Dear Tomasz,
Another source of Kel-F might be:
3M Industrial Chemical Products Division
Building 223-6S-04, 3M Center
St. Paul, MN 55144-1000
Tel. 612/736-1149
The nearest branch would be:
3M Deutschland GmbH
PO Box 100422
D4040 NEUSS 1, Germany
Phone 2101-140
Best regards
Albert
-----------------------------
Dr. H. Albert Gilg
Lehrstuhl fuer Angewandte
Mineralogie und Geochemie
Technische Universitaet Muenchen
Lichtenbergstr. 4
D-85747 GARCHING - Germany
Tel.:++49/89/3209-3196
Fax.:++49/89/3209-3205
e-mail: [log in to unmask]