Clear Masking liquid H2O H2O Masking Liquid is a faster, easier way to mask glass when painting French doors and multi-paned windows. H2O Masking Liquid can be applied by brush, roller or spray gun. It removes quickly and easily from glass. H2O masking fluid can also be used as a primer on properly prepared sashes and woodwork. It is white in color, becoming clear as it dries.
Suitable for the following surfaces: - Bare wood, unless a stain is to be applied afterwards - Aluminum - Previously painted Please note that the product is not suitable for the following surfaces: - Stained glass - Tinted, frosted, coated or textured glass - Plexiglas - Bare metal