METALGUARD A65
Precharged Extended Life Additive Package "Global" Type Formulation For use with Ethylene and Propylene Glycol

Product Description and Applications
METALGUARD A65 is a fully-formulated, precharged extended life additive package developed specifically to allow the antifreeze producer to meet specifications for the new "Global Extended Life" category of antifreezes. METALGUARD A65 is a hybrid organic acid technology (HOAT) additive system, containing both carboxylic acids (OAT technology) and azoles/inorganic salts (conventional technology). While OAT-only antifreezes have compatibility problems with conventional antifreeze formulations, HOAT formulations are compatible with OAT, HOAT, NOAT (nitrited organic acid technology) and conventional azole/inorganic salt type antifreeze/coolants.

METALGUARD A65, when blended with ASTM antifreeze grade glycol/water in accordance with WEBA Corp’s instructions, will produce an antifreeze concentrate which contains a minimum of 2400 ppm nitrite, or 1560 ppm total nitrites plus molybdates, with at least 600 ppm of each (product can be ordered with molybdate/nitrite blend as METALGUARD A65M). The antifreeze/coolant will also have a pH of 9.0-10.5 (see specifications below), a minimum reserve alkalinity of 6 ml and a maximum silicate content of 250 ppm. It will be phosphate-free (<15 ppm) and nitrosamine/triethanolamine-free.

Antifreeze made with METALGUARD A65 will be suitable for passenger cars, vans, SUV's, light trucks and heavy-duty vehicles. It will demonstrate outstanding aluminum corrosion control in addition to superior protection for copper, brass, solder, steel and cast iron. METALGUARD A65's substantial nitrite/molybdate content will also control pitting/cavitaion damage to diesel engine wet sleeve cylinder liners. In heavy-duty applications, antifreeze made with METALGUARD A65 will have a service life of 600,000 miles with the addition of an additive booster at 300,000 miles. At every oil change the antifreeze should be checked to be sure that the pH is in the proper range and that the sample is free of significant precipitates, suspended solids, cloudiness or contamination.

METALGUARD A65 can be used effectively with either ethylene or propylene glycol. This extended life additive system can also be used with either virgin or high-quality reclaimed glycol from distillation units, reverse osmosis membranes, and most flocculation/filtration systems. WEBA Corp recommends that you send in sample of any non-virgin glycols that you are considering for use with any of WEBA Corp's additive packages to a laboratory for testing, and send us the results. We will help you determine if any pretreatment will be necessary prior to blending antifreeze to ensure compliance with all required specifications.

METALGUARD A65 is formulated to meet these Industry standards:

• ASTM D 3306
• ASTM D 4985
• ASTM D 6210/11
• TMC of ATA RP329/330/338

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

Product Specifications

As concentrated METALGUARD A65:
Visual	Hazy, light amber liquid or choice of dye
Specific Gravity	1.280-1.340
pH	12.4-13.6
As concentrated Antifreeze (made with METALGUARD A65):
Specific Gravity	1.120-1.125
pH	9.0-10.5  (ASTM 7.0-11.0)
Reserve Alkalinity	6 ml min.
Freeze Point	-34°F max

Blending and Storage Instructions
Always store concentrated METALGUARD A65 additive package at a temperature of 60ºF or higher. To make antifreeze concentrate (97.8% glycol, 2.2% additives), first charge the desired quantity of glycol to the blending tank. The glycol should first be charged to the blending vessel at a temperature of 50ºF or higher, and at a pH of 7.0-9.5. Maintain this temperature throughout the blending procedure. Based on the quantity of glycol being treated, add 2.2% by volume of METALGUARD A65 while agitating or circulating glycol (two 55 gallon drums per 5,000 gallons of glycol). Continue to agitate for 30 minutes after all of the additive package has been transferred into the blending vessel.

Water Quality And Dilution: When antifreeze concentrate is diluted to 50% by volume with water, the water of dilution must be of acceptable quality. Deionized water is the best to use, but other sources of water are acceptable as long as they contain no more than 350 ppm total hardness measured as calcium and magnesium compounds. Higher hardness levels may cause excessive inhibitor consumption, scale deposits and metal pitting.

Making Claims for Antifreeze/Coolant Blended with WEBA Corp's Additive Packages
The specifications listed in this bulletin are based on antifreeze produced with WEBA Corp's additive packages, virgin glycol and deionized water. Antifreeze blenders must demonstrate compliance with ASTM or other specifications with their antifreeze/coolant, because the quality of the glycol and water used is as important as the additive package. Note that OEM's have placed limits on the percentage of recycled glycol that can be used in factory fills as have other purchasers of antifreeze. Glycol quality specifications have also been established. Obtain copies of the specifications that you wish to meet, thoroughly read them and conduct any required tests, prior to stating that the antifreeze produced meets the specifications. WEBA Corp can provide assistance locating the necessary specifications/standards. To confirm that your finished products meet the required industry specifications, WEBA Corp recommends that you test your glycol and finished products at an accredited laboratory. Glycol should be tested for conformance with ASTM E1177 and finished products should be tested for the ASTM performance tests listed on this product bulletin. WEBA Corp can assist your company in preparing your samples for testing with pre-tests performed at the accredited laboratory. WEBA Corp will warrant our additive packages only if the recommended blending procedures are properly followed. In addition, the glycol or other base fluid used with our additive systems must meet industry or ASTM standards unless specifically exempted in our literature.

Ordering Information

Product Code:	METALGUARD A65
Quantity options (US)	5 gal. Pail, 55 gal. Drum, 275 gal. Tote, Bulk
Quantity options (outside US)	205 L Drum, 1000 L Tote, Bulk
Dye	Yes
Dye Options (Color)	Yellow-gold, Orange, Red or custom dye (see chart)

Quality Control
WEBA Corp additive packages are tested for conformance with product specifications and industry standards. A laboratory analysis is conducted for all production lots and shipments and a certificate of analysis is available to customers who require them.

Technical Support
WEBA Corp can answer questions about ASTM standards and industry specifications as well as help with many other questions relating to antifreeze and glycols. To confirm that your finished products meet the required industry specifications, WEBA Corp’s laboratory will help you with problem solving and testing associated with any products containing our inhibitor package.