Hi Creekers,
I have been asked to help with an automotive prototype part. The client wants paint removing from a SLA model. The model is transparent and then painted black on the visible side. Removing the paint will allow light to shine through. (Like illuminated buttons).
(For those that may not know, a SLA part is a 3d built part formed by a laser firing into a vat of fluid. The fluid solidifies where the laser focuses).
I have already tried this on an existing production part (material polycarb). When the paint is removed, the finish is tarnished Polycarb - no surprise there.
However, the existing etchings on production parts are laser etched and look milky white and seem flush with the original paint.
Does anyone have experience in this area and able to offer advise on getting this same finish? I'm suspecting that there could be a reacion with the paint that causes it to change colour, rather than removing it but that's a wild guess.
Apoligies for the lenghty description.