Maskol is a rubber solution that can be applied to surfaces to prevent them being painted. It's ideal as a liquid mask - making sure paint does not get into curved lcoatoins or around gaps in amsking tape. When the paint has dried the Maskol can be simply peeled off. Substrate: Common plastics used to manufacture model kits including polystyrene and ABS and a wide variety of other applications including glass. Application: Brush only. Apply to surface, allow to dry and paint over. When paint is dry peel off the Maskol. Drying Time: 15-20 minutes. How to Clean: Wipe away using a damp cloth.