SLSA Coarse MB is a anionic base and co-surfactant and has 65% washing active substances (WAS). It forms a stable foam. Since this powder is in coarse form, it is much easier and dust-free to use. Nevertheless, please be sure to wear a dust mask when processing. Mix it in at least 5 times the amount of water, heat it to over 80°C, stirring occasionally, so that it slowly dissolves clear.