Hi.If it is linoleum and you haven't got any experience in cleaning this material you may be better walking away from this one. Post some pictures and hopefully the floor can be correctly identified. Will be easier to advise from there.
BUckeye have been around a long time. Finding a stripper that doesnt yellow the lighter colour of marmoleum has always been a challenge.I have a meeting with the Forbo tomorrow so this is interesting news. I will need to trial some as I have never found one yet that can remove thick layers without damage to the colours.