1968-02-01

The Effect of Ethylene Glycol and Methoxypropanol-Based Coolants on Elastomers 680496

The effect of different coolants on common hose and seal formulations currently in use in heavy-duty engines has been studied. Water, ethylene glycol, and methoxypropanol coolants have been studied in contact with seven different types of elastomers. A brief discussion of the theory behind rubber swell is presented, as are laboratory and field test data. The data indicate that seasonal failure of hoses and seals may be caused by a sudden change in the composition of the coolant.

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