Racing Hippo wrote:
One thing that's been stopping me is the question of "to prime or not to prime" and if so, what with? I've been told that all resin needs is soapy water...
Since you raise the question John, a couple of pointers. With regard to washing, it is a good practice to wash all kits before painting, not just resin. The reason for this is to remove any grease which has transferred from your hands during assembly. In addition to this, some resin and plastic kit manufacturers use a mould release agent, which inhibits paint sticking to it securely. A good wash is needed to remove this. I dont use a mould release, so you only need to give a gentle wash, no need to scrub. I cant say what other manufacturers do use it though, if in doubt, give a gentle scrub with an old toothbrush or the like.
As far as primers are concerned, although not essential on plastic and resin, they do give a good secure base for further coats of paint to stick to. Personally, I always use a primer. The aerosol acrylic primers, intended for cars, generally give very good results. Two brands I would thoroughly recommend are those under the chain store Halfords own brand, also, the same formula, but considerably cheaper, if you can find them, produced under the Hycote label. The Plasti-kote range is also very good. Some to avoid, Tetrosyl Easy Spray, Auto Quest and surprisingly, the very common Holts range, these are designed to be applied to flat areas, with very thin coats built up gradually. Apply them to anything with raised surface detail and the paint will accumulate around the detail unless you are very very careful.
Finally a warning, DONT
use a cellulose based primer on resin or plastic, it will dissolve them unless you really know what you are doing.
Hope this helps some, dont be afraid to ask if you want any more detail.