Tikkurila Akrostop Sealing Primer is a single-pack, water-based stain-blocking primer designed for both new and previously painted surfaces.
Ideal for concrete, plaster, brick, putty, fibreboard, plasterboard, wood, panel, and log surfaces, it effectively prevents stains from nicotine, soot, ink, and dried water damage from bleeding through. Not suitable for iron or steel, and does not block resin seepage.
For best results apply using a brush, roller or spray to a clean, dry surface.