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Monday, April 21, 2014

Question

What is the best finish to keep old, high traffic terrazzo hallways appealing with a wet looking, high gloss appearance?


Answer

I can't give a definitive answer to that question since there are numerous terrazzo seals and compatible finishes available from many reputable manufacturers.

The appearance starts with careful floor preparation.Remove the old finish with the proper stripper and procedures and apply a good seal to level the floor materials. Then place several coats of finish allowing the correct time for drying between coats. Some like to burnish the coat placed just before the last one to smooth the surface and enhance the gloss. Try it to see if it makes a difference in your look.

Retainiing the appearance you describe is a matter of careful maintainence. You must keep dust and grit off the surface and mopping or autoscrubbing demands the use of a non-residue leaving detergent. Detergent film and other sticky stuff left on the floor will make it look dull and will attract and hold abrasive soils. There goes your high gloss look.

Never burnish a dirty floor, and the same advice goes for recoating. Every thing foreign must be gone from the surface to keep the wet look. Of course, the finish you choose must be formulated for that look, so check that before you purchase and apply.

Consult with your local Jan-San supplier for their recommendation as to product. If they are ISSA members who attend the annual show, they will have up-to-date information on choice products for your application.

Lynn E. Krafft, ICAN/ATEX Editor
lekrafft@juno.com