My front and rear bumpers are pretty tired looking. I can beat the dents out (I think! They seem pretty thick metal) But can I get a decent finish at home with rattle cans? Or should I just send them to the local sprayer?
You can get a perfectly good finish with rattle cans. Particularly if you go to a proper paint factor - their cans spray really nicely: better than the Halfords ones. Get them to mix you L90D in cellulose and it'll go on like a dream if you've prepped properly.
So what’s the process then, sand down to what grade? Then primer, then celly top coat from a can. Buff to a shine after?
Whatever you see before you top coat will be your finish in terms of scratches. The bus up there hasn't been polished - for a shine out of the can paint it as "wet" as you dare.
Nitrocellulose is not nice to breathe in. 2k is even worse. Always use a mask and spray in a well ventilated area, unless you're using a proper industrial face mask
I'll also add that nitrocellulose is easier to get a decent finish, as each coat will blend into the previous coat - which makes it a little easier to sand back any runs and touch it up, as it effectively becomes a single layer. 2k will show witness marks if you sand through a coat, requiring another full coat to cover.
That include undercoat ...I did can spray my Bedford cf cab and was pleased with it ,nowt special but didn't matter ...but cheap .
