Sanding Polishing

Marble Grinding and Polishing – Abrasives and Types

Marble Sanding and Polishing are two processes performed in sequence to achieve perfectly smooth, homogeneous, and scratch-free surfaces. These stages are essential to enhance the shine of even the most precious marbles, such as white marble, Botticino marble, travertine, onyx, dark marbles, natural stones, and granite. Marble polishing machines, both manual and automatic, use a wide range of specific abrasives at different stages of the process, from the initial roughing to the mirror finish.

Abrasives for Marble Sanding and Polishing

Marble abrasives are essential not only for the initial processing but also for maintenance and restoring shine over time. By using a sequence of progressive abrasive grits, it is possible to reduce surface roughness and achieve a natural gloss. The abrasive grits range from Gr. 30 for the initial roughing to Gr. 3500, ideal for a mirror-like glossy finish.

Available Types of Abrasives for Marble

Marble abrasives are made in various shapes and materials, designed to suit any type of processing and machine. The available types are:

• Magnesite, synthetic, and polishing abrasive plates and pads.

• Magnesite, phenolic, and 5 extra Frankfurt abrasives.

• Frankfurt swivel with Scotch-Brite and Frankfurt abrasive rubber pegs for even sanding on marble and natural stone, without circular marks.

• Sponge Frankfurt for mechanically polishing hard stones.

• Magnesite, diamond, and resin sanding and polishing tools.

• Cassani segments, Genovese dots, and cuboids for marble floor polishing.

• Magnesite rollers with screw attachment for granite floor polishing.

• Abrasive pads, synthetic fiber, or diamond discs for surface cleaning and restoration.

• Flexible resin abrasive discs for sanding, polishing, and restoring on-site floors.

Thanks to the quality and technological innovation of the latest generation abrasives, it is possible to achieve top-level finishes on any marble surface, ensuring durability, uniformity, and long-lasting shine.

Marble Floor Sanding and Polishing

One of the most requested treatments is marble sanding to remove scratches and imperfections, restoring the surface to its original condition. The process continues with professional polishing to give the surface a shiny, reflective effect, enhancing its natural beauty.

Stages of Marble Sanding

Depending on the grit used, different levels of sanding can be distinguished:

• Roughing (Gr. 00 - 1) → to remove teeth and level

• Coarse Sanding (Gr. 60) → removal of surface marks

• Medium Sanding (Gr. 120) → surface uniformity

• Fine Sanding (Gr. 220) → preparation for polishing

• Semi-Gloss Sanding (Gr. 400) → semi-gloss effect

Marble Polishing

After roughing and sanding, marble polishing is carried out with specific products, including 5 Extra Cassani segments, polishing powders, and oxalic acid, to achieve a mirror-like shine.

The main stages of floor polishing include:

• Grouting of joints, cracks, and scratches with marble filler

• Roughing and leveling to remove unevenness

• Sanding with professional machines

• Mirror-like polishing with polishing powders or oxalic acid

Modern marble polishing machines allow for speed and pressure adjustments, ensuring a more delicate and effective processing even on sensitive surfaces such as marble, stone, onyx, palladian, and terrazzo floors.

Micro-sanding: a quick and cost-effective solution

For the regular maintenance of marble and the removal of superficial scratches, micro-sanding can be chosen, a less invasive technique that minimizes dust and noise. This treatment can be performed with a single-disc machine or a floor polisher. Micro-sanding uses abrasive pads, felts, or diamond discs, ideal for polishing marble, granite, and concrete.

Maintenance of Sanded and Polished Marble

The duration of grinding and polishing depends on the level of footfall and the use of the surface. To keep the marble always shiny, we recommend regular cleaning with neutral detergents specifically for marble. Proper maintenance helps preserve the material's lustre, aesthetics and durability, avoiding the need for costly and more invasive interventions.

Do-it-yourself marble polishing. Why choose our marble polishing products?

• Wide range of abrasives for every need

• Innovative materials for greater durability

• Solutions for craft and industrial use

• Professional polishing for all types of marble and granite

• Advanced technologies for polishing and surface restoration

If you are looking for high quality abrasives and marble polishing products, please contact us for customised suggestions or technical advice!