Electronics Forum | Thu Mar 29 13:06:07 EST 2001 | billschreiber
Hello again Mike, First, I apologize to the people that have been put through this exercise. However, I cannot let you continue to misrepresent my company. Your continued attempt to cloud this issue by referring solely to the U.S. EPA�s Verificati
Electronics Forum | Fri May 07 18:01:11 EDT 1999 | Bill Schreiber
Just a note about cleaning SMD adhesives. Cleaning does not need to be hazardous. Smart Sonic has a non hazardous process that has been used for over 9 years using a non hazardous detergent that has been certified by the AQMD as a clean air chemist
Electronics Forum | Fri May 07 18:02:37 EDT 1999 | Bill Schreiber
Just a note about cleaning SMD adhesives. Cleaning does not need to be hazardous. Smart Sonic has a non hazardous process that has been used for over 9 years using a non hazardous detergent that has been certified by the AQMD as a clean air chemist
Electronics Forum | Mon Sep 14 14:02:45 EDT 1998 | Bill Schreiber
Dear Larry, I developed the ultrasonic cleaning process for Smart Sonic. It has developed into the most widely used stencil and misprinted PCB cleaning process worldwide. With that in mind, I offer some words of caution. "IT'S NOT THE ULTRASONICS!
Electronics Forum | Thu Mar 28 16:00:31 EST 2002 | bschreiber
Hello Dave, Water Washable (Organic Acid, OA) post solder flux residue is designed for cleaning in plain water without cleaning chemical additives. The real advantage of water washable flux was that it cleaned in plain water without additives � no
Electronics Forum | Tue Jun 24 13:46:21 EDT 2008 | bschreiber
I know it is not what you want to hear, but first and foremost, you must consult your local regulating agencies and here is why: Solder paste contains heavy metals. We are all familiar with the problems associated with lead, but lead free solder pas
Electronics Forum | Wed Sep 25 15:58:36 EDT 2002 | bschreiber
Hello Dave, I hope that electronic slap didn�t hurt too much. Robf, I am sorry that you did not agree with my initial response, but the answer is very detailed and most of the support material I have is only in paper format so I need to either snai
Electronics Forum | Wed Mar 28 17:22:18 EST 2001 | billschreiber
Hello Mike, Let me try to explain the Certification vs. Verification for you. There are two EPA programs. The California Environmental Protection Agency's Certification Program where Cal/EPA Certifies the entire cleaning process for environmental sa
Electronics Forum | Tue Feb 01 14:03:16 EST 2000 | Bill Schreiber
When cleaning water washable flux from PCBs using U/S, the final rinse can be with spray DI water for aesthetic purposes because the wash cycle is really just a long U/S rinse (no added chemistry). Fresh DI water should be continuously added to fresh
Electronics Forum | Fri Mar 12 13:30:06 EST 1999 | Bill Schreiber
Dear Scott, You are correct in questioning the chemistry portion of the process. However, I am couriuous as to why you selected DEK as a stencil cleaner. The most important part of any cleaning process is always the chemistry. How you deliver the c
