Sandblasting brick is an effective restoration process widely used in commercial or residential buildings. This procedure restitutes the original appearance of facades. Sandblasting removes the bricks’ dirt and grime, revealing the architectural features and a primary step before painting.
Remove The Accumulated Debris And Dirt
Personnel from sandblasting brick service company remove the accumulated debris and dirt from the brick wall. Light, medium, or high blasts methods are used according to the brick types. A special tool called sandblasting is used to remove dirt, soot, graffiti, and paint.
Different brick types are used in brickwork construction; the material varies from clay, fly ash, concrete, or lime. The experts know the difference and adopt an appropriate method to restore the surface. Soft bricks need light or medium blast for the reinstatement process.
Bricks That Are Sun-Dried
This type of brick is principally used in temporary construction because they are less sturdy. Preparation of clay, molding, and drying are the three major steps to manufacture unburnt brick. The bricks are exposed to sunlight for drying. These bricks are not much strong and less water and fire-resistant.
Burnt Clay
This type of bricks is categorized into four varieties – First-class, second-class, third-class, and fourth-class kind bricks.
First-class bricks are the best among the four, as they are table-molded and scalded in a large furnace. These bricks come with sharp edges, a flat surface, and in regular size. They are more resilient, perfect for a permanent structure.
Sandblasting reduces the smash-up of stone or brick walls and enhances atheistic and architectural features of the frontage. Despite the powerful jet effect on the wall, it does not reduce the structure’s operation properties.
Sandblasting Procedure
Under high-pressure, sand is mixed with air and prayed through a gun into the brick or stone surface. This abrasive jet of sand and air removes the accumulated dirt and gives the wall a pristine appearance. The strong jet removes the bacteria and fungi from the wall surface, which destroys the strength and structure of bricks over time.
Despite the name “sandblasting,” sand is not the only component for sandblasting. Kupper slag, corundum, nickel slag, glass ball, ceramic and plastic shots are used mainly in the restorative process. The chosen material depends on the climate, type of brick, foundation, and nature of dirt and pollutant on the surface.
Sandblasting Is Quite Versatile
Sandblasting is quite versatile and suitable for any brick. This process can thoroughly clean textured, hard burnt, unglazed, and even bricks. The application of sandblasting is extensively suitable for bricks, stone, and wooden structures.
Spraying medium brain sand and compressed air residual cement can be wiped out from the newly constructed wall. Red ceramic brick walls are often stained by efflorescence and precipitation. The crystalline deposit occurs due to salt and water reaction on a masonry surface. These powdery white deposits impact the atheistic value of a building.
Structures made of white silicate bricks are prone to corrosive stains. Balcony furnishings, external fire escape stairs, clamps of electric wire are not coated with anti-corrosive paint and ultimately rust. The rust mingles with rainwater creates rusty red strakes during monsoon; sandblasting can remove these undying stains.
Mold And Mildew
Mold and mildew not only depreciate the atheistic value of buildings but weaken the structure of facades. Sandblasting can permanently eradicate these malicious mold and fungus grown deep in the walls. The facades look fresh when the unsightly black and grey spots are removed.
Before applying fresh paint, the residual old coat needs to be removed. The abrasive spurt of sandblasting thoroughly removes the faded decorative coat, leaving a wholly cleaned wall. Sandblasting gives the wall surface a rough texture which considerably increases the adhesion of freshly applied paint or plaster.
Sandblasting can be applied in various ways, depending on the nature of contamination and the restoration process’s ultimate goal. The most used method is the jet of compressed air and sand, leaving an emery paper effect. This process of sandblasting is known as wet, particularly useful to remove old satins and mortar marks.
Conclusion
Many modern architects prefer to leave the façade unpainted, with sandblasting effect as their designer signature. Sandblasting brick is the most effective and economical way to the brickwork to its pristine appearance, significantly increasing the buildings’ atheistic and real estate value.
