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- Unit of Measure
1.0 PRODUCT SCOPE:
PHOSBOND-ZXC is an accelerated ambient temp. dipprocess for mild steel, galvanized and alloy steel, which produces a finesmooth Nickel & Manganese modified Zinc Phosphate coating.The crystalline layer has very good corrosion protectingproperties and is an excellent foundation for subsequent painting or organiccoating.
1. 2. 3. 4. 5. 6. 7. 3.0 PRODUCT OPERATING DATA:
Â· Â· F.A : 1.0-1.5 ml.
Gas point : 3-5 mls
Â· Â· Â· Â· 4.0 PRODUCT APPLICATION PROCEDURE:
4.1 COMPLETE PROCESS: The complete process forapplication of PHOSBOND-ZXC solution normally consists of following steps:
2. 3. 4. 5. 6. 7. 8. 9.
4.2 BATH MAKE UP: Partially fill the tank with water add 5 lit. of PHOSBOND-ZXC for every 100 litres of bath. Fill the bath upto its operating level with water and stir the solutions thoroughly. Add 30-40gms of ACCELERATOR crystals dissolved in cold water for every 100 litres ofbath
4.3 OPERATION: The processtreatment consists of immersing the substrate (properly cleaned) in thebath for sufficient time to allowconversion of metal surface to a uniform coating. It may usually take 10minutes for this.
4.4 BATH MAINTENEANCE: During theoperating of the process, sludge is formed as a by- product of the reaction.This sludge settles to the bottom of the tank and BATH should be periodicallydesludged and chemical concentration should be replenished by adding chemicalto achieve specified bath pointage.
5.0PRODUCT APPLICATION EQUIPMENT:
All equipment for use with PHOSBOND-ZXC should be constructed of mild steel or SS which results inlonger tank life.
6.0TESTING AND CONTROL:
6.1 TOTALACIDITY: Pipette 10ml. of Bath solution in a conical flask and add 4-5 drops Phenolphthalein indicator. Titrate against N/10 SodiumHydroxide until color changes from colorless to pink. The number of ml. of N/10 NaOH added isthe pointage of the bath. An addition of 180 ml.. of PHOSBOND-ZXC per 100 lts. is required for one point lacking. Maintainpointage between 22-26 mls.
6.2 FREE ACIDITY: Pipette 10ml.of Bath solution in a conical flask and add 3-4 drops bromo phenol blueindicator. Titrate against N/ 10 Sodium Hydroxide until color changes from yellow to blue. The number of ml. of N /10 NaOH added is the desired pointage.Maintain pointage between 1.0 -1.5 mls
6.3 ACCELERATOR TEST: It isimperative to add small quantities of Accelerator everyday before startingproduction. For best results, accelerator should be added regularly to the bathas a rate pre determined by work load. To test accelerator presence dip a pieceof Starch Iodide paper in the bath. After some time, its color will indicateconcentration of accelerator in the bath as under:
White : No accelerator.
Pale Mauve : Insufficient accelerator.
Blue to darkblue : Correct Accelerator.
Blue black : Excessive Accelerator.
It is essentialto maintain correct amount of accelerator, excess accelerator in the bathcauses sludge formation.
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Village Gullarwala, Sai Road,
Near Vishal Mega Mart, Baddi (H.P)
Mobile No.: +918894293302, +919811140231, +919999324696