Vacuum Pump Oil is recommended for the lubrication of vacuum pumps and air compressors. It is very stable at high temperatures and does not form gum or carbon deposits on the hot areas of the compressor or pump, thus minimizing ring sticking and obstruction of delivery valve ports. It is formulated from selected paraffinic base stocks treated with antioxidant, antirust and anti-wear additives. It is compatible with most types of rubber normally used in compressor and pump seals.