Go Back   Home > Forums > Design & Build > Parts

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 24th December 2007, 02:28 AM   #1
diyAudio Member
 
Join Date: May 2006
Default Conformal Coating / LPKF Solder-Lac

At work we use a spray lacquer type stuff called Solder-Lac that we buy from LPKF. We use it to coat freshly milled bare copper PCB's to prevent them from oxidation. It takes a day or two to completely dry, but when you go to assemble or repair the board (weeks to months later) the copper is not corroded at all and the coating acts like a flux agent. LPKF of course claims this is something special that their coating does.

Question: Are there other coatings that do the same thing with the fluxing action when you heat the coating with a soldering iron? The LPKF Solder-Lac product is expensive ($20USD/6.6fl oz) and if it's just something else re-branded I would like to find the cheaper version. Thanks!
  Reply With Quote
Old 24th December 2007, 04:23 PM   #2
KSTR is offline KSTR  Germany
diyAudio Member
 
KSTR's Avatar
 
Join Date: Jul 2007
Location: Central Berlin, Germany
I use SK10 spray flux, of Kontakt Chemie / CRC industries (crcind.com). It seems to be very similar (takes *at least* two days to fully dry). It is not to be used as a true sealant, though, it degenerates under influence of high humidity/temperature and then will not provide anti-corrosion protection. There, urethane based coating does better (but doesn't have flux support while still being "solderable", IME), it is also claimed it has better electrical characteristics.

Price (here in Germany) is ~7EUR/200ml (~6.6 fl.oz) or ~10EUR/400ml, which look quite a bit cheaper than the LPKF stuff. I don't know if it is available outside the EU.

http://www.crcind.com/wwwcrc/msds/AB27450-3.htm

- Klaus
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
PCB coating rs1026 Parts 10 2nd December 2011 11:08 PM
LPKF Routing Machines wrenchone Everything Else 0 23rd May 2007 08:26 PM
LPKF HI-P Automill Bakmeel Parts 1 15th October 2006 12:02 PM
PCB coating jondavis Parts 3 4th June 2005 10:09 AM
LPKF EasyContac Mr Teal Parts 0 23rd January 2005 05:04 AM


New To Site? Need Help?

All times are GMT. The time now is 03:51 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2