These paints give the best finish I've achieved on mdf products and the most durable. Its possible to get a mirror finish with the correct preparation and loads of elbow grease.
The paint may seem cheap but you need to factor in the hardener and thinners, mixing and measuring canisters. Once mixed its thin enough to flow through even the cheapest hvlp spray guns. I use mine with a Lidl spray gun and compressor. I normally give 10mins between coats, and finish with a mist coat where you just hold the gun high up and spray. Get a litre of thinners as it can be used to clean the gun after, or you could just buy a 5ltr of cleaning fluid.
Post spray, I wet sand with 1k-2k wet paper. I never used 3k as the price is ridiculous. Now the finish looks dull and you wonder should I of just left it alone. Buy some Farecla g3 polishing compound and use a damp sponge on a polisher at slow speeds and keep wetting with water in a spray bottle. Don't use angle grinders as they spin too fast and will burn the paint. Leave to dry for a few minutes then wipe away the polishing residue with a microfibre cloth. Now look directly into the piece and see your reflection. Done
When I did my toy kitchen
here, I used 5 different colours and got tired of mixing paints then cleaning the gun, over and over again. Thats why I.m thinking of just using gloss with a roller. But now that I've explained the process, I'll probably still spray my current project, a car bed for my son. Hope it helps.
On the compressor don't forget to use a pressure regulator and water trap. sets correct pressure for the gun operation and stops water from the compressor feeding into the paint.
Hope this helps, good luck