It is said to block 90% to 96% of UV light to 390 nm with virtually no color affect on the bottle appearance.
Ampacet Corporation : UV barrier additive
Ampacet Corp. (Tarrytown, NJ) has developed an additive to protect the contents of blow-molded HDPE bottles from UV light. The additive is based on Ciba Specialty Chemical’s Shelfplus™ UV filter technology.
Feb 28th, 2002
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