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« on: May 04, 2017, 11:18:53 pm »
If I may chime in here,...Spartan resin is by far some of the best casting I've seen. Forgeworld also has great models but one of the most detailed pieces I ever got from them was the Tauros Elysian vehicles which was completely warped. I had cleaned and then submerged the resin pieces to straighten them in boiling water; this leads me to answering the first about the primer. Washing the model removes not only the release agent but also a very very fin film of residue left over from the casting process that sticks to the release agent once the chemical mix heat and begins to cure. And while most modern release agent arn't really a problem for primers the main reasoning behind this is to remove as much material from the bare styrene/resin. Alot of beginner mistake happen at this step when parts don't fit as sometimes the warping happens right after the casting process as the cast is released from the mold. Submerging the resin pieces in Hot water takes care of this problem, in addition let the pieces stay in the water a few minutes, they will completely reshape themselves.
When I wash the models I use an old toothbrush and make sure I deep clean the model, damp it dry and leave it overnight before I do anything with it. I find that on inspection the texture of the models surface is completely matte, also the grooves in the details/textures are stronger and cleaner. One of the things hobbyist forget is to leave the model to dry for at least 48hr before applying additional paint, you have to let the primer bond to the surface. You'll notice that after a couple days it's much harder to scrape off the primer.
As for the Clear-coat It depends what your painting a model for. If it's for realism/display I wouldn't use clearcoat as not all surface area look "matte". For personal and tabletop use. I stopped using rattle cans simple because frosting can happen through moisture at the tip of the nozzle head or due to atmo conditions and if you have a nicely painted model you always run the risk. I use matte or satin finish slightly dilluted(Vallejo,GW,Tamiya)through my Airbrush never had any problems.