Hoat coolant and oat series#
Santa - 1977 Series 3 - new chassis, tub, brakes Hand built and available in a range of sizes and Shore hardness, our hoses resists hardening, cold leakage, high and low temperatures, varying pressures and is manufactured to resist OAT coolants and additives. Silicone out performs conventional, organic hose materials, maintaining performance and flexibility over a wide temperature range, giving longer life and optimum reliability. Our OAT grade hose, also offers typically 30% higher burst pressure than standard coolant hoses. Our OAT grade hose will operate in the range 150☌ up to +230☌, making our OAT hose suitable for use in higher, under bonnet temperatures. LHSS - OAT Grade, offers an option between EPDM, blue coolant hose and fluoro-silicone hose, both from a cost and performance aspect.The construction of the OAT hose eliminates some of the potential failure points of a fluoro-lined and ‘standard’ blue hose while out performing EPDM hose.LHSS manufacture a high grade OAT resistant hose which also withstands much higher temperatures than conventional coolant hoses. However, they can have an effect on certain types of reinforcement fabric used in the hoses. Traditional ethylene glycol coolants have little or no effect on hoses under normal working conditions. The HOAT coolants offer rapid protection, long life (150,000 miles) and prevent clogging of water pumps etc. Hybrid coolants (HOAT) offer a blend of the two benefits by using a moderate level of salts such as silicates or borates. Cost savings can therefore be significant. The initial cost of OAT coolants is also generally lower than that of ethylene glycol coolant. Coolant life is typically between 150 – 300,000 miles. However, once the protective layer is laid down, the inhibitors deplete only very slowly. Pure OAT coolants take longer to protect the metallic components in the system. Typical coolant life can be 30 – 50,000 miles. However, the inhibitors deplete rapidly meaning that frequent changes of coolant are needed to maintain effectiveness.
Hybrid (HOAT) coolants are generally moderately ‘silicated’ for improved aluminium protection.Ethylene glycol coolants offer rapid protection of cooling system components. The mixture is far less environmentally friendly than a typical pure OAT coolant mix which usually contains none of the above. then again might go down the Evans Power Cool 180° (Waterless Engine Coolant) route Įthylene Glycol coolants usually contain compounds such as amines, phosphates, nitrites, borates and/or silicates. I'm just waiting for a price for TD5 hoses that are OAT compliant. So basically, the "blue" silicone hoses you can buy probably aren't OAT compatible, certainly the multi colour ones available from lhss aren't, they're for Etheylene Glycol coolant.
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