*Wingstay 29 is the choice in black and noncritical color compounds. Mark 308/1.00 In colored critical compounds, Irganox 1076 is the better choice. Plasthall 550 or 670/75.00 PVC (K=70)/97.00 Mark 974-A/2.00 Stearic Acid/0.50 Paraplex G-62/5.00 Chemigum P83/33.00 Wingstay 29*/1.00