Who has experience with UNactivated Rosin "R" base flux in solder paste ? We now use "RMA" fluxed paste, so more details on the PRACTICAL differences (reflow, cleaning) with "R" would be great. Info : our core is military electronic assemblies & avionica. Thanks! ********************************** Ivo de Rooij Process Engineer Surface Mount Assembly Fokker Elmo BV (Fokker Aviation) P.O. Box 75 4630 AB Hoogerheide The Netherlands phone (+31)(0) 164 - 6 17 000 fax (+31)(0) 164 - 6 17 700 e-mail [log in to unmask] **********************************