Anyone ever try Mark-V's Fallout Powder? Appears to be a 1 step process.
Here's the tech sheet on it:
Fallout Powder
Description and Uses:
The best powdered fallout remover available. Seven ingredients (four acids and three surfactants) are blended together to give a broad spectrum of cleaning ability.
Use Fallout Powder to remove industrial fallout, rail dust, heavy road film, bird and insect deposits and more from autos, trucks, boats and painted structures. Fallout Powder will strip away layers of baked on grime in minutes, leaving the surface properly prepared for polishing.
Advantages:
• Removes all of the fallout, even the part embedded in the paint.
• Mixes easily even in cold, hard water.
• Used by BMW, American Honda and Acura.
• Rinses easily and completely.
• Not necessary to wash vehicle with soap and water after use.
• Broad spectrum cleaners clean more than just rail dust.
• Very concentrated and economical.
Special Tips and Precautions:
• Fallout removal should be the first step in any complete detail, as it properly prepares the surface for polymer bonding.
• Dwell time is critical. The larger the particle size of the rail dust, the longer Fallout Powder must remain on the painted surface. Usually 10-20 minutes.
• Do not mix with other products.
• Make sure customers are equipped with gloves, boots and rubber aprons.
• This product will make hands severely dry. Be sure to inform customer to wear gloves.
• Do not allow to dry. Water must be present for Fallout Powder to work properly.