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Our 100% propylene glycol is 100% biobased. The proprietary technology uses a catalytic process known as hydrogenolysis to readily convert glycerin into propylene glycol. The reaction between glycerin and hydrogen takes place at high temperature and pressure over a unique catalyst to produce propylene glycol and water. As a result, propylene glycol is then purified using proprietary separation technology. PG is very low in toxicity and is listed as GRAS (generally recognized as safe) for use in food and pharmaceuticals. In fact, from a toxicological point of view, alcohol is more toxic than the same amount of propylene glycol. Studies have also shown that propylene glycol is neither persistent nor does it bio-accumulate and is therefore readily biodegradable. There are no hazard classifications or labeling of PG. Propylene glycol is very versatile. It is a solvent, an emulsifier, a binder, attracts water, reduces freezing point, increases boiling point and does not react with other chemistries. If you are looking for PG with an inhibitor, please try BioFROST or BioFROST Eco. If you want to be as safe and green as you can, please choose one of our many glycerin based products. Designed for industrial and environmentally sensitive antifreeze, coolant/heat transfer and secondary refridgerant applications, PG is used in several industrial heat transfer/antifreeze applications such as: Closed Loop Systems Waste Heat Recovery Chillers Solar Systems Floor Heating Systems HVAC Geothermal Systems Hydrostatic/Pressure Testing
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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