SONGNOX® PQ is a tetrakis(2,4-di-tert-butylphenyl)[1,1-biphenyl]-4,4’-diylbisphosphonite. Acts as a secondary antioxidant. Protects the polymer during processing and provides color protection. It is... view more

SONGNOX® PQ SB by Songwon is a tetrakis(2,4-di-tert-butylphenyl)[1,1-biphenyl]-4,4’-diylbisphosphonite. Acts as a secondary antioxidant and stabilizer. It has a semi-bead form and is dust free... view more