Stone type: brilliant marble polished board.

Lesion condition: When the woodworker installed the stair railing, a large amount of wood chips were piled on the stone and not cleaned in time. After the damp, it left a serious dark yellow stain on the stone.

Treatment material: Q-312S type stone pigment remover.

Construction method:

1 Apply Q-312S stone pigment remover directly to the stain of stone.

2 After about 1-2 hours, the contaminated color is almost completely removed.

Case 6 Stone colorant contamination removal

Stone type: Besha gold beige Dali polishing board.

Lesion condition: colorant contamination.

Treatment materials: Q-320J stone cleaning glue remover, Q-312S stone pigment remover.

Construction method:

1 Cover the non-woven fabric on the dirt of the stone, fully wet it with Q-320J, cover it with a soft plastic film, and seal it with plastic tape.

After 224 hours, the cover was removed, and the above process was repeated with Q-312S after drying.

Precautions:

1 To completely remove the stain contamination, it is difficult to fight, especially light-colored stone may need to be repeatedly cleaned.

2 When other types of stone are contaminated by colorants, they can be treated in the same way.