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Ashok Industry


Metal Pretreatment Chemicals

We are a leading manufacturer and exporter of a wide range of Metal Pretreatment Chemicals that find application for various purposes. Quality tested on various parameters, we assure our clients completely flawless products. Extremely effective, our range can be availed in standard as well as customized dimensions as per the requirement of our clients. Our complete range can be availed at market leading prices.

Room Temperature Zinc Phosphating Chemical

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Room Temperature Zinc Phosphating Chemical
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Product Details:
Packaging Typecans
Packaging Size7 Kgs, 15 Kgs & 45 Kgs
ColorPlain
BrandAshok Industry
Physical StatePowder
UsageIndustrial

The ASFOCOAT-K process operated at room temperature produces a fine grain smooth and continuous Zinc Phosphate conversion coating for pre-paint treatment of steel. Applied by dip, it protects the base metal against corrosion and bonds supplementary coatings firmly to the surface. The chemically converted phosphate coating provides an excellent foundation for the lasting adhesion of paint.

Process:

Sr. NoStageChemicalConcentrationTemperatureTime (minutes)Tank
1DegreaseASFOCLEAN-B5 - 10% (w/v)R.T. - 70?C10/20/10*M.S./Plastic
2RinseWATER-R.T.1M.S./Plastic
3DerustSCALGUN / RUST SOLVENT15% - 25% (v/v)R.T.10/30/10Plastic or FRP lined M.S.
4RinseWATER-R.T.1M.S./Plastic
5ActivateASHPREP (Optional)0.5% (w/v)R.T.1M.S./Plastic
6Phosphate + AdditiveASFOCOAT-K + ACCELERATOR4% - 6% (v/v) 0.2%-0.3% (w/v)R.T.15 - 30
7RinseWATER-R.T.1
8PassivateASFOFIX-A0.025% (v/v)R.T. - 70?C1*M.S./Plastic
9Dry-off immediately with help of hot air blower or compressed air under a fan.

Notes :

  • While preparing any bath, always add chemical to water
  • While preparing phosphating 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 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% produces a compact dense zinc phosphate coating


Additional Information:

  • Item Code: ASFOCOAT-K
  • Pay Mode Terms: T/T (Bank Transfer)
  • Port of Dispatch: mumbai
  • Delivery Time: 4-5 days
  • Packaging Details: as per specification
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Hot Zinc Phosphating Chemical

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Hot Zinc Phosphating Chemical
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Product Details:
Packaging Size7 Kgs, 15 Kgs & 45 Kgs
ColorPlain
BrandAshok Industry
Grade StandardTechnical Grade
Physical StatePowder
UsageIndustrial

ASFOCOAT-ZX process is operated at higher temperature by dipping method to produce a smooth and continuous fine grain Zinc Phosphate conversion coating. This coating improves adhesion between paints and steel and also protects steel from under-paint corrosion thus enhancing life and durability of paints.

Uses:

ASFOCOAT-ZX process is used on all steel surfaces which are to be painted or powder coated. It is also used on ground and machined components etc. to produce medium to heavy weight zinc phosphate coating which is then sealed with rust preventive such as ASFOSIL DW-56. This process is ideally suited to produce dark grey to black phosphate coating on nut bolts and fasteners.

Process:


Sr. NoStageChemicalConcentrationTemperatureTime (minutes)
1DegreaseSTRIPPER-HD5% - 10% (w/v)95°C10/15/10
2RinseWATER-R.T.1
3DerustSCALGUN or RUST SOLVENT33%-50% (v/v)R.T.5 - 20
4RinseWATER-R.T.1
5PhosphateASFOCOAT-ZXA : 8% (v/v) } B : 6% (v/v) } C : 4% (v/v) }90° - 95°C 75° - 85°C4 - 8 10-15
6RinseWATER-R.T.1
7PassivateASFOFIX –A0.025%-0.05% (v/v)70ºC1
8Dry-off with help of hot air blower or compressed air or in oven.

Notes :

  • Tanks for Stage 1, 5 & 7 - M.S. Tank with S.S. heaters Stage 3 & 4 - Plastic Tanks or PVC/FRP lines M.S. Tank Stage 2 & 6 - M.S. or Plastic Tank
  • Heating in tanks 1, 5 & 7 should only be done from the sides of the tank and not from the bottom
  • Heavily contaminated sheets and parts must be dipped/swabbed with kerosene or degreasing bath solution before dipping in the degreasing bath
  • In most continuous processes it is necessary to have a hot spray knock-off with ASFOCLEAN-SP prior to degreasing or have two dip degreasing stages using STRIPPER-HD

Sealing:

Phosphated parts which are not to be painted should be dipped in ASFOSIL-DW56 for long term protection against corrosion.

Safety Precautions:


  • PVC/Rubber gloves, aprons and eyeshields should be worn while handling chemicals
  • Splashes or splatters on eyes or skin should be washed off with plenty of fresh water

Packing:
7 Kgs, 15 Kgs & 45 Kgs. Polythene Carboys.


