S. S. KHARDEKAR INDIA PVT. LTD.

Manufacturer of various foundry products
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Coatings

KOREFINISH GR

INTRODUCTION :

KOREFINISH GR is in thixotropic liquid Dark Grey/ Black coloured water base coating containing High Quality Refractory Material & Graphite. It imparts low reactivity to the metal oxides & delivers excellent casting surface finish especially at High Pouring Temperatures.

It is suitable for dipping applications of Resin Bonded Complex core in the production of the castings like Cylinder Blocks, Cylinder Heads & the hydraulic components. It is recommended for Grey Cast Iron, S. G. Iron & Non Ferrous Alloys.

PHYSICAL PROPERTIES :

  • Colour - Dark Grey/ Black coloured liquid
  • Specific Gravity - 1.35-1.40 gm/cc
  • Solid content - 45-50 %
  • Dilution Ratio - KOREFINISH:WATER – 1:0.25 to 1:0.35
  • Application Viscosity (By B4 Cup) - 13-16 seconds

APPLICATION TECHNIQUE :

  • KOREFINISH GR is used for Grey Cast Iron, S. G. Iron & Non Ferrous Alloys castings especially Automobile castings. It can be applied on Cores & Moulds of all types of Resin Bonded Cores.
  • It is suitable for Dipping, Spraying, Brushing & Flooding or over-pouring type applications.
  • After coating applications, the cores are dried in an oven at temperature between 150-180 oC for one hour which ensures uniform, homogenous & dense coating film.

BENEFITS :

  • Dipping Applications coupled with low preparation time & speedy deposit of coating on the cores offers high productivity.
  • As it is in thixotropic liquid form ensures thorough uniform mixing of all ingredients during manufacturing.
  • It offers wide uniform coverage which ensures good casting surface finish, free from veining & finning, sand fusion & penetration thus lowers the shot blasting, fettling & grinding costs.

SHELF LIFE & STORAGE :

KOREFINISH GR has a shelf life of 6 months from the date of manufacture. The product should be stored in cool & dry place. Lids of partly used Carboys should be replaced tightly.

STANDARD PACKING :

KOREFINISHGR is available in 30 Kg Poly carboy/bucket.

SAFETY PRECAUTIONS:

  • Remix the carboys contents thoroughly before transferring it to the dilution tank.
  • Monitor the viscosity at periodic intervals especially after every two hours.
  • Use slow speed mixer to avoid air entrapment during continuous mixing.
  • To avoid formation of bacteria, clean the dip tank weekly.

KOREFINISH ZR

INTRODUCTION :

KOREFINISH ZR is in thixotropic liquid form off-white coloured Water Based Zircon coating suitable mainly for Brushing application. Due to the presence of High Quality Zircon, It offers excellent thixotropic properties resulting in superior suspension &excellent performance at High Temperatures. It is suitable for use on most sand binder backgrounds & for almost all metal cast, including critical castings in cast iron & steel.

PHYSICAL PROPERTIES :

  • Colour - Off-white liquid
  • Specific Gravity - 2.0-2.3 gm/cc
  • Dilution Ratio - 1: 0.25-0.30 (PRODUCT:WATER)
  • Dilution Ratio - KOREFINISH:WATER – 1:0.25 to 1:0.35
  • Application Viscosity (By B4 Cup) - 13-16 seconds

APPLICATION TECHNIQUE :

  • KOREFINISH ZR is used for all grades of Cast Iron & Steel & for Aluminium. Also can be applied on Cores & Moulds of Cold Box, Hot box & Shell Resin.
  • It is mainly suitable for brushing applications& optionally for dipping/ spraying by slight dilution.
  • To achieve homogenous & dense coating film, drying of the coating has to be conducted in an oven at temperature 160oC +/-10oC for one hour.

BENEFITS :

  • Dipping Applications coupled with low preparation time & speedy deposit of coating on the cores offers high productivity.
  • As it is in thixotropic liquid form which ensures thorough uniform mixing of all ingredients during manufacturing.
  • It offers wide uniform coverage which ensures good casting surface finish, free from veining & fining, sand fusion & penetration thus lowers the shot blasting, fettling & grinding costs.
  • It gives uniform & complete coverage & ensures good casting finish, free from veining, finning, sand fusion & metal penetration. Thus reduces casting cleaning cost.

