- We offer wide array of phosphating chemicals to our international clients. The chemical is developed under hygienic condition as per the ISO standard
- Prior to its dispatch at the client’s end, it is quality inspected by our professionals
- It is available to our clients with customized packaging.
Various phosphating chemicals offered by us are mentioned details:
Meprophos 2614 Z:
- It is used to produce crystalline zinc phosphate coating obtained as per class A of IS 3618
- It is widely used in seven-tank process.
Step One (Degreasing):
If the items to be phosphated have oily layer of grease then its degreasing should be done prior to any process
Various types of degreasing include following Alkaline Degreasing:
Following are the steps for alkaline degreasing:
- Dissolve Meproche 245 at a ratio of 5% in water
- Heat upto 80-85°C and dip the parts for 5 to 10 minutes
- It removes industrial soil age, oil and grease and provides dirt free parts
Test & Replenishment:
- Take 10 ml of bath material and titrate against 0.1 N Sulfuric acid, using phenolphthalein as indicator
- The pink end point should be between 60-65 ml and if found less add more Meproche 245 @ 0.8 kg per 1000 liters of bath material
- It gives rise in pointage (No. of ml of 0.1 N sulfuric acid) and thus maintain the pointage between 60 and 65
- Remove the oil and grease from the top of the bath by skimming, as and when generated
Solution Degreasing:
- Use of Trichloro Ethylene or 1: 1: 1 Trichloro Ethane or Meproche Chlorosol
- Ultrasonic Vibration is used if the parts are small then to accelerate the degreasing greatly
- Meproche Chlorosol is very effective and cheaper than Tricholoro ethylene and 1:1:1 Trichloro Ethane.
Specifications:
- Dip time = 10 to 15 seconds
- Temperature = RT (or 5 to 10 minutes for DIP type degreasing at room temperature or 5 to 20 minutes at 85° c for vapor degreasing
Step Two (Rinsing):
Rinse the components in hot/cold running water
Step Three (Pickling):
- Following are the steps to be followed in the pickling stage
- Acid pickling bath should contain 14 to 18% concentration of Hydrochloric acid 18% Conc. from April to September
- Add l litres of Meprolene per 1000 kgs of the bath material
