Terrazzo, marble and polished concrete lose their shine to foot traffic, and the usual fix is a coat of finish that has to be stripped later. Diamond pads take a different route: microscopic diamonds hone the floor itself, using water, until the surface reflects light again. These Clarke Gorilla diamond pads are cut to 14 x 20 inches for your Clarke FM40 orbital floor machine, and the FM40 brochure lists burnishing terrazzo, marble and concrete as one of its jobs.
They come 2 pads to a case, in four grits. Clarke's parts list gives each grit its own color:
| Grit |
Color |
Part Number |
| 800 |
White |
56105748 |
| 1500 |
Yellow |
56105749 |
| 3000 |
Green |
56105750 |
| 8000 |
Orange |
56105751 |
Diamond pads work as a sequence. The coarse 800 grit takes out light scratches and dull traffic lanes. The 1500 and 3000 grits refine the surface step by step, and the 8000 grit brings up the final gloss. A worn floor usually needs the full run. A floor you already restored can stay on a routine of the finer grits to keep the shine. If your floor has deep scratches or lippage, it may need grinding first, which is beyond what an orbital machine is meant to do. For everyday scrubbing between polishing visits, the red and blue Clarke BOOST scrub pads fit the same deck.
Four grits, one machine. Work from 800 up to 8000 on the FM40, one pad change at a time.
Water instead of finish. The pads polish the stone or concrete itself, with no coating to strip later.
Cut to the FM40 deck. A full 14 x 20 inch rectangle that reaches right into corners and along walls.
Genuine Clarke part. The Gorilla pads listed by grit and color in the FM40 parts list.
Lock the FM40 handle upright, tilt the machine back onto the handle, center the pad over the grip face and press until the hooks set. Diamond pads are normally run on a lightly wetted floor. Rinse the pad when you change grits so the coarser grit doesn't carry over. Pads are wear items and aren't covered by Nilfisk's machine warranty except for manufacturing defects.
| Brand |
Clarke (Nilfisk) |
| Part Numbers |
800 grit 56105748, 1500 grit 56105749, 3000 grit 56105750, 8000 grit 56105751 |
| Type |
Diamond impregnated floor pad |
| Size |
14 x 20 in (35.6 x 50.8 cm), rectangular |
| Pack |
Case of 2 pads, one grit per case |
| Fits |
Clarke FM40 ST and FM40 LX |
| Floors |
Terrazzo, marble, natural stone and concrete |
Not sure where to start on your floor? Send us a photo and the floor type, call (855) 601-5678 or email support@oneupcleaning.com, and we'll suggest a grit sequence before you order.
