... vapour. icepoint :-60'C easy to boot . No water ,no corrosion,rust and scale.Remove rust and scale Waterless Nano Antifreeze Fluid , ( ... innner side of enginecylinder. no rust, no scale. traditional coolant contains water, leads to water scale and rustness. Won’t boil, high ... boilingpoint upto 190°C , no vapour pressure to the engine. ...