I'm trying to tidy up an old table, probably 1950's. It's just the standard 'dark wood' finish but I can't match it. Does anyone know if it would have been a stain or wax?
1950s? Quite possibly oak with a brown oak stain or a Jacobean oak stain, although it might be an African or Far Eastern hardwood, stained. Any chance of a photo?. Depending on if was factory made the finish could be a variety of things. Most factories went onto solvent-based cellulose lacquers after WWII and then later-on onto 2-pack catalysed lacquers, but if it were made as a one-off, or it has ever bbeen refinished, it might have French polish or possibly even a varnish, although wax with stained oak probably isn't a combination and professional would use
To identify the finishes select a small unobtrusive area (e.g. the back of a leg) and try the following:-
Try scraping the surface - French polish producesfine broken shavings which are very friable (break-up easily) whilst varnishes produce a hard yellow shaving
Rub on some methylated spirits - if the finish softens and dissolves it is French polish
If that fails, rub on some acetone - if the finish dissolves instantly it is cellulose lacquer
If neither dissolves the finish then try softening the finish with turpentine or white spirit - if the finish softens with either of these it is probably wax.
If none of the above works you may well have a 2-pack AC (acid catalysed) or PU (polyurethane) finish
This isn't exhaustive, just the most common finishes
The areas that aren't damaged have a lovely patina so I don't want to strip it all back to the wood. (looks like oak)
Depends on identifying the finish first, I'd say. Many finishes are incompatible, hence the need to identify the finish first