Coolant Storage and Handling
Recochem coolant products are easy to store and handle. Although coolant is not flammable, it is recognized as combustible and must be stored and warehoused accordingly. In North America, combustible liquids must be stored and warehoused in accordance with the requirements outlined in the NFPA 30: Flammable & Combustible liquid Code, published by the National Fire Protection Association.
Bulk coolant fluids are commonly stored and handled in steel equipment. These products are compatible with any other commonly used materials of construction. Tanks that have been lined with baked phenolic or epoxyphenolic coatings have been used, as have fibreglass reinforced plastic tanks and stainless steel tanks. Aluminum has been used at low temperatures (about 104°F or 40°C, maximum), but is not recommended where the aluminum container is heated. Zinc or galvanized iron is not recommended, and copper or copper alloys may cause product discoloration. Galvanized iron and tin or tinned steel should not be used.
An inert gas in the vapour space of storage tanks is not generally required since engine coolants have high boiling points, and the vapours in the tanks are relatively non-flammable. Since glycol based engine coolants are hygroscopic, consideration must be given to the fact that the potential for moisture pickup can occur and measures should be taken to minimize this in those environments that are susceptible. Exposure to air and oxygen rich environments should also be minimized in order to prevent oxidative degradation that can lead to acid formation. Acidity enhances iron pickup from steel vessels. Typically inert gas blanketing on storage tanks prevents both issues or desiccate units can be installed.
Coolant concentrates and super concentrates, either glycol or water based have higher freeze points compared to pre-diluted coolants. In cold climates in which bulk fluids are stored, consideration must be paid to tanks and transfer lines to ensure freezing does not occur. Generally this only begins to be of concern if the temperature of the material approaches -13°C (9°F) or less. All coolant products are not adversely affected by freeze thaw cycles, except for certain super concentrate products. All are safe to use if exposed to such cycles.
We provide current Material Safety Data Sheets that may contain further storage and handling information for all of our engine coolant products.