BYK W 969 is a monofunctional wetting and dispersing additive for mineral-filled systems. It improves the wetting and dispersing speed of fillers during dispersion and reduces viscosity, enabling higher filler content. BYK W 969 incorporates into the polymer matrix due to its OH functionality. It is suitable for applications requiring reduced emissions. As a result, BYK W 969 allows formulations to achieve enhanced properties such as improved durability and strength at reduced cost. The additive leads to considerably increased workability times. BYK W 969 is recommended for systems where a balance of enhanced strength, workability and reduced emissions is required.