Irgastab FS 301 is a system composed of a phosphite processing stabilizer Irgafos® 168 and a high molecular weight hydroxylamine Irgastab FS 042. It is designed specifically as a powerful non-phenolic processing stabilizer system with excellent color control, compatibility, low volatility and high resistance to extraction.

Applications

Irgastab FS 301 is used as a processing stabilizer in polyolefin applications where low color and low gas fade discoloration are required. Irgastab FS 301 is particularly suited for PP fiber applications such as carpets, hygienic nonwovens and apparel as well as in polypropylene moldings (such as automotive TPO’s and outdoor construction applications) where high UV stability is required. When post-processing thermal and /or UV stability is required, Irgastab FS 301 should be used in combination with a hindered amine stabilizer.

Features & Benefits

Irgastab FS 301 provides outstanding processing stability to polyolefins while virtually eliminating gas fade discoloration that may occur when phenolic systems are used. When used in combination with a Uvinul®, Chimassorb® or Tinuvin® hindered amine stabilizer, the system also provides both long-term thermal stability as well as a higher level of light stability in comparison to phenolic processing stabilizer systems. Furthermore Irgastab FS systems also enhance the ability of hindered amines to act as light stabilizers.