Hydrad HBC Aluminium trihydroxide 21645-51-2 Huber Engineered Materials Flame retardant / Fire retardant >> Aluminium trihydrate Coatings >> UV / Radiation Curing Architectural / Decorative General Industrial /Maintenance Insoluble in water The principal properties alumina trihydrate (ATH) imparts are flame retardance and smoke suppression. Of the common products used in plastics and other polymers, only ATH has flame retarding and smoke suppression benefits as well as being an economical resin extender. Aluminium Trihydroxyde (ATH) based pigments provide not only flame retardance and smoke suppressance, ATH also provides outstanding chemical resistance, very high whiteness, superior scrub resistance and durability flame retardance and smoke suppression radiation cure industrial coatings industrial architectural coatings Aluminium trihydroxyde (ATH) based pigment. Used as a resin extender and to provide superior smoke suppression and flame retardance in radiation cure industrial coatings and industrial architectural coatings. Provides outstanding chemical resistance, very high whiteness, superior scrub resistance and durability.