible and will last a lot longer, I used to be an automotive refinisher and ALL paints have a certain amount of porousness.
Excellent! A professional paint guy! Hopefully you can give a pointer on something that affects several jobs I've had outstanding for a while.
Many computers, especially larger ones - DEC pdp and IBM mainframe systems - which have painted metal panels or skins have a paint finish that is NOT smooth; it's rough on a fine scale, like a textured or very fine-grained orange-peel finish.
How was that generally achieved? I'm presuming they were sprayed, was it a particular type of nozzle? A particular type of paint? Texturing material or filler added to the paint? Paint thinned to a specific viscosity? Something that's not too hard to recreate?
Any help would be appreciated, I have a bunch of old IBM mainframes with varying degrees of rust and denting, I want them to look new again