It all depends what your floor panels are made of,most likely teak and holly veneer on plywood.
In that case the veneer would be quite thin, and with sanding it,the danger of sanding through to the plywood.
My suggestion;clean with acetone or lacquer thinner,if it looks acceptable,apply several coats of exterior urethane or varnish,if compatible with the existing finish.Worst case you might have to strip it.
A pre-catalyzed lacquer will not stand up to foot traffic very well.