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Friday, September 19, 2014

Question

Every quarter we scrub and recoat a histology dept.floor. They did not want to pay for strip and refinish. Their stations are caked with paraffin. I have used hot water in my floor machine tank with a degreaser with a black hi-pro pad. We scrape as much as we can. Our labor is about double but we cannot get all of the paraffin off. Any suggestions?


Answer

I can offer a few.
Avoid the degreaser since it will not dissolve the paraffin and reduces the friction generated by the black pad. And its high alkalinity may weaken your floor finish. Try a neutral cleaner for less mess.
Prepare the floor by scraping it with a tool that allows you to stand and work a large area fairly quickly. A hair dryer will heat and loosen the paraffin, but the hot water applied by the machine through the pad will cool too quickly to be of any use in melting the wax.
If you do a good job of heavy scrub and recoat, you can postpone stripping for years. Just don't seal in dirt and paraffin.
Charge what you can for the extra time the floor prep takes and do what you can to cut it down.

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