SHELF LIFE & STORAGE :

KOREFINISH ZR has a shelf life of 6 months from the date of manufacture. The product should be stored at room temperature under roof & away from direct Sunlight & moisture.

STANDARD PACKING :

KOREFINISHZR is available in 40 Kg Poly carboys.

SAFETY PRECAUTIONS:

  • Remix the carboys contents thoroughly before transferring it to the dilution tank.
  • Monitor the viscosity at periodic intervals especially after every two hours.
  • Use slow speed mixer to avoid air entrapment during continuous mixing.
  • To avoid formation of bacteria, clean the dip tank weekly.

KOREFINISH XL

INTRODUCTION :

KOREFINISH XL is in thixotropic liquid form, brown coloured water base coating containing mainly High Quality Alumino Silicate, Graphite & Iron Oxide. It imparts low reactivity to the metal oxides and delivers excellent casting surface finish especially at High Pouring Temperatures.

It is suitable for dipping applications of Resin Bonded core in the production of the automotive castings especially the complex cores used for Cylinder Blocks, Cylinder Heads, brake components & the hydraulic components where casting finish is extremely important.

It is suitable for Cold Box Core coatings to minimize veining problems. It is recommended for All Grades of Cast Iron.

PHYSICAL PROPERTIES :

  • Colour - Dark Brown thixotropic liquid
  • Specific Gravity - 1.45-1.55 gm/cc
  • Solid content - 50-55%
  • Dilution Ratio - PRODUCT:WATER – 1:0.20 to 1:0.25
  • Application Viscosity (By B4 Cup) - 14-16 seconds (Measured by B4 CUP)

APPLICATION TECHNIQUE :

  • KOREFINISH XL is used for all grades of Cast Iron castings especially Automobile castings. It can be applied on Cores & Moulds of all types of Resin Bonded Cores.
  • It is suitable for Dipping, Spraying, Brushing & Flooding or over-pouring type applications.
  • After coating applications, the cores are dried in an oven at temp between 150-180oC for one hour which ensures uniform, homogenous & dense coating film.

BENEFITS :

  • Dipping Applications coupled with low preparation time & speedy deposit of coating on the cores offers high productivity.
  • As it is in thixotropic liquid form which ensures thorough uniform mixing of all ingredients during manufacturing.
  • It offers wide uniform coverage which ensures good casting surface finish, free from veining & fining, sand fusion & penetration thus lowers the shot blasting, fettling & grinding costs.

SHELF LIFE & STORAGE :

KOREFINISH XL has a shelf life of 6 months from the date of manufacture.The product should be stored in cool & dry place. Lids of partly used Carboys should be replaced tightly.

STANDARD PACKING :

KOREFINISH XL is available in 30 Kg Poly carboy/bucket.

SAFETY PRECAUTIONS:

  • Remix the carboys contents thoroughly before transferring it to the dilution tank.
  • Monitor the viscosity at periodic intervals especially after every two hours.
  • Use slow speed mixer to avoid air entrapment during continuous mixing.
  • To avoid formation of bacteria, clean the dip tank weekly.

KOREFINISH SPCA

INTRODUCTION :

KOREFINISH SPCA is special type to of brown colored water base coating containing High Quality Refractory Material for clean casting in as cast stage. It imparts low reactivity to the metal oxides and delivers excellent casting surface finish especially in the as cast stage.

It is suitable for dipping applications of Resin Bonded core in the production of the critical Grey Cast Iron & S. G. Iron castings. It is recommended for complex cores and core packages used in the production of castings such as Cylinder heads, Cylinder blocks, brake and hydraulic parts where intricate passage should be clean in the as cast stage.

