Hycite® 713 is a fine magnesium/aluminium-hydrotalcite. It is an acid scavenger which is used as a co-stabilizer for polypropylene and other polyolefins. Its effect is due to the efficient neutralization of residual quantities of acids liberated by catalysts or other decomposition products. It reduces corrosiveness of the polymers by absorptive immobilization of anions, especially chloride. It offers greater absorption capacity for acids at the same dosage level, causes lower water carry-over and shows no bleed-out effect. The excellent dispersibility in polymers is achieved by an exceptionally high fineness of the material and a special surface modification. It can be used for color critical applications and for retardation of phosphite hydrolysis. It can thus be used in transparent films without restrictions. Hycite 713 can also be used with standard processing stabilizer systems, such as Irganox® B-blends. The recommended dosage levels are between 0.02-0.05%.