Additional Information:

  • Item Code: ASFOCOAT-ZX
  • Pay Mode Terms: T/T (Bank Transfer)
  • Port of Dispatch: Mumbai
  • Delivery Time: 4-5 days
  • Packaging Details: As per Specification
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3 In 1 Chemical

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3 In 1 Chemical
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Approx. Rs 1 / KGGet Latest Price

Product Details:
Packaging Typepacked in cans
BrandAshok Industry
Grade StandardTechnical Grade
Physical StateLiquid
UsageIndustrial

Asfocoat-drp is a liquid chemical product used for surface preparation of metals before painting. The objective of treating metals with asfocoat-drp, before painting is to prolong the life of paints by offering it a “compatible” surface to which it will be locked. Asfocoat-drp removes oils, rust, soils, etc. And forms a phosphate coating integral with metal surface.

 

Pretreating metals with asfocoat-drp offers the following advantages :-

 

  1. Prevents under paint corrosion

  2. Prevents spreading of rust from a damaged area to sound area adjoining it

  3. Increases paint adhesion with metal substrate

  4. Prevents paints from peeling or flaking off

  5. Enhances durability and life of paints

 

Aasfocoat-drp can be easily applied by swab, brush or dip after dilution with water at room temperature. After 5-10 minutes, the surface is simply wiped dry with a cloth. The surface is now ready to accept any type of paints or primers. asfocoat-drp can be applied on any ferrous metals. Few applications are on steel furniture such as chairs, tables, cupboards, cabinets, safes, lighting patties, luminaries, printers, copiers, duplicators, computer systems, typewriters boilers, heat exchangers, coolers, air conditioners, slotted angles and various other equipment machineries and fabrications, that are to be painted/or powder coated.

 

Asfocoat-drp is available in 3 standard packings of 6, 12 & 40 kgs. Asfocoat-drp is manufactured by ashok industry since 1960 and is an ISO 9001 certified company.



Additional Information:

  • Item Code: ASFOCOAT-DRP
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Yellow Chromate Coating

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Yellow Chromate Coating
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Product Details:
Brandashok industry
Pack Size30
Is It Corrosion ResistantCorrosion Resistant
ApplicationIndustrial Use
Usage/Applicationon aluminum
Packaging Size30

Yellow Chromate Coating For Aluminium

Ashok Industry an ISO 9001 Certified Company manufactures various Metal pre-treatment Chemicals since 1960 and offers a simple 4-stage chemical process for pre-treating Aluminium Surfaces prior to powder coating or liquid painting.


  1. Stage 1 involves cleaning with 2% - 5% solution of SCALGUN-A with water at room temperature for 3 – 5 minutes
  2. Stage 2 – Water Rinsing
  3. Stage 3 involves Chromatising with 1 - 3% solution of ASHCROM-G70 with water at room temperature for 3 – 5 minutes
  4. Stage 4 – Water Rinsing and Air Drying

 

Following the above simple process gives excellent paint bonding/adhesion of powder coats to the base surface. It also gives excellent corrosion protection.



Additional Information:

  • Item Code: ASHCROM-G-70
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Jet Black Zinc Phosphating

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Jet Black Zinc Phosphating
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Product Details:
Packaging Size45
BrandASHOK INDUSTRY
Grade StandardTechnical Grade
Physical StateLiquid
UsageIndustrial
State of MatterLiquid

Asfocoat-ecs

(Dark coloured zinc phosphate coating)

 

Introduction:

 

Asfocoat-ecs produces a dark grey to black coloured compact zinc phosphate coating. The colour of the coating produced will vary from dark grey to black depending on composition of m. S. Material.

 

Asfocoat-ecs process is to be operated above 80°c. Parts which are processed with asfocoat-ecs can be either painted or oiled or one side can be painted and the other side can be applied with a suitable rust preventive oil.

 

Uses :

 

Asfocoat-ecs is most suitable for various parts and components which need to have a deep black finish when oiled. It is ideal for components such as nuts, bolts, springs, gears, automotive components, textile machinery components, chains, sprockets, couplings etc. Where a dark grey to black zinc phosphate coating is desired alongwith superior rust protective properties.

 

 



Additional Information:

  • Item Code: ASFOCOAT-ECS
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Manganese Phosphating Chemical

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Manganese Phosphating Chemical
  • Manganese Phosphating Chemical
  • Manganese Phosphating Chemical
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Approx. Rs 1 / KilogramGet Latest Price

Product Details:
Minimum Order Quantity7 Kilogram
Grade StandardTechnical Grade
Physical StateLiquid
Packaging Size40
Packaging TypeCAN
ColorCOLOURLESS
BrandASHOK INDUSTRY

Phosphate treatment of metals or Phosphating, as it is commonly termed in the metal finishing industry has been acclaimed as one of the most useful and effective method for the protection of iron and steel surfaces from atmospheric corrosion. It is manganese phosphating chemicals. Apart from its anti-rust character, the coating provides an ideal base for an organic finish and as an aid to lubrication. It also prevents wear in sliding or frictional parts. The coating provides myriads of oil reservoirs effective in reducing friction.

