M/s Metchem Surface Technologies

METOCHEM-NF (Alkaline cleaner for metals and non-metals) METOCHEM-NF is a water soluble alkaline degreasing cum cleaning compound. It is mainly used for cleaning of metals prior to anodising, blackening, electroplating, galvanising, phosphating, tinning, etc. It removes oils, light grease, dirt, soils etc. very effectively without attacking or damaging the base surface. USES: It is widely used for degreasing and cleaning of all ferrous metals and non-ferrous metals such as aluminium, brass, copper, zinc, tin, bronze, etc. prior to electroplating, phosphating, blackening, anodising, tinning, etc. It is also used for cleaning of metals and non-metals such as plastic, glass etc. either at room temperature or hot. METOCHEM-NF can be used as an electrolytic cleaner, spray cleaner and in ultrasonic cleaning machines. It is widely used for cleaning of equipments prior to assembly and for maintenance jobs. 

INTRODUCTION - NISH RUST SOLVENT -201 is a Phosphoric base solution which is used to treated rusted components/parts . It removes the layer of oxide and scale from from the iron surface before phosphating . It can be applied by dipping, brushing, etc.  

2. Physical Constants:

Colour - pale yellow

Pointage – 20 + 2

 

 

 

3. EQUIPMENT : Rubber/ PVC lined steel tank is quite suitable for the operation.

 

4. OPERATIONALRECOMMENDATION :

 

Dissolve 15%- 25% NISH RUST SOLVENT -201 chemical by volume as per requirement. Dip the parts, to be de-rusted in the solution for 5-10 min. depending on the rust present on the parts.

 

 

5. BATH CONTROL PARAMETER :

Pointage of De-rusting tank should be maintained at 18-22

And titrated against N/10 NaOH using Phenolphthalein indicator.

Take 10 ml. of bath solution and diltute to 100 ml with phenolphthalein Indicator End point is Milky White to Pink.

Add 1.5 litres of NISH RUST SOLVENT for 100 litres to increase the pointage by one.

 

% OF Iron check

Dilute 10 mls of bath solution to 100 mls with water. Shake it well and then take 10 mls. Add 5 ml of 50% conc. Sulphuric Acid . Titrate the solution against N/10 Potassium Permanganate solution till the pink colour persists for 15 seconds.

Value x 0.56 = Result

Additional Information:

• Packaging Details: PACKED IN 40 KGS PLASTIC CANS .

METOCHEM-RC-2

(SPECIAL ACRYLIC POLYMER BASED RUST CONVERTER)

 

METOCHEM-RC-2 is a LIGHT GREEN liquid which when applied on rusty metallic structures particularly iron & steel surfaces, converts the rust into black protective coating.  Even the best paints cannot give full protection if they are applied on steel surface which is not entirely free from rust.  Durability of the paint film depends as much upon the quality of the surface to be treated as upon the quality of the paint.

 

Various rust removing methods such as sand blasting, flame cleaning, wire brushing, grinding by abrasives are not only expensive and tedious but time consuming.  Moreover they expose the base metal again to corrosion and rust may reappear even before the primer coating is applied.

 

ADVANTAGES:                                                                                                                

 

Paints applied over METOCHEM-RC-2 coating are 2 to 3 times more durable when applied on rusty surface.  It has very easy application with little labour.  No special equipments are needed.  Rust removing operations are eliminated & metallic surface is converted into more useful and hard blue black protective coating.  METOCHEM-rc-2 is a guarantee of long lasting protection.

 

METOCHEM-RC-2 is such an active chemical that it reacts in depth with all the rusty layers & forms a protective film which prevents further rust formation.  METOCHEM -RC-2 has a triple action on rust.

1)      Penetrates through all the rust layers.

2)      Reacts with all the rust deposits & converts them to a metal organic compound of a hard blue black colour.

3)      Stabilizes and binds the rust layers into a 100% protective neutral coat.

 

USES OF METOCHEM-RC-2:

 

It is particularly recommended for the following:-

 

Shipbuilding structures, Factory structures, Storage tanks, Heavy machinery and Engineering equipment, Steel frames, Cranes, Pipe lines, Oil Refinery, Steel structures and various other uses, for all rusted surfaces prior to painting or repainting.

 

METHOD OF APPLICATION:

 

Oil, grease, dirt and loose paint if present must be removed first, then loose rust must be removed by wire scrubbing or emery paper.  METOCHEM-RC-2 is used directly. No dilution required.

Additional Information:

• Item Code: metochem-rc-1
• Production Capacity: 25 tonnes
• Delivery Time: 2 days