AQUA BLOCK is a transparent water-based stain-blocking primer suitable for all types of soft and hard woods. It is applied as a sealer on resinous and oily wood surfaces with knots before applying water-based varnishes and paints.

It has the following features:

• Prevents the appearance of stains from the resins of knots, oils, and tannin of the woods.
• Does not affect the color of the woods.
• Dries quickly and fills evenly.
• Seals stains from nicotine, smoke, markers, and dirt on interior walls and ceilings.
• Can be painted over with all water-based paints and varnishes.