Finishes

          The stone is available in a range of eight smooth and textured finishes:

           waterjet: a non-slip matt finish, produced by working the surface of the stone with
           high-pressure water jets.
           honed: a smooth finish with a slight sheen, produced by using a polishing head.
           sanded: sawn stone slabs are coarsely polished: this removes saw marks and leaves a
           semi-smooth, regular finish.
           cleft: with this traditional treatment the stone is riven along its line of cleavage to reveal the
           natural grain; this gives an undulating surface with great character.
           gritblasted: a high-pressure airline projects coarse-grained grit onto the top surface of the stone
           producing a finish similar to cleft, but available on slabs of greater size.
           flamed: the top surface of the slab is burnt off, giving an irregular textured finish.
           textured: the top surfaces of sawn slabs are pneumatically tooled to produce a pitted or
           grooved surface.

Coating

 
Any material that clings uniformly to the outer surface of the stone. Under some circumstances      acrylic,plastic, or wax materials are used as surface protectants or for cosmetic enhancement.

Etching

 
 A chemically induced marring (marking) of the polished stone surface creating dullness. Depending on the severity, etching may create a tangible roughness on the stone surface. Etching is generally
      caused by acids; this typically occurs when food or acidic drinks contact marble or limestone.

Buffing

      Using a non-abrasive pad attached to a machine which rotates the pad in a circular fashion over the
      stone, generally between 150-300 RPM. Polishing formulations containing micro-fine abrasive materials are used with buffing to produce a more reflective gloss on the surface of stone. Waxes are also used with buffing to enhance the gloss of polished stone.

Honing

      To grind a surface with a high grit material to a uniform specification without producing a reflective
      surface.

Terrazzo

      A man-made stone composed of chips which are mixed with cement and then polished as an
      economical alternative to solid marble slabs or tiles. Care of terrazzo is identical to the care of marble.

      Terrazo 1 :
      Portland CementTerrazzo is a type of flooring using a portland cement matrix composed of marble or granite chips, portland cement and water, to which colour pigment may be added. Other types of
      Terrazzo are available, e.g. epoxy matrix terrazzo polyacrylate terrazzo and epoxy bonded.
      Maintenance procedures on such products should be checked with the manufacturer.

      Terrazzo does not need protection from wear; it needs protection from absorption. That is why water based seal or impregnator should be applied soon after polishing. This absorbed into the cement
matrix, sealing of its pores. It is important that the terrazzo is cleaned before the sealer is applied. New  terrazzo floors should be cleaned only with a neutral pH cleaner. Following this original cleaning allow the surface to dry, then apply the seal immediately. Finish as specified in this manual.
 

Water Jet

      What is Waterjet?
      Waterjet technology is a computerized cold cutting technology that can cut most materials into any
      two dimensional shape. Stainless steel, brass, bronze, raw steel, aluminum, marble, granite,
      porcelain, ceramic, linoleum, sports flooring, and vinyl are all excellent materials for the waterjet
      process. Waterjet cutting is a clear cold process that does not heat, harden, or distort metals.
      Waterjet cleanly and efficiently cuts stone, ceramics, and porcelains.

      Anything that can be drawn on a computer can be cut by waterjet. Many materials like stone,
      porcelain, and stainless steel cannot economically be cut into complex shapes in any other way.

Acidity & Alkalinity

      Opposite terms designating a reactive condition at which substances exist. Acidity in its simplest
      definition is the term applied to a solution with a pH of less than 7. The lower the pH, the stronger the acidity and the higher the pH, the stronger the alkalinity. A neutral pH (i.e. neither acidic or alkaline) is,strictly speaking, 7; but the neutral zone, with regard to stone, is approximately 6 to 8. Another term for alkalinity is basic and substances which are basic are called bases. Acids and bases are reactiveto each other.

      Marble and calcite stones are basic substances and therefore react with acids. Hence, acidic
      substances such as vinegar and carbonated beverages can cause etching of marble. Granite and
      siliceous stones are not basic and, in fact, are chemically much less vulnerable to damage from

Abrasions

      A marring of the surface of marble caused by physical trauma. The marring is generally very slight and homogeneous such that there is no distinguishable border and has no perceptible depth.

Marble Tips

      When the surface of marble is scratched and loses its original shine, the marble needs to be refinished and polished in order to restore the shine it had originally.

      Restoring the shine simply means to smooth the surface until it shines.

      Here are three different procedures needed in succession in order to restore the original shine.

 1. Grinding
 
Grinding is the process by which large scratches and lippages are sanded to make the surface
                 even. The abrasives used have grit sizes 60 or less.

 2. Honing

Honing is same as grinding except diamond abrasives with grit size of 120 or above are used.

 3. Shining
                      2 different methods:

                      (1) Polishing
                      A powdered abrasive is used. Powdered abrasives contain aluminum oxide or tin
                      oxide and usually are white. Most powdered abrasives also contain a compound
                      called oxalic acid which speeds the polishing process. Therefore, too much powder
                      can burn the surface, so special care is needed for this process.
                      This procedure is most widely used.

                      (2) Recrystallization
                      This process consists of spraying a fluid onto the floor and buffing it in with steel
                      wool under a standard buffing machine. The heat generated by buffing with steel
                      wool reacts with the chemical producing a new compound on the surface.
                      This procedure is recommended when too much sunshine causes the uneven
                      reflections on the surface.
 

           *Please note that the grinding and honing are very time consuming and very
           messy processes because it requires lot of water for the lubrication. Some
           hard stones, like a granite, need an entire day just to grind 50 square feet.

            Once the original shine is restored, a regular maintenance is required in
           order to preserve the original shine for long periods of time. For heavy traffic
            areas like a lobby in a Hotel, buffing every day using a steel wool pad with
            special chemical is all you need for keeping the original shine for several
                                        years.

           If a regular maintenance is performed routinely, the grinding process can be
            eliminated when a refinishing service is needed resulting in cost savings.