PHYSICAL PROPERTIES :

  • Colour - Bricks Red Colored liquid
  • Specific Gravity - 1.3-1.4 gm/cc
  • Dilution Ratio - KOREFINISH:WATER – 1:0.35 to 1:0.40
  • Application Viscosity (By B4 Cup) - 14-16 seconds (Measured by B4 CUP)

APPLICATION TECHNIQUE :

  • KOREFINISH SPCA is used for Grey Cast Iron & S. G. Iron castings especially Automobile castings. It can be applied on Cores & Moulds of all types of Resin Bonded Cores.
  • It is suitable for Dipping, Spraying, Brushing & Flooding or over-pouring type applications.
  • After coating applications, the cores are dried in an oven at temp. between 150 - 180OC for one hour which ensures uniform, homogenous & dense coating

BENEFITS :

  • It ensures sufficient coverage & coating thickness in just one deep instead of multiple deep.
  • It reduces drying time & increases productivity.
  • It reduces uses of Chromite or Special sand required during core making.
  • Clean internal passages in the as cast stage&wide uniform coverage ensures good casting surface finish, free from veining & fining, sand fusion & penetration thus lowers the shot blasting, fettling & grinding costs.

SHELF LIFE & STORAGE :

KOREFINISH SPCA has a shelf life of 4 months from the date of manufacture.The product should be stored in cool & dry place. Lids of partly used Carboys should be replaced tightly.

STANDARD PACKING :

KOREFINISH SPCA is available in 25 Kg Poly carboy/bucket.

SAFETY PRECAUTIONS:

  • Remix the carboys contents thoroughly before transferring it to the dilution tank.
  • Monitor the viscosity at periodic intervals especially after every two hours.
  • Use Slow speed mixer to avoid air entrapment during continuous mixing.
  • To avoid formation of bacteria, clean the dip tank weekly.

KOREFINISH BDX

INTRODUCTION :

KOREFINISH BDX is in thixotropic liquid form, brown coloured water base coating containing mainly High Quality Imported Refractory Fillers, Alumino Silicate, Graphite & Iron Oxide. It imparts low reactivity to the metal oxides & delivers excellent casting surface finish especially at High Pouring Temperatures.

It is suitable for dipping applications of Resin Bonded core in the production of the automotive castings especially the complex cores used for Cylinder Blocks, Cylinder Heads, brake components & the hydraulic components where casting finish is extremely important. It is suitable for Cold Box Core coatings to minimize veining problems. It is recommended for All Grades of Cast Iron.

PHYSICAL PROPERTIES :

  • Colour - Dark Brown Thixotropic Liquid
  • Specific Gravity - 1.45-1.55 gm/cc
  • Solid content - 50-55 %
  • Dilution Ratio - PRODUCT:WATER – 1:0.20 to 1:0.25
  • Application Viscosity (By B4 Cup) - 16-18 seconds (Measured by B4 CUP)

APPLICATION TECHNIQUE :

  • KOREFINISH BDX is used for all grades of Cast Iron castings especially Automobile castings. It can be applied on Cores & Moulds of all types of Resin Bonded Cores.
  • It is suitable for Dipping, Spraying, Brushing & Flooding or over-pouring type applications.
  • After coating applications, the cores are dried in an oven at temperature between 150-180oC for one hour which ensures uniform, homogenous & dense coating film.

BENEFITS :

  • Dipping Applications coupled with low preparation time & speedy deposit of coating on the cores offers high productivity.
  • As it is in thixotropic liquid form which ensures thorough uniform mixing of all ingredients during manufacturing.
  • It offers wide uniform coverage which ensures good casting surface finish, free from veining & fining, sand fusion & penetration thus lowers the shot blasting, fettling & grinding costs.

SHELF LIFE & STORAGE :

KOREFINISH BDX has a shelf life of 6 months from the date of manufacture. The product should be stored in cool & dry place. Lids of partly used Carboys should be replaced tightly.

STANDARD PACKING :

KOREFINISH BDX is available in 30 Kg Poly carboy/bucket.

SAFETY PRECAUTIONS:

  • Remix the carboys contents thoroughly before transferring it to the dilution tank.
  • Monitor the viscosity at periodic intervals especially after every two hours.
  • Use slow speed mixer to avoid air entrapment during continuous mixing.
  • To avoid formation of bacteria, clean the dip tank weekly.

