Why need clean up the acid on the marble

Examine the flooring for authentic marble. Only the natural marble floor may react with the crystallization agent; artificial marble has no effect.

The following is a basic test:

A. As the test unit, choose a tiny, inconspicuous floor and wash it with clean water first.

B. Apply 35 drops of acid (35 percent hydrochloric acid) to the area; if it is genuine marble, the acid would automatically react with the floor (foaming).

C. If there are no bubbles on the surface, it is not a genuine marble floor.

After the test, Please quickly clean up the acid and flush it with water.