Metal Finishing Chemicals

ASHBLAK RT-10 is a new revolutionary development in cold black finishing. It will impart jet black conversion coating to steels, cast iron and other ferrous metals at room-temperature.

ASHBLAK RT-10 process is easy to do in-house. It is non-caustic, non-splattering, safe, energy saving, fast, dependable and convenient. It increases productivity and lowers labour costs. Finishing can be done anywhere without special equipment, ventilation, heating systems or any complicated control procedures.

EQUIPMENT REQUIRED

Acid Resistant tanks, containers, tumbling barrels, baskets, hooks and racks must be used with ASHBLAK RT-10 and derusting tank. Plastic or Rubber lined tanks and plastic-coated hooks and racks are suitable for both ASHBLAK RT-10 and derusting tanks. Mild steel may be used for degreasing, rinsing & sealant tanks.

 

DIRECTIONS FOR USE

 

1. Thoroughly clean and degrease the pieces to be blackened in STRIPPER-HD or ASFOCLEAN-B. The type and degree of surface soil will determine the length of time and the number of cleaning steps and cleaning temperature (M.S. Tank).

 

1. Rinse thoroughly in overflowing cold water (M.S. Tank).

 

1. a) Surface rust, if present, should be removed following cleaning cycle using SCALGUN at a concentration of 1:1 at room temperature (FRP Tank).

 

b) Activation will be required for parts that are heat treated, work-hardened, micro-finished, etc. This can be done using SCALGUN-HL at 1:1 concentration at room temperature for 1 – 2 minutes (FRP Tank).

 

1. Rinse thoroughly in overflowing cold water (M.S. Tank).

 

1. Immerse the pieces in ASHBLAK RT-10 solution. ASHBLAK RT-10 solution is to be diluted with 6 to 12 parts of water depending on alloy and surface, hardness. The immersion time necessary to produce the desired depth of black, is usually one to three minutes. For most parts a dilution of one part ASHBLAK RT-10 with 9 parts of water would give good results (FRP Tank).

 

1. Rinse the pieces in overflowing cold water for 30 seconds (M.S. Tank).

(P.T.O)

 

1. Immerse the pieces in ASFOSIL-DW, a dewatering type rust preventive at room temperature for 2 minutes to seal the finish and impart corrosion resistance (M.S. Tank).

 

The above parts can be sealed while wet or dry. If parts have to be dried prior to sealing, step 6 should be followed with a hot water rinse and the parts to be sealed as soon as they are dry.

 

A wide range of rust preventives are available with us. Consult us on what type of finish and protection you require for your parts or components and we can suggest a suitable ASFOSIL.

 

ASHBLAK-RT10, a chemical manufactured by Ashok Industry produces jet black coatings on ferrous parts and components, at room temperature.  It is a very simple and economical process that can be done in house without any specialized equipments.

Clean parts are simply immersed in a diluted solution of ASHBLAK-RT10 with water at room temperature for 2 – 10 minutes till a black coating is obtained.  Parts are then rinsed with water and dipped in ASFOSIL-DW – a dewatering type oil to seal the black finish and impart corrosion-resistance.

COPKLIN-1 manufactured by Ashok Industry is used for brightening of copper & brass parts, strips, wires, coils, tubes, etc.  It can also be used for cleaning old tarnished parts or for plating pre-treatments.

COPKLIN-1 is a liquid chemical composition and is supplied in a concentrated form.  For use, it is to be diluted with water.

Parts are simply immersed in this solution for 1 to 5 minutes and then rinsed with water. COPKLIN-1 is supplied in 2 standard packings of 7 & 30 kgs.  Ashok Industry manufactures various industrial specialty chemicals since 1960 and is an ISO 9001 Certified Company.

We are counted amongst the leaders in manufacturing and exporting Black Stains to the customers. These products are widely utilized in the market for accurate composition and flawless quality standards. Processed with premium grade chemicals, these products are extensively used for diverse industrial applications. All these products are tested on various parameters before the final dispatch.

