Summary:

This recommendation details methods for manually cleaning steel parts, fabrications, machinery, equipment and other components. The methods are suitable for use on all washable surfaces to clean and prepare surface for paint. Rinsing is not required.

Equipment:

• Plastic Pail or Container
• Measuring Cup
• Shop Cloths

Method:

• Mix 32 oz of Aero-Green Paint Prep for 96 ounces of water for a 1:3 dilution ration.
• Dip a Clean Cloth into the diluted Cleaner.
• Wring out cloth so that it does not drip when held up but is still very damp.
• Wipe part clean with the saturated cloths, turn cloths frequently for best results.
• Using a second clean cloth wipe the area dry. The part is ready for paint or.

Troubleshooting:

• Flash rust on hot rolled steel is usually caused by parts remaining wet too long after washing.
• Insufficient cleaning may result from low solution temperature, low solution concentration and/or lack of solution contact with surface.
• Avoid white streaking on clean parts by reducing solution temperature, strength, and/or wash time.

Tricks of the Trade:

• Prevent Flash Rust- When steel parts remain wet too long after cleaning, flash rust develops. This can occur even if the cleaning solution contains a rust inhibitor. To avoid flash rust, dry parts immediately after cleaning.
• Synthetic Abrasive Pad- Use a synthetic abrasive pad on tough soils like welding smoke film.
• Cleaning Tests- After cleaning, lubricants, oils and coolants will show up as dark spots on the surface and also may show a sheen. Heat scale is less visible. Use the following tests to determine if the contaminants have been removed:-Spray water on questionable areas and watch for "water-break" or beading. If the water does not sheet over the surface, oil or other lubricants remain on the surface and must be removed before coating.
• Insufficient cleaning may result from low solution temperature, low solution concentration and/or incomplete spray.