METALGUARD® A81

METALGUARD A81 is a conventional, heavy-duty, fully-formulated and SCA precharged additive package that allows antifreeze producers to make a finished product that meets the most demanding industry specifications including ASTM D6210 and RP 329/330 of the Technology and Maintenance Council of the American Trucking Association. METALGUARD A81 contains the initial charge of supplemental coolant additive, meeting the requirements for pre-charged coolants. A81 contains a minimum of 2400 ppm nitrite in antifreeze concentrate (1200 ppm in pre-diluted coolant) which is one of the requirements to meet ASTM D6210.

As sophisticated, multi component additive system, METALGUARD A81 employs synergistic combinations of inhibitors to provide you with the best corrosion protection available for heavy-duty engine cooling systems, whether in vehicles or stationary engines. It is a very durable additive package with a strong reserve alkalinity, and a substantial combination of inorganic acid salts to protect steel, cast iron, aluminum and solder. Copper, brass and other copper alloys are protected by a high level of azoles. METALGUARD A81 is a silicate-free making it ideal for heavy-duty stationary engine applications. The formulation meets ASTM D4985 and contains anti-scalants and dispersants to prevent scaling and fouling of heat exchange surfaces.

Specifications

Formulated to meet:
• ASTM D3306
• ASTM D4985
• ASTM D6210
• TMC of ATA RP329/330