A: Skill level 3 mean that the model your about to built has many small parts that demands skill and patience in order to have a real good result. Before going to level 3, one should consider to pratice with models asking skill 1 and 2 which are less demanding for good results.

Substrate: Common plastics used to manufacture model kits including polystyrene and ABS.

The first plastic models were injection molded in cellulose acetate (e.g. Frog Penguin and Varney Trains), but currently most plastic models are injection-molded in polystyrene, and the parts are bonded together, usually with a plastic solvent-based adhesive, although experienced modelers may also use epoxy, ...

Plastic model kits first made an appearance in the mid 1930s when manufacturer Frog released their 1/72 scale model kit “Penguin”. Airfix, Frog, Hawk and Renwal were some of the first brands to introduce pre-cut wooden and plastic models.