If you are going to go down the Osmo route on pine then as it is an oil it will darken the colour slightly, and some might argue make it a bit yellowy. It all depends what look you want to go for. If you prefer the untreated look they have a new product Osmo Polyx Oil Raw, which has a a very small amount of white tint in the oil the aim being to keep the wood as unaltered in colour as possible. You can buy a sample pot for £7. Or you could to to the other extreme and stain them first with Osmo wood wax which comes in various colours. Sample pots are key I think to check you like how it looks before committing to do the whole floor.
p.s. if they are reclaimed/original floorboards rather than reclaimed wood turned into floorboards then I agree with the other posters - try cleaning rather than sanding to keep them as intact as possible (once you sanded off the top surface all the patina has gone).
p.s. if they are reclaimed/original floorboards rather than reclaimed wood turned into floorboards then I agree with the other posters - try cleaning rather than sanding to keep them as intact as possible (once you sanded off the top surface all the patina has gone).
