Here's my OEM housings painted black
I am happy with mine so far.... not installed yet, but I like the way they look so far. I put about 15 coats of paint on it: but it didn't take that long since I bought this "Fusion" paint that is supposed to bond to plastic very well and recoating can be done every 30 seconds or so. So I made sure I applied very light coats. I tried coating it with a glossy clearcoat, but it made the surface actually DULLER ?! and uneven for some reason. I just recoated in black.
Tips:
That oven bake time/temp is only an estimate. 180 degrees for 10-15 minutes works fine too. The silicone sealant cools and hardens rather quickly so you have to move fast.
I found that taking the pieces apart were very easy after baking them. BUT, I found that putting the pieces back together was the most difficult thing to do in this whole project. When you pull the pieces apart, the clear cover and the housing BOTH have residual silicone on their edges. Well, putting them back together with the black part sandwiched in the middle is VERY tedious because you don't want to get any silicone on the black part. The silicone is sticky because you'll have to bake the housing again to get it back together correctly (to loosen up the silicone).
It's tough to explain, and I'm sorry that I don't have pics or any tips on HOW to do it correctly because I only had 2 shots to do it (left and right housing) and I didn't get it right either time. You'll see from the first pic below that I got some of that silicone on the edge of the black part.... on both housings.