I finally decided to paint the aftermarket mirror housings that were fitted to my car when I bought it. My car is Steel Blue metallic.
Heres what I did;
1. Sanded down the plastic with 1000 grit until there was no 'shine' on the plastic & washed it thoroughly.
2. Leave to dry for 24 hours.
3. 3-4 coats of universal primer at 15 minute intervals.
4. Leave to dry for 24 hours then inspect - the finish looked perfect, even all over.
5. Hycote top coat (acryllic) 2 coats at 20 minute intervals.
6. Leave to dry for 24 hours then inspect - I was impressed with the finish for a spraycan job IMO.
7. Lacquer time - holts acryllic clear lacquer - this is where it started to go wrong
Holding the can at a distance of about 20cm I started spraying with sweeping motions from left to right and back again.
After 2 sweeps I could see the top coat 'glistening' unexpectedly under the lacquer - a few seconds later it seemed like the blue pigment was separating under the lacquer but not mixing with the lacquer.
I left it for 24 hours and the lacquer coat looks like expected but the paint underneath seems to have 'mottled' and no longer looks pristine like it did at step 6.
Pictures below (click for full size) - if anyone can have a look and advise what may have happened and;
1. How to rectify? (full rub down and start again?)
2. How to avoid happening again? I have the large main mirror body (which is currently looking lovely in steel blue) to lacquer, then the other mirror.