My A/C will be electric as are all of my other A/C. Have been using Prymol, which is designed for etching plastic, for some years with no ill effect. As my preference is for Naval Aircraft the tendency is to buy the paint by the 1/2 litre which costs £9.40, however smaller quantities are availlable with a match pot costing about £1 which is enough to paint several A/C. Scratch built A/C are normally covered in silver or grey film etch primed and then painted. So far have built, covered, primed and painted a Firefly, Sea Mosquito,Sea Fury,FW190 and aTA154 using this method with acrylics and enamels as well as numerous foamies using emulsions. The only difficulty as yet unsolved is that of producing lettering and decals. At present am still using Leteraset