I have spent Saturday and Sunday morning spraying with Plastikote BBQ paint.
It's now had five coats, two yesterday, which were ruined by a severe rainstorm. Hence the tarp to protect me from the British summer weather!
So today, I flatted it back with a nylon scourer to get all the bits off that were thrown up by the rain.
It's now had a further three coats and has been at 250 degrees C cure the paint and harden it.