KOREKOTE GR

INTRODUCTION :

KOREKOTE GR is inready to use form dark grey coloured Alcohol base coating containing High Quality Refractory Material and Natural Graphite. It imparts low reactivity to the metal oxides & delivers excellent casting surface finish especially at High Pouring Temperatures.

It is suitable for brushing, dipping applications of Resin Bonded Complex core in the production of the castings like Cylinder Blocks, Cylinder Heads & the hydraulic components. It is recommended for Grey Cast Iron, S. G. Iron & Non Ferrous Alloys.

PHYSICAL PROPERTIES :

  • Colour - Dark Grey
  • Specific Gravity - 1.0-1.05 gm/cc
  • Application Viscosity (By B4 Cup) - 13-16 seconds
  • Solid content - 32-40%

APPLICATION TECHNIQUE :

  • KOREKOTE GR is used for Grey Cast Iron, S. G. Iron & Non Ferrous Alloys castings especially Automobile castings. It can be applied on Cores & Moulds of all types of Resin Bonded Cores.
  • It is suitable for Dipping, Spraying, Brushing & Flooding or over-pouring type applications.
  • After coating applications, the cores are dried by ignition for few minutes which ensures uniform, homogenous & dense coating film.

BENEFITS :

  • Dipping Applications coupled with low preparation time & speedy deposit of coating on the cores offers high productivity.
  • As it is in ready to use form ensures thorough uniform mixing of all ingredients during manufacturing.
  • It offers wide uniform coverage which ensures good casting surface finish, free from veining & finning, sand fusion & penetration thus lowers the shot blasting, fettling & grinding costs.

SHELF LIFE & STORAGE :

KOREKOTE GR has a shelf life of 6 months from the date of manufacture. The product should be stored in cool & dry place.

Lids of partly used Carboys should be replaced tightly.

STANDARD PACKING :

KOREKOTE GR is available in 20 Kg Poly carboy/bucket.

SAFETY PRECAUTIONS:

  • Remix the carboys contents thoroughly before transferring it to the dilution tank.
  • Monitor the viscosity at periodic intervals especially after every two hours.
  • Use slow speed mixer to avoid air entrapment during continuous mixing.
  • To avoid formation of bacteria, clean the dip tank weekly.

Korestick – CORE JOINING PASTE

Salient Features :

KORE STICK is a CORE JOINING PASTE used for joining or repairing all types of cores like CO2, NO BAKE etc.This paste after application creates high strength bond which holds cores against high pouring temperature & metal pressure.

It will not allow to swell or blow off. It will not allow to evolve gases during pouring. Also after setting the paste, it will not absorb the moisture.

Grades of Kore Stick & Application :

Mainly there are two grades.
  1. 1.KORE STICK “S” GRADE :- This is used for Joining the cores. It is a fast air drying product so needs partial drying in oven or torch. After drying, two cores are firmly boned.
  2. 2. KORE STICK “T” GRADE :- This is used for Joining the cores. It has high humidity resistance. After application of paste, cores needs to bake properly & then if required can be used with water based washes.

PACKING :

1 Kg. Plastic Bag, 1 kg. Plastic Bottle, 6 kg. Tin

SHELF LIFE :

KORE STICK “S” GRADE – 4 MONTHS, KORE STICK “T” GRADE – 45 DAYS

STORAGE :

Store in a cool & dry place.

Korefinish 4T

DESCRIPTION :

KOREFINISH – 4T is a Graphite water base refractory coating for sand moulds and cores. The coating can be used in the manufacture of ferrous casting. When the mould or core is coated with KOREFINISH-4T, it enhances surface refractoriness thereby improving the surface finish of the casting. KOREFINISH-4T is formulated for dip and brushing application.

HOW TO USE :

KOREFINISH -4T is paste and must be diluted with suitable quantity of water and mixed thoroughly for brushing and dipping applications. The mould and core has to be coated with this paint and torch dried or oven dried.

SPECIFICATION :

Property

Product Name

KOREFINISH -4T

Appearance

Blackish Paste

Properties Of Paint After Mixing With Water

Qty.of water

220 ± 10gms

Qty. of KOREFINISH -4T

200 gms

Sp.Gravity

1.23 to 1.30

Viscosity by B4 Cup

15 – 18sec.

