looking for a track
Join Date: Oct 2010
Location: United Kingdom
In my experience to get a good shiny clear top coat there are two ways - either spray several thin coats and then use compound to flatten it and make it then polish to make it glossy, a lot of work even with a polisher. Or i've had some ok results by firstly spraying a couple of thin coats and then a heavier one so you get a shiny top coat straight away. It's a fine balance between getting the coat thick enough to give a gloss effect and making it so thick it runs. If i was doing a boot lid or spoiler i'd go for the first option. The main problem i have found though is that the rattle cans you buy aren't obviously two pack and so the clear coat is quite soft. I did a bonnet and never again! it wouldn't hold a polish, kept pitting etc. You can though get rattle cans of two pack now but they're not cheap and so the savings are much less - makes getting it done profesionally more worthwhile.
Not sure if that helps! If you do go for it, preparation is key, as is a coolish, dry and still day. Good luck!