It is not recommended to use this in spots it should be applied to the entire floor.

The Directions are as follows:

DIRECTIONS FOR USE:
1. CLEAN FLOOR TO REMOVE ALL SOIL AND OTHER PREVIOUS PRODUCTS.
2. POUR DIRECTLY TO DRY FLOOR.
3. APPLY WITH A CLEAN SPONGE MOP OR LAMBSWOOL APPLICATOR IN MODERATE COATS OVER ENTIRE FLOOR SURFACE. (DO NOT WORK INTO FLOOR)
4. ALLOW TO DRY APPROXIMATELY 30-45 MINUTES. A SINGLE COAT IS USUALLY ADEQUATE. HOWEVER, A SECOND COAT MAY BE APPLIED AFTER FIRST COAT IS DRY.
5. ENJOY YOUR NEW FLOOR!

*FUTURE APPLICATIONS: SIMPLY REAPPLY-MAY BE USED AS OFTEN AS DESIRED WITH NO BUILD-UP.
EASY FLOOR CARE:
TO CLEAN: USE DAMP MOP WITH WATER & A SMALL AMOUNT OF MILD DISH WASHING LIQUID.
TO REMOVE STAINS & BLACK HEEL MARKS: APPLY PROSHOT TO A CLEAN RAG & RUB OVER STAINED AREA.
THIS PRODUCT MAY BE REMOVED WITH ANY HIGH QUALITY STRIPPER.

This is safe for Marble Floors, although you may find the once dull spots will shine brighter than the rest of you floor depending on how badly you need a polish. If that is the case giving your floor a once over with this product and it will bring it back to a beautiful shine.