Electronics Forum: white residue no clean flux (Page 1 of 19)

How to clean white residue

Electronics Forum | Mon Jul 01 00:09:47 EDT 2002 | Ben

Hi all How can I clean the white residue between QFP 0.5 mil Pitch? The white residue was created from mistake adding liquild No-clean flux Lonco 23F for reworking clean board. I can clean almost of it by using EC7M cleaning solvent except between

white residue

Electronics Forum | Wed Jan 27 19:42:34 EST 1999 | parag palshikar

i am working with the noclean process and getting white residues on the bottomside of the board probably due to the wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated temperature a

How to clean white residue

Electronics Forum | Mon Jul 01 20:44:17 EDT 2002 | davef

Actually, the white res were caused by the water carrier in your Lonco 23F reacting with the res from the nc flux used to solder the component in place. Comments are: * Some nc flux res are cleanable, some are not. Your supplier [Alpha?] can probab

How to clean white residue

Electronics Forum | Mon Jul 01 22:24:10 EDT 2002 | Por

Thanks for your advise Normally, We do not add any liquid flux (clean or No-clean) during touch up process but this case is an error. Lonco 23F is Nc flux. but our board is clean. However, there are 6 boards that found the white residue and our

Re: no clean rework

Electronics Forum | Wed Aug 18 15:52:21 EDT 1999 | DENNIS FOWLER

Gian You alarm me when you talk of white residues in a "no-clean" process. This should not happen. It sounds like you have compatibility problems between different residues and/or a poorly polymerised solder mask. Ther

Cleaning after rework, no clean flux

Electronics Forum | Wed Feb 26 22:22:00 EST 2003 | Grant Petty

Hi, The guys here have some boards that have been reworked however as we use no-clean paste we are getting the white residue after ultrasonic cleaning. We are using an alcohol based cleaner in the ultra sonic cleaner. Does anyone have any ideas, or

Re: white residue

Electronics Forum | Thu Jan 28 08:58:10 EST 1999 | Peet

i am working with the noclean process and getting white residues on the bottomside of the board probably due to the wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated tempe

Re: white residue

Electronics Forum | Wed Jan 27 21:02:53 EST 1999 | Dave F

i am working with the noclean process and getting white residues on the bottomside of the board probably due to the wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated temperatu

Re: white residue

Electronics Forum | Wed Jan 27 23:29:28 EST 1999 | parag palshikar

i am working with the noclean process and getting white residues on the bottomside of the board probably due to the wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated tempe

Cleaning after rework, no clean flux

Electronics Forum | Wed Feb 26 23:59:48 EST 2003 | Mike Konrad

Grant, No-Clean paste + IPA = White Residue! #1: Stop using IPA #2: Switch to either a solvent-based de-fluxing chemical or an aqueous-based de-fluxing chemical. If you are using an ultrasonic cleaner for your boards as stated, do not use sapon

  1 2 3 4 5 6 7 8 9 10 Next

white residue no clean flux searches for Companies, Equipment, Machines, Suppliers & Information

Flux Connectivity
Flux Connectivity

Flux is your source for custom cable assembly, wire harness, and electrical enclosure manufacturing. We design and manufacture to your specification and can assist with connector selection, layout, and manufacturing techniques.

Contract Manufacturer / Assembly / Soldering / Test Services / Turnkey

4030 8 Street SE
Calgary, AB Canada

Phone: 1-800-557-3589

Online IPC Training & Certification

World's Best Reflow Oven Customizable for Unique Applications
Industry 4.0 Reflow Oven

MSD Dry Cabinets
Reflow Ovens

PCB Assembly Supplies - ONLINE STORE


SMT Machines, Parts & Accessories - Used and New