REFRACTORY PRODUCTS:-Refractories are materials used for furnace construction as they withstand very high temperatures. Types:  Allumino silicate (Fireclay based), Acidic, Basic, Neutral. Our refractory products include.

Castables: - Are high temperature concretes used for furnace lining, patchwork, making/ moulding into shapes, blocks, etc.

Mortors: - used for refractory brick laying bonding

Ramming mass is refractory can used for ramming in Induction furnaces and special shapes

MOLYCAST  HS  is similar  to MOLYCAST  145 but with higher mechanical  strength up to 14000C Apart from the applications already mentioned for MOLYCAST -145  we might add
blast furnace wear plates, settings, down comers, off-takes, uptakes dust collectors, health blast mains, bustle pipes, combustion chambers of incinerators, gas cleaners etc can also be sued for placement by pneumatic gun in some areas of petro chemical industries and  in cyclone linings etc.

MOLYCAST SUPER is a high strength general purpose castable with 70% alumina content for use upto 1450 0Cthe high green

as well as fired strength makes it eminently suitable for use in Boiler settings and general maintenance at thermal power stations etc.   
   
MOLYCAST LW is an insulating castable to withstand temperatures up to 1100 0C

SILMAXCRETE 60 & SILMAXCRETE  ESLI :-  These are specially designed and formulated for meeting stringent special conditions in use like reducing atmospheres etc. They can withstand high mechanical and thermal stresses up to 16000C .They are also eminently suitable for casting of burner blocks and other complicated refractory shapes. silmaxcrete  ESLI is an extra strength mullite based low iron castable with possible applications in aluminium holding and melting furnance doors, roofs cement and lime rotary kiln hoods  foundry ladles, incinerator combustion chamber floors pertrochemicals and refining process furnances, heaters, boilers stills, continuous steel caster covers etc.

KROMEFIRE  15 & KROMEFIRE 16 :  These are chrome based refractory conretes to withstand temperatures up to 15000C  and 16000C  These are especially suitable for rammed bottoms of reheating and annealing furnaces, forge furnaces bottom which are subject to iron oxide slag attack.  These high strength castables resist acidic as well as basic slags and can be used for black liquor recovery furnaces floors, water cooled furnance wall of stud tube construction  and bottoms of chemical recovery units.

KROMEFIRE is suitable for casting in normal concrete like manner or can be rammed into place or placed by pneumatic gun. The material is hydraulically set and has to be cured for 24 hours before taking into operation.

KROMEFIRE-AL  (Chromal cast ):  This is a high strength castable formulated from high aluminous materials stablised with chrome ore.  It has high resistance to slag and chemical attack, high mechanical strength and volume stability.

SILMAXCRETE  HA SUPER :  A high alumina with Electro corundum base and low iron content.  It has very high hot strength and resist abrasion and erosion.  Resists carbon monoxide attack, hydrogen atmospheres and slag attack, eminently suitable for high temperature operations including fitting of slidegate  refractories in steel industry. 

TECHNICAL DATA ON CASTABLES

NOTE- CCS.1 =        Cold crushing strength after curing and drying at 1100C
          CCS 2 =        Cold crushing strength after firing at temp. Of application
          S.A.T. =         Safe application temperature.

THERMOTEMPITE READYMIXED AIR SETTING MORTARS AND THERMOTEMPITE CERAMIC & CHEMICAL SETTING DRY
 MORTARS (FIRE CEMENTS)

Our ready mixed air setting mortars and dry mortars are specially designed for laying of different qualities of bricks with air and gas tight joints and very high strength from dry to application temperature.

These mortars or fire cements have a great advantage over fire clay which is commonly used for laying bricks. fireclay and ball clay, because of their very structure and formation have a high percent of water and the organic materials during the heating and burning-in the moisture and the organic matter are burnt off at around 500 to 6000C and as a result of this and further heating there is a large percent of shrinkage resulting in loose joints and cracks. This permits flames and gasses in the furnace to enter the loose and cracked joints corroding the refractories almost immediately. Once burning off of the refractory lining is complete the deterioration increases.

