Spray paint primer is used to improve adhesion of your paint on all surfaces: metal, wood, aluminium, stone, and other surfaces. This primer is ideal to use with our spray paint stencil when doing your social distancing marking. If your final colour is a light shade or fluorescent, we recommend using a white primer. We suggest using a primer when painting on surfaces like concrete where there will be foot traffic. Indoors use a water-based paint without primer (but be aware you may have to re-apply from time to time).