METALGUARD A40
Extended Life Antifreeze Additive Package

Product Description and Applications
METALGUARD A40 will take your extended life antifreeze to higher performance levels by providing you with a Hybrid Organic Acid Technology (HOAT) additive system, the next step after straight OAT antifreezes, such as Dexcool®. Straight OAT-type antifreezes are generally incompatible with conventional antifreeze utilizing inorganic salt inhibitor systems. However, Hybrid OAT formulations employ a carefully balanced combination of both carboxylate-based organic acid inhibitors and conventional inhibitors. As a result, antifreeze made with METALGUARD A40 can be mixed with all major brands of straight-OAT and conventional antifreezes without the precipitation and specification downgrading problems encountered with non-hybrid products.

METALGUARD A40 produces antifreeze that meets ASTM D 3306 and ASTM D 4985 specifications for conventional antifreeze as well as GM 6277M and Ford ESE 97B44-A for extended life coolants. Antifreeze/Coolant made with METALGUARD A40 will provide a service life of 5 years or 150,000 miles, and with the addition of WEBA Corp’ precharging supplemental coolant additive, METALGUARD SCA80, METALGUARD A40 will then meet Caterpillar EC-1 and TMC of ATA RP329/330. METALGUARD A40 is a non-phosphate, non-amine based inhibitor package which contains long-lasting phosphonocarboxylates and other proprietary ingredients to provide broad-range metal protection and guard the cooling system against corrosion and cavitation-erosion for many years. In addition, it contains additives to minimize hot surface scaling while also preventing heat transfer surface fouling due to minor oil leakage. This additive system can be used effectively with either propylene or ethylene glycol.

METALGUARD A40 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.

Product Specifications

As concentrated additive package:
Visual	Hazy, light amber liquid (or choice of dye)
Specific Gravity	1.139-1.155
pH	12.5-13.5
As concentrated Antifreeze (made with METALGUARD A40):
Specific Gravity	1.110-1.125
pH	9.8-11.0 (ASTM 7.0-11.0)
Reserve Alkalinity	6 ml min.
Freeze Point	-34°F max

METALGUARD A40 is formulated to meet these Industry standards:

• ASTM D 3306
• ASTM D 4985
• TMC of ATA RP 302A-1

Storage and Blending Instructions
Storage and Blending: Always store concentrated METALGUARD A40 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 A40 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 A40
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)	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.