Initially one may have to pay 2-3 times the cost of fireclay for mortars but they save almost 10-12 times the cost of refractory lining, shut downs and recurring repairs and labour costs apart from supervision.

This is how there is a great advantage of using specially designed mortars or fire- cements in the place of fire-clay. Theremotempite air setting ready mixed mortars.  Thermotermpite 40 and thermotempite 55 are specially designed to form thin joints with high binding strength and from a  tough impervious bond withrespect to gases and flames.  They can also be used for making refractory mixture for hot or cold; patching up of cracks and holes, Building and repairing baffles and for general furnance maintenance works

THERMOTEMPITE are formulated from finely ground precalcined raw materials   with high plasticity and chemical additives which give high strength even on drying in air. This strength increases when a ceramic bond is formed at higher temperature.
THERMOTEMPITE -40 is ideal for laying firebricks of M.H.D. and H.H.D.  Qualities safely for use up to temperatures of 1300- 1400 0C
THERMOTEMPITE-55  is formulated from high alumineous materials and can be used for laying H H D  and 60-70% Al2 03 bricks for use safely upto 14500C / 15000C

As THERMOTEMPITE IS supplied ready mixed in air tight steel drums care should  be taken not be store them in the vicinity of the furnance or in the open sun.  It is important  to see that the lids are airtight to prevent setting when the drum is opened a partly  consumed it is better to cover the remaining part with a little clean water and put the  air light lid back if it is noticed on opening a drum that there is some free liquid on  the top it must be well worked up with the rest of the contents of the drum to a uniform  consistency before using. If a thinner consistency is desired the material is diluted with  a little water to the required consistency without affecting the setting properties when  these precautions are taken and no air comes in contact with the material it retains the  original consistency plasticity workability and binding strength for even twelve months.

THERMOTEMPITE dry mortars are very economical to use as they can be stored for even a year or more. They are mixed for use only with clean water to the required consistency and in required quantities as per requirements, so that there is no wastage. If one desires an air setting property one may mix the powder with 29 Be mixing vehicle  / water glass/ silicon bonding oil supplied separately to the required consistency  for  immediate use.  The mixed material should be used up as quickly as possible as setting would start with exposure to air. The material which has already set should not be remixed with water or bonding oil and reused as its properties will be changed.
THE THERMOBOND dry mortars are formulated from selected raw materials and compounded with special bonding agents to give a very high workability and bonding strength.  As these are chemical and ceramic  setting the bonding  strength increases with  temperature and sintering starts at about 1100 0C when these are used by mixing with  silicon bonding oil or sodium silicate instead of with  water, the sintering starts earlier  and their softening point also comes down appreciably.
25-23%  by volume of clean tap water over 100% dry mortar shall be mixed  with the mortar thoroughly to obtain the workable consistency.
The preparation of the mortar of the mortar should take place shortly before application and the prepared mass must not be exposed to atmospheric air for long in order to avoid its drying and setting.  The brickwork after application of the mortar should be first air- dried for 8/10 hours before further drying by heat.
TECHNICAL DETAILS

MUROTEX
RAMMING MASS AND PATCHING COMPOUNDS

MUROTEX Refractory ramming compounds are specially formulated and are supplied dry in bags or ready mixed in air tight drums as per your requirement. They can be placed by hand ramming or pneumatic ramming. The ready mixed material contains the right amount to moisture for pneumatic ramming and in case of hand ramming is to be done; only some water is to be added to the material and thoroughly mixed to make it ready for ramming.

MUROTEX – 40 is a general purpose ramming mass similar to fired brick in composition, supplied either dry in 50 Kg bags or ready mixed in drums of 50 Kg. It is available in the normal grading of 0-4mm or can be supplied in the larger grading of larger areas and thickness to be covered.

