What is (wet) scrubb resistance of wall paint?

Scrub resistance refers to the ability of a wall paint to withstand repeated (wet) scrubbing or cleaning without showing signs of damage or degradation. It is an important property for interior paints, particularly those used in high-traffic areas or areas prone to dirt, stains, or smudges, such as kitchens, bathrooms, hallways, and children’s rooms. Scrubbable paints are designed to resist wear and tear from cleaning, making them durable and long-lasting.

The (wet) scrub resistance (WSR) of wall paint is typically measured using standardized test methods, such as the ASTM D2486 or ASTM D4213 tests, which involve scrubbing a coated panel with a brush or abrasive pad using a specified amount of pressure and a defined number of scrub cycles. The performance of the paint is then evaluated by assessing the appearance of the coating, such as changes in gloss, color, or film integrity, after scrubbing.

The scrub resistance of wall paint can vary depending on various factors, including the formulation of the paint, the quality of ingredients used, the thickness of the applied coating, and the surface condition of the substrate. Higher-quality paints with advanced formulations and better raw materials generally tend to have better scrub resistance.

The scrub resistance of wall paint is typically specified by paint manufacturers and can vary among different paint products. It is often indicated on paint cans or technical data sheets as a rating or class, such as “scrubbable”, “washable”, or “good”, to help consumers and professionals choose paints that meet their specific needs for durability and performance. It is important to follow the manufacturer’s instructions for proper surface preparation, application, and cleaning to ensure optimal scrub resistance and overall paint performance.