FREICLEAN 62 is a liquid, silicated alkaline cleaner for aluminum. The cleaner may be used for spray or immersion applications. FREICLEAN 62 is designed to remove oil and lubricant soils. Most oily soils will float to the surface of the cleaning solution for skimming.
Liquid, silicated alkaline cleaner for aluminum. The cleaner may be used for spray or immersion applications. FREICLEAN 62 is designed to remove oil and lubricant soils. Most oily soils will float to the surface of the cleaning solution for skimming.
FREICLEAN 62 may be used at concentrations of 2-10% by volume depending on the soil to be removed. The normal processing time is 30-90 seconds for spray applications and 3-10 minutes for immersion applications. Normal operating temperatures are between 140–170°F, but the temperature may vary between 90–180°F depending on the application.
The FREICLEAN 62 solution may be monitored by titration of the Free alkali as follows:
Pipet a 10 ml sample of the FREICLEAN 62 solution into a suitable beaker or Erlenmeyer flask and add 4 drops of Indication Solution 3 (Phenolphthalein). Titrate the pink solution with Testing Solution 20 (0.1 N H2SO4) until the pink color is just removed from the solution.
A FREICLEAN 62 solution prepared at 5 % by volume will have a titration reading of approximately 8.5 points Testing Solution 20.
Addition of 6.0 gals (57 lbs.) of FREICLEAN 62 per 1000 gals will raise the titration by 1 point.
FREICLEAN 62 weighs 9.5 lbs/gal. and has a specific gravity of 1.140
CAUTION: This material is strongly alkaline and may cause burns to skin and eyes.
Drawing, Stamping, Extrusion, Paint Pretreatment, Protection, Cleaning, Metal Working, Rubber-Metal Bonding
Spray or Immersion
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