What Are The Methods And Steps For Polishing The Surface Of Terrazzo Prefabricated Panels?

The polishing and grinding of the surface of terrazzo prefabricated panels is a multi-step process aimed at achieving a smooth and glossy surface effect. The following are detailed methods and steps:

1, Preliminary preparation

Clean the surface: Before starting polishing, make sure the terrazzo surface is clean and dust-free. You can use a vacuum cleaner, mop, or damp cloth to clean and remove impurities such as dust and oil on the surface.

2, Polishing steps

Surface polishing: Use a suitable grit of grinding disc for preliminary polishing. Note that some methods recommend using 50 grit diamond grinding discs, but there are also opinions that prohibit the use of diamond grinding discs on the open surface of terrazzo floors to prevent abrasion through the partition strips. Therefore, the specific type and number of grinding discs used may need to be determined based on the actual situation and grinding requirements. In general, starting from resin grinding discs with a mesh size of 100 or finer, cross polish horizontally and vertically to ensure even polishing.

Rough grinding treatment: Use a coarser grinding disc (such as 200 mesh) for further polishing to remove surface defects and unevenness. During the grinding process, it is necessary to maintain uniform force and stay at the worn and scratched areas for a longer period of time.

Intermediate grinding treatment: Use intermediate grinding tools (such as steel wire balls and grinding discs) for further processing. First, pinch the steel wire ball into a spherical shape and rub it back and forth on the surface of the terrazzo until the surface becomes smooth. Next, use finer grinding discs (such as 500 mesh, 800 mesh) to perform intermediate grinding treatment on the surface until the terrazzo surface becomes finer.

Fine grinding treatment: Use finer grinding discs (such as 1000 mesh, 1500 mesh) for fine grinding treatment. The purpose of this step is to make the surface of the terrazzo smoother and prepare it for polishing.

3, Polishing steps

Spray curing agent: After the fine grinding treatment is completed, a penetrating cement curing agent can be sprayed to enhance the hardness and wear resistance of the terrazzo. The curing agent needs to penetrate for a period of time (such as 6 hours or longer) to ensure its full effectiveness.

Polishing treatment: Use finer grinding discs (such as 2000 mesh, 3000 mesh) or polishing pads for polishing treatment. The purpose of this step is to make the surface of the terrazzo smooth and shiny. During the polishing process, it is important to avoid scratches and keep the polishing pad moist.

Final cleaning: After polishing, rinse the surface of the terrazzo with clean water and wipe off any moisture. Ensure a clean and dust-free surface to showcase the best polishing effect.

4, Precautions

Throughout the entire polishing process, it is important to maintain even force application to avoid excessive polishing or scratching of the terrazzo surface.

Use appropriate polishing tools and discs to ensure the desired polishing and finishing effect.

Pay attention to safe operation and avoid accidents. For example, wearing personal protective equipment such as goggles, masks, and gloves.

In summary, the polishing of the surface of terrazzo prefabricated panels requires certain methods and steps, including preliminary preparation, polishing steps, polishing steps, and precautions. Through correct operation and practice, a smooth and shiny terrazzo surface effect can be obtained.