GAMEMASTER: Terrain Sprays is the ultimate foundation when building terrain and scenery. The high quality waterbased sealer and primers have a matte finish, are non-toxic, odorless, hence safe to use, and will not corrode yoru building materials - even if you are using XPS foam, polystyrene or MDF sheets. Apply multiple thin coats and let it dry for a minimum of 1 hour before continuing work on your terrain. The primers cover a solid colour range, which will satisfy most of your needs when creating hobby terrain. With this set, you are sure to experience an easy and perfect coverage with a flat matte finish, while still preserving all the details. The Army Painter would like to remind our customer base that selling on Amazon or other 3rd party online platforms is against the company policy of The Army Painter.