SCOPE
Metaclean -30 is an alkaline degreasing compound suitable for the cleaning of iron and steel surfaces priorTo phosphating. Metaclean -30 is an immersion type alkaline degreaser.
PROCESS
The process of degreasing consists of immersion of articles at 70 to 80 c. in degreasing bath For 15 to 20Minutes. After degreasing the article is to be rinsed with water.
APPLICATION: -
The concentration of Metaclean -30 depends upon the amount of oil to be removed from the Metal surface.The Metaclean -30 bath is generally prepared by dissolving Metaclean -30 Powder at the rate of 40 kg’s.
Per 1000 Litters of preheated water 70 to 80 c.
CONTROL AND REPLENISHMENT: -
To determine the strength of Metaclean -30 bath take 10 ml sample of METACLEAN-30 solution add 2 to 4 drops of phenolphthalein indicator. Titrate with o.1 N sulphuric acid till pink colour disappears.
Fresh Metaclean -30-bath will have 42 +/- 1-point ages. To increase the pointage by 1 point add 2.0 kg’s.
For every 1000 Litters of water.
Precaution
Metaclean -30 powders contain strong alkalis and should be handled with care. Use rubber gloves and Goggles. Wash with plenty of water of Metaclean -30 comes into contact with skin and eyes.