hi Neko
well depends on his confidence he can use enamel but thats pricey, However it is the strongest by far but you have to use turps and well that and the paint is toxic..... my eco friendlyness does not approve....:ismile:
or the ether move is to use house paint enamel but the colour is always a bit wishy washy....and again turps
so unless anyone knows any better try acrylic its a tough paint so that means sanding the surface a bit to rough it up then you can put a good undercoat spray on which is a good move LIKE THIS ONE proper undercoat
thats the tan colour at the base and the back... It had rust to so all that had to be filled first
then at the end of the painting the trick to make it last ages heaps and heaps of evenly sprayed clear laquer or car varnish about 4 quid a can and dont be shy with it at least three coats
however if its a banger just cover it in acrylic paint
this side was varnished the magic wizard side wasn't and after a year both good! but it wont last
now it looks like this soo far
hope that helps......
ps right now I am not busy so murals are cheap!! lol
have fun and if you need help with vegi oil van check out Blooming futures in brighton they are a cool as non profit convertion crew who can give cool ideas and help the transition, although if you are using biodiesel you can just pour it in !!!:ismile: