Technical Bulletins > Kilfrost DF Plus (88)®

1/1/07 - Storage and Handling Guidelines Type I Propylene Glycol Aircraft Deicers

Customers frequently ask if material in their storage, handling, and application equipment is compatible with propylene glycol aircraft deicers. There are technical differences between propylene glycol deicers from various producers. The following information applies to Kilfrost DF Plus (88)® Type I, which contains a minimum of 88% propylene glycol, by weight.

For fluids at ambient temperatures, stainless steel, and cross-linked polyethylene storage tanks are recommended. Mild carbon steel can be used. Piping should also be of steel or XLPE. Natural rubber seals and Neoprene should be avoided as they tend to swell with glycol/water mixes. Use gaskets, seals, and elastomers (such as PTFE, Viton, EPDM, Hypalon) that are compatible with propylene glycol.

HANDLING
Avoid contact with skin and eyes, and breathing mists/vapors when spraying. Store in tightly sealed containers, away from direct heat and strong oxidizing agents. For recommendations on tanks, piping, pumps, bulk, and/or heated storage, contact Cryotech.

DELIVERY
The actual discharge of bulk material to storage is normally carried out under the supervision of a representative of the customer. However, before opening the discharge valve, the tanker driver should confirm that the vehicle is coupled to the correct storage tank and that it has sufficient free capacity to accept the delivery. The delivery note includes a declaration that the installation is ready to receive the delivery, which is signed by the customer's representative before discharge.

The driver is responsible for ensuring that the discharge valve and any delivery hoses carried by the vehicle are clean and will not cause contamination in the product.

If customers request sampling at the time of delivery, then the driver and the customer's representative should take two samples of the product, from the top manhole, 2-3 feet below the liquid surface, prior to discharge. These must be labeled with the product name, delivery reference, and date. The customer retains one sample. The other sample must be returned to Cryotech, Attn: Lab, at 6103 Orthoway, Fort Madison, Iowa 52627. All samples should be retained for two years.

The delivery note must be signed by the customer's representative on completion of the discharge.

STORAGE CONSIDERATIONS
Totes should be stored out of direct sunlight.

AVOID PROBLEMS...
Do not mix propylene glycol fluids from different manufacturers, except at approved concentrations.
Do not mix propylene glycol fluids with ethylene glycol fluids.
Keep tank and truck labels current.

Contact Cryotech for further details at (800)346-7237.