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Product Data Castrol Alusol AU 39 Premium Aluminum Machining Fluid Description Castrol Alusol AU 39 is a semi-synthetic fluid recommended for aluminum machining of automotive components. Castrol Alusol AU 39 provides the performance of heavy duty soluble oils without the unpleasant shop environments and high usage rates of soluble oils. Castrol Alusol AU 39 is formulated with an extreme pressure additive to provide maximum performance in the most demanding applications. The tight, stable emulsion of Castrol Alusol AU 39 provides excellent tramp oil rejection and product stability. Performance Benefits Effective wetting properties maintains clean machines and components Stable fluid suitable for a wide range of water conditions Inhibits microbial growth to extend fluid life in central systems and individual sumps Low foaming in all water conditions Formaldehyde-free to comply with health and safety regulations Metal Safety Castrol Alusol AU 39 is recommended for use with automotive aluminum alloys. It can also be used in heavy-duty ferrous operations. Consult your Castrol Account Manager for questions regarding compatibility. Recommended Applications & Dilutions Grinding: 4 – 6% Machining: 5 – 12% Typical Characteristics Appearance of concentrate: Hazy yellow fluid Appearance of emulsion: Tight emulsion, stable pH of emulsion @ 5%: 9.2 – 9.6 Specific gravity @ 60o F (16o C): 0.96 – 0.98 Bulk density (lbs/gal): 8.0 Chlorine: Yes Nitrites: No Phenols: No Castrol Industrial Americas 150 W. Warrenville Road Naperville, IL 60563 Tel (877) 641 1600 Fax (877) 648 9801 Castrol Alusol AU 39 – 17-May-04 Page 1 of 2 Castrol Industrial Americas 150 W. Warrenville Road Naperville, IL 60563 Tel (877) 641 1600 Fax (877) 648 9801 Castrol Alusol AU 39 – 17-May-04 Page 2 of 2 Product Data Concentration Control % Concentration Refractometer Reading 3.0 3.0 5.0 5.0 7.0 7.0 10.0 10.0 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 Concentration by Volume Refractomerter Reading All reasonable care has been taken to ensure that the information contained in this publication is accurate as of the date of printing. However, such information may, nevertheless, be affected by changes in the blend formulation occurring subsequent to the date of printing. Material Safety Data Sheets are available for all Castrol Industrial North America Inc. products. The MSDS must be consulted for appropriate information regarding storage, safe handling and disposal of a product.