Effective Water-Based Cleaning is controlled by Five Key Variables:

• Choice of Cleaner- Aero-Green  is a proven effective cleaner Degrease that quickly removes dirt, grease, oil, hydraulic fluids and out performs Solventswith environmentally preferred chemistry.
• Time- Length of time the cleaning solution is in contact with the surface
• Agitation- Impingement of the cleaning solution on the surface, i.e., scrubbing, force of high-pressure spray or immersion into cleaning baths designed to clean by soaking, agitation, spry or ultrasonic’s.
• Concentration- Strength of the cleaner.
• Temperature- The temperature of the cleaning solution. Each +18°F increase in temperature doubles the cleaning rate.

Summary:

Recommendation for using hot water pressure washing techniques for: airport exterior building, architectural structures, garages, parking areas, walk ways, fleet maintenance, farm equipment, concrete floors, machinery and equipment. The method described below is "one-step cleaning". Parts are not rinsed with water following cleaning. Once all oils and other contaminants have been removed during washing, a water rinse is not required as "paint compatible."

Equipment:

• Hot water pressure washer - 1,500 to 3,000 psi
• Injector which allows high pressure injection 15° Wand Tip (routine cleaning)
• 0° Oscillating tip (rust, weld spatter, labels)
• Quick-Disconnect fitting for the wand tip

Method:

• Set temperature to 160°F at the wand tip.
• Adjust injector so that 12.0 to 2.0 oz. of detergent is injected per gallon of water.
• Opening the injection valve 1/4 turn, is usually sufficient.
• Adjust wand tip for horizontal fan sprayBegin at the top of the part and spray down using overlapping passes forcing soil down and off the part. Hold tip within 12" of the surface and at a 45° angle downward to "chisel" off soil.
• Once clean, Rinsing is not required. Air-dry or force dry the part.

Tricks of the Trade:

• Avoid flash rust after washing by drying parts immediately.
• For castings, blasted steel and other highly rust-prone surfaces if a primer or paint is not applied to the surface immediately after cleaning, a rust inhibitor must be sprayed onto the surface to prevent rusting.
• To remove flash rust from the surface that has been cleaned, use Hi-Lite Solutions HF-10 Rust Remover.
• Parts can be painted without rinsing off Hi-Lite Solutions HF-10 Rust Remover.
• Avoid white streaking on clean parts by reducing solution temperature, strength, and/or wash time or by drying with a clean dry cloth

To Determined Injection Rate:

• Fill a measuring cup with water.
• Place the injector foot into measuring cup.
• Trigger the wand at high pressure into a 5 gallon pail until the pail is full.
• Determine how many oz. of water have been drawn from the measuring cup.
• Divide the oz. drawn from the cup by 5 to determine the oz. /gal. Injection rate.
• Adjust the injection control valve to provide the oz. per gallon of detergent req