Peel off

Nil.

SHELF LIFE : 6 MONTHS

PACKING: 20KG HDPE BAG.

KOREKOTE IZ 380

DESCRIPTION :

High solids spirit based zircon coating in a creamy liquid.

KOREKOTE IZ -380 is an almost ready –for –use spirit based zircon dressing with high solid & excellent suspension characteristics .It is thixtropic in nature which enable good application properties by brush or swab. KOREKOTE IZ-380 gives excellent casting finish on steel, and cast iron based compositions.It is suitable for all types of binders backgrounds including resinous binders.

PURPOSE :

The refractory properties of Zirconium silicate are utilized for coating sand moulds and cores to impart good finish on the castings.The coating layer effectively resists metal penetration and sand fusion on the casting surface.

Conventional spirit based zircon dressing need a lot of care in preparation ,application and drying stages to achieve satisfactory results .Besides this,carrier content in the conventional washes is higher and it seeps into the mould/core surface with a possibility of a sand face weakening.Because of dripping ,wastages are also on a higher side.

KOREKOTE IZ-380 ,because of its excellent suspension properties and easy remixability requires minimum preparation.High filler to carrier ratio and high gel strength of KOREKOTE IZ -380 allows very small seepage into the mould/core face,hence chances of sand surface weakening are minimized .This makes KOREKOTE IZ-380 suitable for even organic binder backgrounds.Thixotropic nature of KOREKOTE IZ-380 also ensure non drip character and consequent reduction in wastage.

Good casting finish and reduced fettling :KOREKOTE IZ-380 develop a refractory layer upto 1mm thick in a single application and ensures good casting finish with reduced fettling costs.

Higher coverage and minimum wastage : KOREKOTE IZ-380 ,because of its heavy filler loading ,gives much higher coverage than a conventional spirit based zircon dressing in liquid form .Up to 40% more coverage may be obtained with KOREKOTE IZ -380 at the same coating thickness .Easy remixability and negligible dripping ensure minimum wastage as compared to conventional wash.In addition mould dressing time is reduced because the coating is required to be applied only once.

EASY PREPARATION :

Excellent suspension and easy remixability of KOREKOTE IZ-380.Ensure rapid preparation of the coating making it ready for use.

Low gas content and low carbon pick up : Organic content of KOREKOTE IZ -380 is far less than conventional spirit based washes,hence it generates much lower gas .Also the possibility of carbon pick up from organic is minimum.This makes it especially suitable for low carbon alloys steel casting applications.

APPLICATION :

  1. 1. Dilute it with Spirit  for usages wherever required.Mix by hand to make the product ready –for –use.
  2. 2. While painting ,move the brush/swab at a speed that allows you to build the desired coating thickness.
  3. 3. Dress the large moulds or cores in parts and ignite the painted area immediately to avoid solvent loss by evaporation.
  4. 4. Close the container lid immediately after the required amount of KOREKOTE –IZ380 is taken out.

TYPICAL PHYSICAL PROPERTIES :

  1. 1. Specific gravity : 1.60 -1.85gm/cc
  2. 2. Colour : Faint Green.

STANDARD PACKING :

30kg poly bucket.

SHELF LIFE AND STORAGE :

KOREKOTE –IZ 380 has a shelf life 6 months

PRECAUTION :

  1. 1. KOREKOTE –IZ 380 is Inflammable andshould be kept away from flames/high heat.
  2. 2. Replace the container lid immediately after the required quantity of material is taken out to avoid solvent loss.

Korekote ZR

DESCRIPTION :

KOREKOTE –ZR : is Spirit based Zircon coating for spraying and brushing applications. A ready to use dressing having excellent suspension and coverage properties,suitable for casting high temperature steel and cast iron.

APPLICATION :

1. Product is used for all green sand ,CO2 set and resin bonded sand mould and cores.

2. Suitable for spraying ,Brushing ,types of applications.

3. Product is specially formulated to ensure high refractory ,non-wet table and non –reactive coating layer with optimum application properties to ensure an excellent casting finish.

