if you paint them get a 3M scotchbrite pads from a hardware store, they are flexible and the equivalent of medium/fine grit sandpaper⌠your biggest issue with painting plastic is adhesion, scotchbrite on itâs own will remove the gloss and give the paint something to stick to⌠it might be an idea to take them to an auto repair shop and get them sprayed with baked enamel 2 pack paint, itâs the stuff they paint commercial vehicles with so is very hard wearing, shouldnât cost more than $20âŚ
for stenciling, if you only want to use it twice just get some clear acetate that printers use, the thicker the better as the solvent in paint will eat away at the strength of it, but it is very easy to cut with a scalpel, and because itâs clear very easy to transfer an image.
scuff up the area your wanting painted with RED scotch
degrease with pre wipe, wipe on with one cloth and wipe off with another before the pre wipe evaporates
plastic prime
flat back with 800 wet an dry or p500 dry
now paint
I personally wouldnât bother with an all in one plastis aerosol the finish wonât last and the paint may chip easily, get your self down to you local Automotive Repair supplier for decent gear for a better job and they will supply the paint to
[quote=â, post:6, topic:43317â]
What about protecting the screw threads etc? should i put the screws into the holes?
[/quote] Iâd roll up some paper and stick in the holes. If you want to go the more pro route you can follow the advice from Digi but itâs going to take quite a bit more time and money to paint such a small thing. The Krylon shouldnât chip since itâs made to flex a bit with the plastic but if you clean the Dicers and do a couple of light coats with plenty of time to dry inbetween you should be fine.