well... Im a bit confused as to what youre looking for and why? The term Naphta may refer to a number of things. In some south american countries they refer to petrol as Naphta and on an oil refinery, Naphta is unrefined fuel and there are light and heavy Naphtas depending on the boiling point... So its a highly flammable liquid. Arent you looking for Naphtalene? to stop the fish moths from eating your guitar??
Not trying to be silly, but you may end up dosing your guitar in Octane which may not be what you intended ... Cool
He he ok the stuff that Ray is referring to does this:
Behlen Naphtha Solvent
Naphtha solvent is safe for use on most metal surfaces or guitar finishes, to remove waxes, grime, oils and sticker adhesives. It can be used to help remove oils and waxes from wood surfaces before finishing, and is recommended for cleaning oils from fretwire prior to installation.
As per the guys at Stewmac. Unfortunately the stuff they advertise on their site can not be shipped here thus we guys here in S.A. need to get the closest replacement witch is Lighter Fluid.