Montana CHALKSPRAY is a chalk-based pigment spray, ideal for outdoor temporary marking as well as for indoor studio artwork. It is available in 10 powerful colour shades that are deep matte and high covering. Montana CHALKSPRAY can be applied on various surfaces such as pavements, walls, cardboard or canvas. Depending on weather conditions and climate, outdoor marking lasts between several days to several weeks. It fades quickly during extended periods of rain or in high traffic areas. On non-po