This 250ml translucent grey stain block is a water-based coating designed to isolate stains such as wood knots, sap, tannin, smoke marks and more. It is suitable for application to both interior and exterior surfaces, providing a satin finish that allows the underlying surface to remain partially visible for easier inspection.
Often used on walls, ceilings, joinery or masonry, it serves as an undercoat before applying decorative finishes. Its quick drying time supports prompt re-coating, making it suitable for touch-ups, small repairs, or spot treatments where stain bleed-through protection is needed without waste.
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