Tirupati MetaChems Pvt. Ltd.

Rai, Sonipat, Haryana

Generally, dry silica sand either cochin or Mangalore source / quartz based sand is coated with Phenolic Novalac liquid resin in batch mixture with catalyst and subsequently coated sand is passed through a heating chamber for complete curing. Thus liquid resin gives uniform coating on the sand grains and this sand is used for making cores and moulds in the shell process. The major clients for these grades of sands are automobile foundries, Pump and Motor Casting Foundries, Aluminum Engine Block Manufacturing Foundries, general Engineering Industries, and sanitary manufacturing industries. Our Resin Coated Sand is widely used by all Gray Iron, Malleable Iron, S.G. Iron Steel and Stainless Steel and various types of Non-Ferrous Foundry Castings.
This is a range of a Resin Coated Sand used in production of cores & moulds by shell process with superb hot strength. It is prepared from high grade Silica sand by precoating  it  with phenol - formaldehyde (PF) resin  and catalyst. This resin - coated sand is very smooth, free flowing and dry with good resistance to moisture.

Shell Sand Advantages :

• Extremely flow able, to produce cores / moulds of greater density and compacted ones. Cores and Moulds are less prone to erosion by Metal which reduces Non-metallic inclusions.
• Shell Sands Cores and Moulds have hollow characteristics results in significantly light weight for handling and lowest cost production of castings.
• Deep drawn patterns with tapers of 0.5 to 3 degree can be produced by Shell Process
• High 'Out OF BOX ' strengths of cores and moulds yield castings with high precise dimensional tolerances which lead to reduction in machining allowances, fettling and finishing cost.
• Shell Process renders elimination of refractory coatings
• Shell Sand Cores/Moulds remains usable indefinitely and are unaffected by humidity and resistance to moisture pickup.
• Shell Sands are exceptionally resistance to damage during handling and storing.
• Shell Sands have the ability to make excellent casting time after time, simple to process, operated with unskilled labour.
• Shell Process leads to low capital investment for core/moulds making equipments.
• Shell Process yields less sand handling and less sand consumption per unit casting to be produced.

Packing :Resin Coated Shell Sand - 40 kgs Laminated HDPE Bags / Laminated PP Bags Printed Matter consists of, Date of Manufacture. Batch No. & Bag No.

The MGR Tablet is meant for lowering the presence of magnesium in the molten aluminum. This is in the tablet form up to 1 kg weight. packed in the boxes. It can be plunged in the furnace with the help of plunger directly at an appropriate temperature in the melt.

It is very handy degassing method by means of perfectly compressed table of chemical powder. This compacting is very important to control the rate of table dissolving which ultimately leads to proper release of chlorine gas and C2Cl4 gas for degassing. The releasing of gas bubbles through molten metal removes the non metallic inclusions and thus refine the metal completely.