Features:

• Appropriate composition
• Accurate PH value
• Longer shelf life

The Chromatising Chemical for Galvanized offered by us are widely acknowledge among the customer base for their high quality standards. These products are processed with graded chemicals sourced from trusted merchants of the industry. The Chromatising Chemical is basically used for providing corrosion resistance and for increasing the adhesion property of paints.

Other  features:

• Tough coating
• Excellent mechanical properties
• Stable in nature

This low temperature process can be operated at any temperature in the range of 30-70°C. to produce compact, adherent, complex Zinc Phosphate conversion coating on mild steel.  The coatings produced have excellent corrosion resistance properties. Extremely heavy weight coatings up to 5 microns in thickness can be achieved by this process.  However, for paint application medium to light weight coatings having a find microcrystalline structure can be produced.  This fine grain structure affords excellent paint adhesion.

USES :

It is used on all steel surfaces which are to be painted.  It is also used on ground and machined components, automobile spare parts, defence equipments, machinery components etc.
 
PROCESS:

Blank

Sr. No.	Stage	Chemical	Concentration	Temperature	Time (minutes)	Tank
1	Degrease	STRIPPER-HD	5% - 10% (w/v)	R.T.- 90?C	05/20/10	* M.S./Plastic
2	Rinse	WATER	-	R.T.	1	M.S./Plastic
3	Derust	SCALGUN or RUST SOLVENT	15% -25% (v/v)	R.T.	05/30/10	Plastic/ FRP lined M.S.
4	Rinse	WATER	-	R.T.	1	M.S./Plastic
5	Activate	ASHPREP (Optional)	0.4% (w/v)	R.T.	1	M.S./Plastic
6	Phosphate + Additive	ASFOCOAT-51 + ACCELERATOR	4% - 8% (v/v) 0.2% (w/v)	40?C-70?C	05/15/10	M.S.
7	Rinse	WATER	-	R.T.	1	M.S./Plastic
8	Passivate	ASFOFIX-A	0.025%-0.25%(v/v)	R.T.-70?C	1	* M.S./Plastic
9	Dry-off immediately with help of hot air blower or compressed air or under fan.

NOTES:

• While preparing any bath, always add chemical to water.
• While preparing bath, first add the required amount of chemical to water and then add ACCELERATOR as stated below.
• ACCELERATOR should always be dissolved separately in a small quantity of water and this solution is then sprinkled uniformly in the phosphating bath.
• False bottom should be provided  in each tank to avoid parts from touching the bottom and to maintain bath free from sludge interference.
• Phosphating bath should be decanted periodically to remove sludge settled at the bottom of the tank.
• Manual swabbing with the degreasing solution is advisable for heavy oily contamination.
• The quality and uniformity of the phosphate coating is directly dependent on the pre-treatment prior to phosphating. It is essential that the parts are absolutely free of oil, rust, dust, scales and other contaminants before immersing in the phosphating bath.
• pH of the passivating bath should be maintained between 3 & 5. Passivating bath should be discarded periodically and made fresh.
• Additions to all chemical tanks should be made daily and regularly to obtain consistently uniform results. 
• All rinse water baths should be made fresh at least twice a week.
• Activation with ASHPREP at 0.5% with water should be carried out just prior to phosphating to get a compact dense zinc phosphate coating.

Ours is a noted name in the market for manufacturing and exporting Hot Blackening Compounds to the customers. These products are extensively used in the steel industries for the purpose of creating a black, smooth and corrosion resistant coating on steel and iron products. Al these compounds are processed with contemporary machines installed in the unit, which ensures that the products are of accurate composition.

 

Features:

 

• High coating thickness
• Resistant to iron & copper contamination
• Saves excess heat due to low sludge

 

Feroxy blackening compound

             (Treatment Produces Smooth Black Coating on M.S)

 

I.                   Introduction:  

This hot oxidising process produces a smooth, glossy, jet black finish on M.S., Ferrous metals and some of its alloys. Blueing process for iron & steel. This black finish is very decorative and when sealed properly with a suitable rust preventive like ASFOSIL-DW, it affords lustre and long term protection to the parts against corrosion and oxidation. 

Its a blackening salt for a steel.                                                                         

Packing:  10 Kgs & 50 Kgs.