Phosphating Chemicals

Salient Features:

• Removes thin films of oil
• Forms a light amorphous iron phosphate coating on ferrous and steel                  components.
• Forms zinc phosphate coating on galvanized steel surfaces by converting a part of the zinc surface into an integral zinc phosphate coating.
• Forms aluminium phosphate coating on aluminium surfaces. The phosphate coatings so formed will be a good base for subsequent liquid painting and powder coating.
• May be used as 3-stage, or 5-stage, depending upon type and degree of oils and superficial impurities.
• My be used by dip process, or by spray process
• In spray process, dwell time is 60 to 120 seconds.
• In dip process, duration of dip is 7 to 10 minutes.
• Build-up of iron phosphate coating: 50 to 60 mg./sq.ft.
• Build-up of zinc phosphate coating on galvanized steel surfaces will be around 50 -150 mg/sq.ft.
• Build-up of aluminium phosphate coating: 50 to 100 mg./sq.ft.

Salient Features:

ZINPOFOR ZS  can be used both in DIP & SPRAY process

ZINPOFOR ZS  Gives light, smooth, dense, crystalline zinc phosphate coating, firmly adherent to, and integral with the surface being treated. The build up of the coating is around: 100 to 400 mg/s.ft. the treated surface is ideal for liquid painting and powder coating.

In DIP process : Used at 5% concentration. Dip duration 5 to 8 minutes.

In SPRAY process: Used at 2% concentration. Spray duration 90 to 180 seconds.

Used at room temperature and can be heated up to 60 deg Centigrade.

Salient Features:

VANGUARD RC

Functions at temperature range of: 65 to 70 deg. C.  In about 3 to 5 minutes' of dip duration, forms velvet-smooth, dense, very hard and crystalline calcium modified zinc phosphate coating. The Coating wt: between 250 and 400 mg/s.ft. It is an Ideal base for subsequent painting liquid paint, powder coating,

The Calcium present acts as the in-built grain refiner in the phosphating bath and hence eliminates the need for a separate activation or a titanium pre-rinse step. Thus, the introduction of calcium not only results in the formation of coatings of good quality, but also contributes to the economy of the process through the elimination of the pre-rinse process stage.

Salient Features:

VANGUARD-TCI gives light, smooth, dense, crystalline Tri-cation zinc phosphate coating, (zinc – nickel – manganese phosphate coating) firmly adherent to and integral with the surface being treated. The build-up of the coating is around: 100 to 300 mg/sq.ft. The treated surface is ideal for liquid painting, powder coating and autohoretic & CED coating. The coating so formed provides improved corrosion resistance to metal substrates and provide a uniform layer for the application of paint finishes. Operating temperature RT to 45 deg C.

VANGUARD T  is a high zinc/nickel modified phosphate conversion coating chemical formulated to treat iron steel and some alloy steel surfaces for promotion of uniform compact phosphate coating.  The treated surface after further application of lubricant facilities DRAWING, FORMING or EXTRUSION operations.