Wednesday 4 March 2015

Different Methods of Stone Restoration and Their Implementation


The biggest disadvantage of using natural stone for exterior and interior purposes is that it loses its shine and vitality due to prolonged or continuous use.  Despite this risk, we always prefer installing natural stone because upon installation it adds to the beauty and splendor of our homes and workplaces, primarily because of its shine and polish.  Therefore, loss of shine reduces the value and glory of a stone and at the same time demands immediate and expert attention.

There are mainly four basic methods of creating shine on natural stone surfaces, namely buffing with polishing powder and compound, diamond grinding, crystallization and applying barrier coatings. Different stone types require different methods for restoration of shine and at times application of more than one method may be necessary.

Polishing powder and compound are fine grains of aluminum or tin-oxide abrasive powder which are buffed on the surface of the stone to create the shine. Often this process is also augmented by adding oxalic acid to create a reaction similar to crystallization. This process has several advantages such as it gives a natural appearance with high sheen, produces a relatively durable finish, compounds used do not etch the floor and this method is applied periodically and not daily or weekly. However, this process of stone repair is a bit messy and requires additional cleanup work. It also requires sophisticated equipment such as floor machine mop bucket, etc. and if it is not handled by a skilled professional, it might affect the surface.

Grinding with diamond abrasives involves grinding the stone surface with different grits of industrial grade diamonds that are generally in three to four inch diameter discs. The process continues with even finer grits of diamond unless the shine and luster is achieved.  Diamond grinding is the most durable method offering a long-lasting finish. This process also removes all scratches and works very well on marble and granite. Nevertheless, this method is not free from disadvantages. The method is costly, requires a preliminary restoration of floor and its effectiveness vary with the types of stones.

Coating involves waxing the surface to produce an artificial shine.  It makes use a liquid or semi-liquid form of wax or urethane which is applied on the surface with a sprayer. This method is not recommended for porous stones.  This method involves less expense and provides good slip resistance.  But it doesn't provide a natural appearance, dulls very fast, requires daily buffing and creates a mess and damages the stone.

Finally, crystallization involves a process whereby a chemical called fluorosilicate is sprayed over the surface and buffed subsequently to form glass like crystals on the surface.  This process is very durable and gives a natural shine to the stone. It can also be used with ease and do not create any mess. It even removes fine and heavy scratches. However, this method may cause discoloration or yellowing of the stone. It requires periodic stripping and has limited effects on granite.

Methods of restoring natural stones are manifold. It only requires a proper choice of the processes and skilled professionals to implement it. The Marble Man, Australia’s finest natural stone restoration company specialises in stone maintenance and restoration works. For any matter related to natural stone restoration or marble floor restoration, call their experts right now on 1300 627 626.

No comments:

Post a Comment