Before you install HDF tiles on rail systems or glue them to the ceiling, you will probably need to paint the tiles to better match them with your decor. Use a "Whiz" paint roller and a water-based primer or a 2-in-1 water-based paint.
Cutting
To cut a tile, use a finishing blade on a bench saw with the finished side facing up. If you wish to use another type of electric saw such as a portable circular saw or a jigsaw with a fine-toothed blade, position the finished side face down. To cut the endpoint, measure and mark the perimeter to be cut; Drill a hole in each corner of the perimeter, and use a jigsaw with a fine-toothed blade to cut the endpoint.