One of the best, if not the best currently available, is Professional Audio Tape Head Cleaning Fluid, #S-721H. It is not alcohol based.
The label reads: S-721H is formulated to clean audio, video and computer tape heads, tape guides, capstans and pinch rollers. S-721`H will removr tape oxides, tape adhesives, soils, oils, waxes, greases and other various contaminants while still maintaining the desirable properties of low toxicity Unlike alcohol, S-721H is non-hygroscopic, eliminating moisture or residue which can settle on components. This will promote extended life and healthy texture to the pinch roller.
I have no affiliation with the manufacturer.
http://americanrecorder.com/catalog/product_info.php?cPath=12&products_id=97
I also like the MG Chemicals products: ie, Rubber renue and Tape Head Cleaner. You can do a google search for MG Chemicals. YMMV.
Jon
The label reads: S-721H is formulated to clean audio, video and computer tape heads, tape guides, capstans and pinch rollers. S-721`H will removr tape oxides, tape adhesives, soils, oils, waxes, greases and other various contaminants while still maintaining the desirable properties of low toxicity Unlike alcohol, S-721H is non-hygroscopic, eliminating moisture or residue which can settle on components. This will promote extended life and healthy texture to the pinch roller.
I have no affiliation with the manufacturer.
http://americanrecorder.com/catalog/product_info.php?cPath=12&products_id=97
I also like the MG Chemicals products: ie, Rubber renue and Tape Head Cleaner. You can do a google search for MG Chemicals. YMMV.
Jon