Essential Marble Polishing Powders and Compounds: 5X, XXX, 10X, and MPC Applications

A common inquiry in the restoration industry involves selecting the right marble polishing powders and understanding their proper use for achieving optimal results. Testing a small area before beginning any restoration project is crucial. This step ensures that both the expected outcome and the most effective procedure are confirmed, setting the stage for a successful project.

Key Products for Marble Polishing

When it comes to marble restoration, certain polishing powders stand out as industry favorites. The Majestic 5X Gold, Majestic XXX Shine, Majestic Marble Polishing Compound (MPC), and Majestic DiaBrite 10X are top choices for polishing calcareous stones such as marble, limestone, onyx, alabaster, terrazzo, and similar materials. Among these, the 5X Gold is often the go-to product, but having XXX Shine, 10X, and MPC available can be beneficial for tackling particularly stubborn stones. Keeping these products on hand ensures flexibility and effectiveness when the standard solution isn’t enough.

These polishing powders are typically used with a slow-speed single-disc machine, whether for floor work or smaller hand tool applications. Single-disc machines are generally preferred for their efficiency in capturing the product under the disc during the polishing process.

For best results, a natural hair pad—often referred to as a hog hair pad—is recommended. There are various types available, with some containing more hair than others. The Combo pads from SCCPRO are highly effective, though heavier hair pads are also available for those who prefer them. While red pads were once common, they can sometimes transfer dye to high edges, so hair pads are now the preferred choice. The final decision on pad type should be based on what works best for the specific application.

To polish, start by wetting the area with clean water, then apply about a quarter cup of Majestic 5X Gold, XXX Shine, 10X or MPC in a small line. Place the pad and machine over the area and polish a section of approximately 25 to 40 square feet at a time. Make 4 to 8 slow, even passes. If the circles formed by the machine are more than an inch apart, the machine is moving too quickly. A hand-held squeegee can be useful for checking progress. After polishing, remove the slurry with a wet vacuum, flood rinse with clean water (optionally adding a pH Neutral Cleaner), and perform another wet vacuum. For large areas, work in a checkerboard pattern, overlapping sections for a seamless finish.

Experimenting with different machine weights (around 125 pounds is recommended), adjusting the water-to-powder ratio, varying the number of passes, and choosing the appropriate polishing powder for the specific stone are all crucial steps in achieving the best results. In many cases, finishing with a 12,000-grit diamond-impregnated pad (such as the PLP series) can help eliminate heat swirls and leave the marble floor with a pristine, polished finish.

And as always please consult with M3/SCCPRO for technical support when needed.