HOW DO I FIND OUT THE SOLUTION PERCENTAGE (GLYCOL FREEZE POINT) OF AN EXISTING SYSTEM?
The easiest way is to use a Refractometer, in fact many breweries and wineries have instruments that will provide a reading in degree brix. Although propylene glycol doesn’t contain sugars, it affects the refractive index in a similar fashion. Most chiller system manufacturers would also be happy to test the freeze point/concentration of solution samples that are sent to them. WHERE DO I PURCHASE GLYCOL FROM? Suppliers: A) A) Pro Refrigeration Inc. is an authorized distributor of Safe-T-Therm Propylene Glycol Heat Transfer Fluid. Safe T Therm is a USP Grade Propylene Glycol Solution that not only contains an orange colored die to help identify leaks in your system, but also rust inhibitors. We can ship the product from any of the seven warehouses located across the country. For a quote please call Pro at 800-845-7781, or visit the website at www.prochiller.com. B) DOW Chemical Corporation Phone: (800) 447-4369 Notes: Dow also manufactures a product with rust inhibitors. C) Most Major C
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