GC Cavity Conditioner 5.87 mL Bottle. Deep-blue tint for better visibility. 20% Polyacrylic Acid with 3% Aluminum Chloride Hexahydrate conditions tooth bonding surfaces by removing smear layer and debris form tooth surfaces and sealing dentin tubules to help eliminate sensitivity. Apply conditioner for 10 seconds prior to using glass ionomer restoratives, bases, liners or core build up materials. Rinse thoroughly and blot dry before using glass ionomer. 5.7 mL bottle.