Been repairing a customers terracotta kitchen floor today - not so much tiles as 18 inch square inch thick slabs some of the roughest (largest variations of edges) tiles I have used. Anyway the cracked tiles removed, concrete sub-floor repaired and new tiles laid. Going to seal and grout later this week. That was an education - never worked with anything like it before! Anyway - point of posting is that a builder used too much linseed oil in one area when previously sealing tiles. Been trying to remove resulting stains with some FilaSolv stripper (allegedly removes linseed oil as well as wax) - neat and scrubbed as per manufacturers instructions - still got linseed oil. did think paint stripper might work, but this is outside my experience and need some advice. Can anyone help?