Before i start Hello all , being new to the site and also newish to building , i have jumped in with both feet right up to my kneck on a project , of a Two Track Maintenance Depot which most of the inspiritation came from Railway laser lines version , but shhh dont tell them .
and now i ahve come stuck or at a Cross Roads point . After using 3mm GreyBoard for the foundation and most of the build then plasticard for finer detail work ( window Frames and such ) i hav ecome to the point of does it need Priming before painting and what to prime it with any advice would be greatly taken and pondered on very much , thank you in advance