Food Grade vs Automotive Grade
The main difference is that the food grade gylcol is made to be used as a "winterizer" in potable water lines such as those in RV's and Marine or boats or in our case, in systems which will be used near food products such as around beer lines in a insulated and wrapped trunk. As Scott Zuhse states, Ethlene glycol is poisionous and should not be used and Propylene Glycol can be used in a food zone. I always recommend using the appropriate manufacture's recommeded brand and ratio mix since the manufactures warranty for all systems is usually tied in to proper grade and brand usage of glycol. Granted the price may be high but lets not forget that the system was engineered using that particular glycol. Hopes this helps.
|