As is fairly typical in small scale armour builds, the chassis and running gear come first. In this instance the differing thicknesses of the various runs of road wheels, beautifully crisply rendered and cleanly cast, made for an intriguing difference from the Zvezda early production model, with its sets of four-in-one wheels, cast as complete sections.
This black rubbery stuff does, as already mentioned, set with styrene glue. But it requires longer to fix than the ordinary styrene of the rest of the kit. And similarly, whilst it does take paint, the paint will come right back off again with any handing.