Electronics Forum | Wed Mar 24 21:40:05 EST 1999 | Dave F
| I am looking into replacing another business division's Acrylic coating process with our Urethane coating process. Unfortunately, MIL-I-46068 doesn't differentiate AR/UR's performance, and the MFR data sheets don't match up at all (they each spec
Electronics Forum | Tue Sep 30 20:55:14 EDT 2008 | davef
Residues from different no-clean fluxes produce different levels of variation in RF circuits. Some no-clean fluxes work fine. Following this, a no-clean flux can produce different levels of variation in RF circuits depending on the process setup.
Electronics Forum | Thu Jun 10 21:09:17 EDT 1999 | Samuel F.
Humiseal probably won't work as most of them are solvent based or require pretty high temp cures. MicroCoat technologies manufacturers UV cure epoxy conformal coating materials that have been used to coat just about anythin (except the green fog) Cal
Electronics Forum | Wed Aug 26 10:48:30 EDT 2009 | grahamcooper22
Some print expiry date on reels and some specify a shelf life on data sheets. Two main reasons are that the flux in the wire is a mix of chemicals and over time in storage these can react so soldering performance can be changed. Although I have to sa
Electronics Forum | Sat Oct 22 22:10:09 EDT 2011 | unisoft
Hi maybe this will help Rich larue rlarue@unisoft-cim.com ProntoGERBER-CONNECTION ( http://www.unisoft-cim.com/gerber_connection.htm ) imports raw Gerber data and allows the user to add intelligent information to the shapes on the display and c
Electronics Forum | Sat Jun 17 09:09:15 EDT 2000 | Chrys Shea
Contact the adhesive manufacturer, or their website. Most adhesive suppliers offer two cure options - one with a belt oven profile and one with a box oven profile. The belt oven is usually a ramp and plateau of 120-150C for approx 2 minutes. The b
Electronics Forum | Mon Jun 12 14:16:23 EDT 2006 | Kip the Expert at all Things SMT
Hi. I agree that the Soltec has weak, low-wattage preheaters, and also, the Soltec's fluxer is flippin' weak too. It doesn't do a good jab of atomizing the flux and getting good, huh-huh, penetration on the holes. I cranked up my Soltec's pressu
Electronics Forum | Thu Jun 27 08:47:21 EDT 2019 | SMTA-John
Having success with Circuit Boards #432 Solvent Resistant Ink - Designed specifically for circuit boards. This medium dry ink is highly resistant to solvents .... It is also non-conducting. Note: this ink contains an aggressive solvent so should not
Electronics Forum | Wed Oct 17 10:21:08 EDT 2001 | genglish
Cheers guys for your rapid response, I investigated the problem further today, eventually I cam round to curing the adhesive in a sandwich of microscope slides resting on the PCA in question (hopefully mimicking the heat transfer), the adhesive is sp
Electronics Forum | Mon Feb 13 22:19:48 EST 2006 | Baer
Hi all, I will do my best to answer questions on MS2 here. I will try to check back at least every other day. MS2 is a new process chemical. It is not an oil or powder. It does not leave a residue; it does not mix with the solder. All SIR testing is
