Jim, I received some feedback to your question from a manufacturing plant that uses HF1189A. That feedback is as follows: The use of HF-1189 flux in our soldering machines required only the changes to increase the amount of flux being removed from the boards prior to soldering. We do not even check the specific gravity, we change the flux once a week. Basically nothing else has changed. The parameters are specific to part number. Please note this is a foam fluxer. If you have any other questions contact me at (310) 334-4757. Tom Carroll Hughes Aircraft Company [log in to unmask] _______________________________________________________________________________ Subject: wave soldering with w.s. flux From: [log in to unmask] at CCGATE Date: 5/3/95 3:09 PM Hello! We are a supplier of electronic assemblies primarily for the military. We are in the process of switching over from RMA to water soluble flux (Kester 1189A). Typically, rosin flux has a density of .890, which the flux density controllers on automated equipment can easily control. Kester's 1189 flux has a density requirement of 1.2. Standard flux density controllers can only be dialed up to .999, so how do I control the density of the water soluble flux? What modifications must I incorporate in my wave soldering process to automatically monitor and control the new flux type? I would like to hear from those who already use the Kester 1189A flux to see how they monitor and control the density. Jim Marsico AIL Systems, Inc 516-595-5879 The following is an attached File item from cc:Mail. It contains information that had to be encoded to ensure successful transmission through various mail systems. To decode the file use the UUDECODE program. --------------------------------- Cut Here --------------------------------- begin 644 rfc822.txt M1G)O;2!I<&,A:7!C:'$N8V]M(51E8VA.970M<F5Q=65S=$!W=V$N8V]M#0I8 M+45N=F5L;W!E+49R;VTZ(&EP8R%I<&-H<2YC;VTA5&5C:$YE="UR97%U97-T M0'=W82YC;VT-"E)E8V5I=F5D.B!F<F]M(&=A9VUE+G=W82YC;VT@*#$Y."XT M.2XQ-S0N,S,I#0H@8GD@141%3C$N2$%#+D-/32`H4$U$1B!6-"XS+3$S(",U M.#@T*2!I9"`\,#%(43)$2DQ'-D8T,#`Q-SE50$5$14XQ+DA!0RY#3TT^.PT* M(%=E9"P@,#,@36%Y(#$Y.34@,3(Z,#(Z-#<@+3`X,#`@*%!35"D-"E)E8V5I M=F5D.B!F<F]M(&EP8R!B>2!G86=M92YW=V$N8V]M('=I=&@@=75C<"`H4VUA M:6PS+C$N,C@N,2`C."D-"B!I9"!M,',V:FYO+3`P,$9(5$,[(%=E9"P@,R!- [log in to unmask]@,30Z,#D@0T14#0I296-E:79E9#H@8GD@:7!C:'$N8V]M("A3;6%I M;#,N,2XR."XQ(",R*2!I9"!M,',V:CA)+3`P,#!':D,[(%=E9"P-"B`S($UA M>2`Y-2`Q,SHR-B!#1%0-"D1A=&4Z(%=E9"P@,#,@36%Y(#$Y.34@,3<Z,3DZ M,#$@+3`T,#`-"E)E<V5N="UF<F]M.B!496-H3F5T0&EP8VAQ+F-O;0T*1G)O M;3H@2FEM($UA<G-I8V\-"B`\(FUA<G-I8V\E3W)G86YI>F%T:6]N/4EN9'5S M=')I86P@)B!-9F<G9R!%;F=I;F5E<FEN9R5496QE<&AO;F4]-3$V+34Y-2TU M.#<Y(D!A,2YA;&QI;C$N04Q,24XQ+G5M8SX-"E-U8FIE8W0Z('=A=F4@<V]L M9&5R:6YG('=I=&@@=RYS+B!F;'5X#0I297-E;G0M<V5N9&5R.B!496-H3F5T M+7)E<75E<W1`:7!C:'$N8V]M#0I396YD97(Z(&UA<G-I8V]`83$N04Q,24XQ M+G5M8PT*5&\Z('1E8VAN971`:7!C:'$N8V]M#0I297-E;G0M;65S<V%G92UI M9#H@/")L,40V>BXP+D)H02YB:'EF;")`:7!C/@T*365S<V%G92UI9#H@/#@U M-3$T,3,P-3`U.3DQ+S0R-S0Q0$%,3$E.,3X-"E@M16YV96QO<&4M=&\Z(#`P M8S`S-#A`8V-G871E+FAA8RYC;VT-"D-O;G1E;G0M=')A;G-F97(M96YC;V1I M;F<Z(#="250-"D]L9"U2971U<FXM4&%T:#H@/&UI<V\A83$N04Q,24XQ+G5M M8R%M87)S:6-O/@T*4&]S=&5D.B!7960L(#`S($UA>2`Y-2`Q.#HP.#HP,2`M M,#0P,`T*37-G+4-L87-S.B!!3$PM24XM,2!)3U,@4V5R=F5R(&9O<B!635,@ M5C,N,"!00DPQ,C-!("`H55,I($5.1TQ)4T@@,C$M34%2+3$Y.3(-"E@M36%I M;&EN9RU,:7-T.B`\5&5C:$YE=$!I<&-H<2YC;VT^(&%R8VAI=F4O;&%T97-T M+S0U-`T*6"U,;V]P.B!496-H3F5T0&EP8VAQ+F-O;0T*4')E8V5D96YC93H@ &;&ES=`T* end