METALGUARD® A70

METALGUARD A70 is more than just a conventional additive package which meets both automotive and some heavy-duty specifications. It utilizes proprietary technology to provide superior performance quite economically and possesses several advantages associated with organic extended life additive packages, including lower dissolved solids levels and the absence of some times objection able inhibitor components. METALGUARD A70 contains additives to minimize hot surface scaling while also preventing heat transfer surface fouling due to minor oil leak age.

The METALGUARD A70 additive package produces antifreeze that meets ASTM D3306, the specification for light-duty and automotive service and ASTM D4985, the specification for diesel and other heavy-duty applications. A proprietary combination of substituted tolytriazoles and phosphonocarboxylates controls corrosion of steel, cast iron and aluminum . The soft or yellow metals (copper, brass and solder) are protected by a mercaptobenzothiazole/tolytriazole system. METALGUARD A70 also contains antiscalants and dispersants to prevent inorganic salt scaling on heat exchange surfaces and organic fouling due to minor oil leakage into the cooling system.

Compliance with the many dissimilar antifreeze specifications in today’s market also make it important to know what your additive package does not contain. Many European automobile warranties require that nonphosphate antifreezes be used; for many Japanese vehicle warranties, silicate-containing antifreezes are not allowed. Many U.S. vehicle and engine producers do not allow amine-containing antifreezes to be used in their cooling systems. METALGUARD A70 was designed with all of these considerations in mind; it is a low silicate formulation (to meet ASTM D4985) and contains no phosphates or nitrogen-containing compounds, such as amines.

METALGUARD A70 can be blended with either ethylene or propylene glycol, and it can also be used with either virgin or high-quality reclaimed glycol from distillation units, reverse osmosis membranes, and most floccula-tion/filtration systems. WEBA recommends that you send a sample of any non-virgin glycols that you are considering for use with any of WEBA’s additive packages to a laboratory for testing and forward the results to us. We will help you determine if any pre treatment will be necessary prior to blending antifreeze to ensure compliance with all required specifications.

Specifications

• ASTM D 3306 
• ASTM D 4985
• ASTM D6210
• TMC of ATA RP 302A

Nearly all of OEM automotive light-duty ad heavy-duty specifications are patterned after or identical to the ASTM standard specifi cations given above. For individual OEM specification compliance contact your sales representative. Note that the ASTM specifi cations listed include the key performance tests (ASTM D1384, D4340, D1881, D2570, D2809).