Performance:

ASFOCOAT-MN is of Manganese Phosphate type and mainly used for producing corrosion resistant phosphate coating as well as lubricating and wear resistant surface under a dip type system. It produces dark grey coatings of the order of .002 mm for light coatings and .005 mm or more for heavy coatings weighing from 800 mgs per sq.ft. of surface area, to higher than 2,000 mgs per sq.ft. as per desired specifications to meet class A1 coating under I.S. 3618.

Application:

Piston Rings, Rocker Arms, Gears, Valves, Tappets, Cylinder Lines, Camshafts, Nuts & Bolts, Small Arms and Defence Equipments and other machinery spare parts are frequently phosphated to increase life, by reducing Wear and Friction.

Process:

Sr.NoStageChemicalConcentrationTemperatureTime (minutes)
1DegreaseASFOCLEAN-AD1010% (v/v)60ºC - 95ºC10/15/10
2RinseWATER-R.T.1
3PhosphateASFOCOAT-MNA : 8% (v/v) B : 5% (v/v) C : 3% (v/v)95ºC* 10–20
4RinseWATER-R.T.1
5RinseWATER-60ºC - 80ºC1
6Dry-off by blowing air or compressed air on in an oven.
7SealingASFOSIL-DW56R.T.2

Notes :

  1. Tanks for Stage 1, 3 & 5 : M.S. Tank with S.S. heaters. Stage 2, 4 & 7 : M.S. or Plastic Tank
  2. Heating in tanks 1,3, 5 should only be done from the sides of the tank and not from the bottom
  3. False bottom should be provided in each tank to avoid parts from touching the bottom and to maintain bath free from sludge interference
  4. Heavily contaminated sheets and parts must be dipped/swabbed with kerosene or degreasing bath solution before dipping in the degreasing bath
  5. To make initial bath, the tanks should be half filled with water and then the required chemical added. Extra water as required should then be added to achieve the working level
  6. Aging of the phosphating bath should be done initially by adding steel wool at 1 gm/litre of bath to build iron content in bath
  7. Phosphating bath should be decanted periodically to remove sludge settled at the bottom of the tank
  8. 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
  9. Skum & oil floating on any of the tanks should be removed immediately
  10. Additions to all chemical tanks should be made daily and regularly to obtain consistently uniform results
  11. All rinse water baths should be made fresh at least twice a week


Additional Information:

  • Item Code: ASFOCOAT-MN
  • Port of Dispatch: MUMBAI
  • Production Capacity: 1 TON
  • Delivery Time: 7-8 DAYS
  • Packaging Details: CAN OF 5,45
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Derusting Cum Pretreatment Chemical

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Approx. Rs 1 / KilogramGet Latest Price

Product Details:

Minimum Order Quantity45 Kilogram
Brandashok industry
Pack Size45
Packaging Typecan
ApplicationIndustrial Use

RUST SOLVENT-BX

 

RUST SOLVENT-BX is a rust remover-cum-pretreatment chemical product based on Phosphoric Acid composition which can be applied suitably by dipping method or by wiping to ferrous metals as well as aluminium in preparation for painting.

 

RUST SOLVENT-BX removes oils, rust, etches the surface to produce a fine iron phosphate coating.

 

APPLICATIONS :

 

BY DIP: Prepare the solution by diluting 1 part RUST SOLVENT-BX with 2 to 3 parts water and immerse the parts 30-60°C for 5-20 minutes in case of ferrous metals. Whereas for aluminium, dip the components for few minutes at 30-40°C. After removing from this bath, the aluminium parts are rinsed with cold water and then hot water. M.S. parts which are small or intricate in nature, also can be washed with hot water and then passivated.

 

Equipments required are mild steel tank lined with Rubber/PVC/FRP. Heating should be arranged by electric immersion heaters

 

WIPE METHOD: Prepare the solution by diluting 1 part RUST SOLVENT-BX with 2-6 parts water, and apply this solution on rusty steel surfaces by steel-wool or by brush. Allow to react with the surface for few minutes and then wipe the surface dry with a clean cloth or saw dust before the solution dries.

 

PASSIVATING: Cleaned parts or components are either sprayed with hot solution of 0.1% (1 gm/lit) ASFOFIX-A for half minute ( Passivation is carried out only on parts which are rinsed with water)

 

Then the surface is dried by blowing hot air or in oven before application of primer or paint.

 

PRECAUTIONS :

 

Use rubber gloves on hand while working with the above solutions. Care should be taken to avoid splashing of the liquid on Clothes, eyes etc. Also material should be stored away from flame. Also cover the tanks containing the solution of RUST SOLVENT-BX with lids.

 



Additional Information:

  • Item Code: RUSTSOLVENT-BX

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