This self-leveling coating is useful for lling bumps, dents, scratches, for removing bubbles, texturing€¦ It is suitable for large-scale repairs and can be used as soluble putty. Before using Micro ller primer you will need to shake the spray well, at least a minute to get a good mixture. Once dry, it perfectly covers all the small imperfections, scratches, moulding marks, sanding abrasions and all minor defects. Then, after a smooth sanding, you€™ll have a perfect surface for successfully applying the paint that suits you best.