Thanks for posting this information. It was extremely enlightening! On May 4, 12:52 pm, Doug McNutt <[email protected]> wrote: > Dishwasher cleaning is common during the production process. Older through > -hole boards, Mac Plus, are soldered with lead-based solder which is pretty > much an acid-free process. Newer surface-mount boards, Classic II, use > lead-free solders that use acid flux. Water washing is required for those. > > Soldering temperature for the boards needs to be about 200 Celcius for a few > seconds and electronic parts are made to take it. Hot water, always below 100 > Celcius, won't harm anything on the board. > > Electronic parts have long been made using plastics that are safe in alcohol, > either isopropyl or ethyl. Those solvents are really good for removal of the > rosin fluxes used for repair or for the older thru-hole parts. > > Both alcohols in fairly pure form are good at drying out water quickly. The > water dissolves in the alcohol and the mix can be shaken or air-blown off the > board. Alcohol mixtures with water, rubbing grade or 100 proof vodka, can be > 50% water and won't work so well. Your local supplier of cleaning supplies > for professionals will likely have 98% or better isopropyl alcohol for a few > bucks per gallon. I always keep it around. > > Soap is unpredictable. You'll never get a reasonable account of what is in > it. Ditto for denatured ethyl alcohol. > > Solvents like methyl-ethyl keytone, acetone, paint thinner, or gasoline must > be avoided because of danger to plastics. > > Sometimes the pros use de-ionized water. It's hard to store and use and is > extremely corrosive. Don't even think about it. > -- > > --> Life begins at ovulation. Ladies should endeavor to get every young life > fertilized. <-- > > -- > ----- > You received this message because you are a member of the Vintage Macs group. > The list FAQ is athttp://lowendmac.com/lists/vintagemacs.shtmland our > netiquette guide is athttp://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to [email protected] > To leave this group, send email to [email protected] > For more options, visit this group > athttp://groups.google.com/group/vintage-macs > > Support for older Macs:http://lowendmac.com/services/
-- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/
