For 50 yrs I have used Industrial methylated spirit ( 74OP IMS) It is cheaper than ethyl alcohol....does the same job as it is ethyl alcohol containing a part of methyl alcohol No duty charged Until recently I would buy 25 L drum Carl Hobbs FIBMS Histology and Imaging Manager Wolfson SPaRC Guys Campus, London Bridge Kings College London London SE1 1UL 020 7848 6810