Hello Lloyd and All,

I had the same problem, with a DuPont Epoxy paint that required mixing the Epoxy with the paint (not sure what one-part and two-part means). 

Sorry for my wording Lloyd. The epoxy the beekeepers used was already mixed in one can. Sold by Home Depot etc. for use on floors 

The DuPont guy told me that the chemical content of what I bought was the same as the Food Grade they sell, but the Food Grade sells for 3X the price.  

I have been told the same thing by two different paint brand sellers.

You answered my other question also Lloyd and I now believe I can simply epoxy over my existing sealer without a problem as zero moisture will come between the floor and the epoxy 
Thanks again for the reply!
Bob