Stain blocking paints are used to block stains on walls and ceilings before a topcoat is applied. This prevents the stains from bleeding through and interfering with the topcoat.
Stain Lock Sprayable Primer is a water based primer and sealer that is suitable for a wide range of surfaces. It is designed to block stains on both interior and exterior surfaces and can be applied by spray.
Shellac Prime-All is a shellac based primer designed for use on difficult stains and odours. It is ideal as a sealant for tar, bitumen and creosoted surfaces. In addition, it is also suitable for timber and wood, plaster, cement, brickwork and most plastics.