Last updated: April 12th 2018
Glycols are man-made liquid chemicals that are created from crude oil and natural gas, they are used in the production of many domestic products including polyester fabric, plastic bottles, antifreeze and engine coolants. Glycols are also used as a base for industrial heat transfer fluids, where an antifreeze function is required.
The world consumes approximately 20 billion litres of the various glycols each year, with about a fifth being used in North America. Demand for glycol continues to rise alongside increasing production of plastic based products and automobiles - especially in China.
As with all mass produced chemicals, commercial viability is increasingly subject to huge economies of scale and for this reason all small or older production plants are being shut-down. The last glycol production facility in the UK was at Wilton, Teesside and this ceased production in January 2010. All glycol used in the UK is now imported from Continental Europe, the USA and Middle East.
The main types of glycol used as a base for heat transfer fluid formulations are;
Propylene Glycol is available in two different forms; 1,2 Propanediol which is derived from crude oil and 1,3 Propanediol which is increasingly derived from vegetable feedstock.
Hydratech in cooperation with Evans Cooling Systems, Inc. of Connecticut, USA have formulated and patented several glycol blends that combine high thermal efficiency with being non-toxic. Please refer to our DTX range of products, available for use in all sectors.
Hydratech have the experience and expertise to provide you with the fluid that meets all the requirements for your systems
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