I seem to remember the same problem - acetone sort of removed the gunge but more moved it round the sail! Try white spirit and follow with diluted washing up liquid.
"Without resorting to pricey, proprietary 'sail number adhesive remover' I use WD40, which seems to work OK and doesn't leave a sludge/slurry/residue or other unsightly mess (apparently it's based on fish-oil [may be an urban myth!]). If you try warming the numbers with a hairdryer before peeling them off the sail more adhesive seems to stay on the number rather than the sail."
Gareth Griffiths Notting Hill Rigging Co
Following thread does anyone know what is recommended for laminate sails?
You want a toluene based glue remover. It's not cheap and quite toxic but it will do the job better than anything else.\r\n\r\nBeware of glued seams through!
The toluene based product should be ok. Just avoid the seams. It's fast evaporating.
"I went with a 'graffiti remover' off e-bay, brilliant and left absolutely no residue/sludge and didn't impact the sail material at all."
"Chris , I had a similar problem when sailing Sigmas and the answer seemed to be thinners for antifouling which removed the gunk and then sprinkle with talcum powder which sticks on any remaining stickiness."
Cheers Chris M...
Cheers Chris M...
"I recently bought a second hand set of sails and wish to renumber the main which is made of sailcloth, not anything exotic. The black numbers come off easily enough but leave the number still there in an unattractive ""sludge"" brown which I guess is the old glue. I believe that this can be removed with acetone but judging from first attempts, I will need vats of it to clear the brown. Has anyone got surefire tips on how to remove without damaging the sail and my bank balance please?\r\nCheers,\r\n\r\nChris"
Nail varnish remover (acetone?) I've used white spirit before now aka thinners no.1