MUROTEX -55 is a multipurpose high alumina ramming compound available in  grading of 0-1.5 and 0-4mm supplied in 50 Kg bags. It has a ceramochemical bond and can be used for various applications. It can be used for ramming of entire bottoms of furnaces or patching small areas or  ram in place of fallen bricks, for repair, maintenance etc. The finer grade ( 0-1.5) material can even  be used for laying bricks by mixing to mortar  consistency or can be thinned out and used as a coating  but we suggest that  THERMOTEMPITE  ( Firecoat) be used which we have specially formulated for  the purpose. It has 55% alumina  and is crack resistant and can safely be used up to  1450-15000C

MUROTEX - 75 is a bauxite based high alumina chemically bonded ramming mass. The ceramic Chemical bond ensures a good mechanical strength right from 2500C It is very useful especially for monolithic lining of ladles and furnace linings in the ferrous industry.

MUROTEX – 60 K is a mulite based low iron phosphate bonded ramming mass with many applications in the ferrous and non-ferrous and non- ferrous industry. It is supplied dry in 50 Kg bags with required quantity of separate mixing liquid to be mixed before ramming, or ready mixed in 50 Kg drums. The ready mixed product has a minimum of 6 months shelf life.

MUROTEX SIL 90 & 90 G is specially blended silica based wet ramming masses for furnaces melting pig iron and non ferrous alloys. It is extremely useful for patching and lining of cupolas and ladles.  It has minium 90% sio2 with a ceramochemical bond 90 G is similar but has 5 to 10% graphite to improve its résistance to wetting by molten metal.

MUROTEX-FAB 85:    High alumina, fused alumina based phosphate bonded ramming mass with  high volume stability, abrasion resistance can be used for ramming aluminium melting and holding  furnances, pouring spoults, ladles, hearth bottoms and other service areas in the ferrous  industry. This is normally supplied with adequate mixing liquid separately, but can be supplied in ready to use plastic form in air tight sealed drums with approx 6 months shelf life.

CHROMITEX  ( AIRSET):  Chrome ore based air setting  ramming mass is for safe use upto  1450 0C  Especially useful for black liquor  recovery furnances, boilers and other areas where good resistance to scale or acidic or basic slags or encountered is required.

TECHNICAL   DATA   FOR RAMMING   MASSES

NOTE-  S.A.T. -  Safe  application temperature                       *  S.S.T. – Start of sintering.

RAMMING MASSES
FOR CORELESS INDUCTION FURNACES AND ELECTRIC ARC FURNACES
IN THE FERROUS INDUSTRY

MUROTEX- SIL 99
(RAMSIL-99):  A silica based acid dry ramming mass formulated from selected quartz/ quartzite to give a very dense body to withstand severe operational conditions.  This product is formulated, especially for coreless induction furnaces melting a widerange of cast iron including SG iron and mild steel.
SPECIFICATIONS:
Grading: 0-4 mm/ 0-6mm/ 0-10mm as specified by consumer
Rammed B.D. Minimum 2.0
Sintering Starts:  12000C (with 1.5% sintering agent)
Sio2 % 99% min
Safe operation temperature:  1650 to 1700 0C

NOTE; - The sintering agent is not mixed and the consumer is advised to mix the required percentage of the sintering agents as per the type of metal being melted and the existing practice in the foundry.
METAMAGNUM – IF
(PERIRAM- IF)  Basic dry ramming mass based on dead burnt magnesite and chemical addetives and spinel bonded to give a dense rammed body with high resistance to basic slags in the making of a alloy steels in medium and high frequency coreless induction furnances.
SPECIFICATIONS
Grading: 1.5mm
Setting: Chemical
Sintering starts: 8000C
MgO%: 70 + 2%
Safe application temperature:  1700   to 1750 0C
METAMAGNUM – M A:  Magnesite based dry ramming mass for ramming the body of coreless induction furnaces melting alloy steels. It gives a dense rammed body which can withstand attack of basic slags eminently. It is spinel bonded to give volume stability and no chrome pick up.
SPECIFICATIONS
Grading: 0.5mm
Setting: Chemical
Sintering starts: 8000C
Safe application temperature:  1700   to 1750 0C
MgO%: 70-75%

METAMAGNUM – RAM 84:  Magnesite based ramming compound for ramming hearths and hot and cold patching of Arc furnaces.

SPECIFICATIONS
Grading: 0.3 OR 0-5mm
Sintering starts: 8000C
MgO%: 80-83%

Note:   Instruction sheets for all the above ramming masses will be dispatched along with the ordered material.