METALGUARD® A65

METALGUARD A65 is a fully formulated, extended service life additive package that contains the initial charge of supplemental coolant additive (SCA). It was developed to allow the antifreeze producer to meet the specifications in the extended service life category of antifreezes. METALGUARD A65 is a hybrid and nitrited organic acid technology (HOAT) additive system, containing both carboxylic acids (OAT technology) and azoles/inorganic salts (conventional technology).

METALGUARD A65, when blended with ASTM antifreeze grade ethylene glycol/water in accordance with WEBA’s blending instructions, will produce an antifreeze concentrate which contains a minimum of 2400 ppm nitrite. It is phosphate, 2-ethylhexanoic acid, amine/triethanolamine-free, and low-silicate formulation to meet ASTM D4985.

Antifreeze made with METALGUARD A65 will be suitable for older passenger cars, vans, SUV’s, light trucks and heavy-duty vehicles. It demonstrates outstanding aluminum corrosion control in addition to protection for copper, brass, solder, steel and cast iron. A65’s substantial nitrite content will also control liner pitting/cavitation damage to diesel engine wet sleeve cylinder liners. In heavy-duty applications, antifreeze made with A65 will have a service life of 600,000 miles with the addition of an additive booster (METALGUARD A65-EXT) as needed based on the routine coolant maintenance practices. In off-road service, coolant made with A65 will provide a service life up to 12,000 hours, or 6 years, whichever comes first. At every oil change, the coolant should be checked to be sure that the pH and nitrite are in the proper range. In addition, the sample should be checked to ensure it is free of significant precipitates, suspended solids, cloudiness or contamination.

Specifications

Formulated to meet:
• ASTM D3306
• ASTM D4985
• ASTM D6210
• TMC of ATA RP 329/338