I know that in the spacecraft business, we are concerned about moisture absorption in plastic parts. In fact, plastic ICs are now "graded" by a system that rates the moisture resistance of the plastic encapsulating material. I'd be willing to bet that early ICs and other plastic parts are not very impervious to moisture absorption, and without a vacuum bake after you wash this older equipment, you are setting yourself up for long-term internal degradation of the die (or whatever is inside the plastic encapsulant). A home-oven bake would be insufficient to get rid of moisture that now is starting to begin a corrosive process that will accelerate part failure. --Ed Goss--
-----Original Message----- From: john [mailto:[EMAIL PROTECTED] Sent: Tuesday, April 27, 2004 8:14 PM To: Jim Shorney; [EMAIL PROTECTED]; VE3AX Subject: Re: [drakelist] Bathing Drakes? At 06:46 PM 4/27/04 -0500, Jim Shorney wrote: >In the modern manufacturing world, PC boards are often washed with >"de-ionized" water in what amounts to a huge dishwasher/dryer. I think modern boards are largely all FR4 material, rather than the pressed paper/phenolic that was used in Drake stuff. Might be fine, might not... I'd rather play it safe, take my time and enjoy the process.... YMMV! John ---------------------------------------------------------------------- Submissions: [EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] - subscribe drakelist in body Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Brought to you courtesy of TLCHost.net http://www.tlchost.net/ ----------------------------------------------------------------------