ADVANTAGES :

1.Imparts excellent casting finish ,free from sand burns and fusions.

2.Coating inclusions are not caused.

3.Product is easily re-mixable due to better suspension properties and gives uniform coverage ,which ensures a good casting finish ,free from veining ,fins,fusion and penetration and hences lowers the casting cleaning costs.

SPECIFICATIONS :

  1. Colour : Faint Green.
  2. Sp.Gravity :- 1.60 +/ 0.03 gm/cc

STORAGE AND HANDLING :

The product should be stored at a room temperature under the roof and away from direct sunlight and moisture.Use of safety gears and gadgets is a must while handling the above product.

SHELF LIFE :

KOREKOTE ZR has 6 Months shelf life.

PACKING DETAILS :

KOREKOTE ZR is supplied in 20 kg Poly bucket.

PRECAUTION :

The product should be stored in a cool and dry place.

Korefill Paste

DESCRIPTION :

KOREFILL PASTE is a refractory material specially developed for patching or sealing areas of the cores during assemblies.

TYPICAL PROPERTIES :

1.Color: Off white paste

2.Specific gravity: 1.50 to 1.75

ADVANTAGES :

1. Low gas evaluation

2. Applicable for all types of cores.

3. Easy to use as a product in a paste form.

4. High refractories and hardness .

5. Minimizes felting operation.

APPLICATION :

KOREFILL PASTE can be applied directly on the cores which are subsequently torched or dried in the oven for one hour at 110 0C . In case water based paint is applied on the cores, drying operation can be undertaken for paint and paste at the same time.

STORAGE AND HANDLING :

KOREFILL PASTE should be stored at room temperature and under roof and away from direct sunlight and moisture. Use of safety gears and gadgets is a must while handling the above product.

SHELF LIFE :

6 months from the date of manufacturing.

PACKING DETAILS :

20 kg in plastic buckets.

Korepowder A10

DESCRIPTION :

KOREPOWDER A-10 is a refractory spirit base coating for green sand /CO2 moulds and cores.

HOW TO USE :

KOREPOWDER A10 powder which have to be diluted carefully for brushing /swabbing applications.Direct addition of excess solvent into the powder and mixing is not advisable.To obtain best results and little quantity of solvent first .Make powder to paste and subsequent add suitable quantity as per the foundry requirement.Themould has to be coated with this paint,lit off and subsequently torch dried.

SPECIFICATION :

1. Appearances: Powder.

2. Colour: Black.

3. Sp.Gravity (Diluted): 1.15 to 1.50

4. Vis.by B4 cup @ 30C: 12 to 15 sec

SHELF LIFE :

KOREPOWDER A-10 has 1Years Shelf life.

PACKING DETAILS :

KOREPOWDER A10 is supplied in 20kg or 50 kg HDPE Bags.

PRECAUTION :

The product should be stored in a cool and dry place.

Korestick HH

DESCRIPTION :

KORESTICK HH is a CORE JOINING PASTE used for joining all types of cores like Shell ,CO2,Oil sand & No –Bake etc. This paste application creates high strength bond which holds cores against high pouring temperature & metal pressure.It will not allow to swell or blow off.There is minimum evolution of gases during pouring.Also after setting the paste ,it will not absorb the moisture.

PHYSICAL PROPERTIES :

  • Colour : Faint Yellow.
  • Appearance : Paste.
  • Specific Gravity : 0.9 – 1.1gm/cc.
  • Tensile strength : 10 – 15 kg/cm2.

(Tensile (dog bone ) shell cores ,cut into 2 halves apply KORESTICK HH ,(use preheated shell cores having surface temp.250C)

PROCEDURE FOR CHECKING TENSILE STRENGTH :

KORESTICK HH is having faster drying properties .Shell core cut into two halves should be kept in oven at temp.250C for half an hour.Remove the cores after half an hour & apply KORESTICK –HH immediately &press for 5 minutes .After cooling of cores ,check the Tensile strength .It can be used with water base coated cores.This product has a maximum store life of 45 days.

PACKING :

20 kg,25 kg plastic bucket.

STORAGE :

Store in a cool & dry place.