Note that for a lot of dirt the lower grades of IPA work better than pure (99.9%). Use 80% IPA for first appliaction with the 99% for the final? clean to absorb the water. You can't get IPA purer than 91% by distillation, the purer grades are dryed chemically hence the higher cost.
I find Methanol works well on the decayed foam and citrus turpene (label remover) for labels.
Robert G8RPI.
