Radiopaque, non-staining, non-irritating with excellent thermal insulation. Very long working time and excellent lubricating qualities. Available in premeasured capsules that eliminate waste and insure the correct quantity for filling or economical bulk powder. Ideal for use with thermal plastic gutta percha systems. (Powder: 42% zinc oxide, 27% staybelite resin, 15% bismuth subcarbonate, 15% barium sulfate, 1% sodium borate anhydrous; Liquid: ally gualacol).