Re: Types of corrosion on computers
I've seen this a few times. I never knew exactly what it was but it usually comes off but there is staining left over. Here are a couple of explanations from Google. *White rust* is a *white* powdery deposit formed from a natural *corrosion* process that can occur on any new zinc coated steel product. It is damaging to the appearance of the steel, not to mention to the anti-*corrosion* layer of zinc that protects the body of the steel. Galvanized *metals* also *rust*, but they do so at a slow rate unless the galvanized coating has been damaged. Brass, silver, and bronze tarnish as they interact with the atmosphere. Aluminum oxidizes into a *white powder*, although the *powder* binds chemically to the *metal* beneath, blocking further *corrosion*. On Fri, Dec 8, 2017 at 6:09 PM, Adrian Stoness via cctalk < cctalk@classiccmp.org> wrote: > water get sprayed on it? > > > On Fri, Dec 8, 2017 at 5:06 PM, dwight via cctalk <cctalk@classiccmp.org> > wrote: > > > Could be the zinc plating? > > > > Dwight > > > > > > > > From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Sam O'nella > via > > cctalk <cctalk@classiccmp.org> > > Sent: Friday, December 8, 2017 2:46:40 PM > > To: General Discussion: On-Topic and Off-Topic Posts > > Subject: Types of corrosion on computers > > > > I've seen rust and dust, but there's an old vaxstation II at Goodwill > > Computers in Austin right now (very cheap, anyone welcome to buy it and > get > > it off my mind) but as most things, I checked out the back and see some > > circles of white corrosion on the back where the cards? are contacting > the > > case. > > > > I don't really have room or time but I don't own anything that uses QBUS > or > > is almost related to some of the neat iron some of you all collect (I've > > mostly collected way too many home computer history items). > > > > Anyway, what is that type of white corrosion on metal? Would one > probably > > assume this means any bus would be corroded and this wouldn't be a > computer > > for the faint of heart hobbyist? I've only seen that maybe from batteries > > but it's in an unusual place and pattern (I think). > > >
Re: Types of corrosion on computers
water get sprayed on it? On Fri, Dec 8, 2017 at 5:06 PM, dwight via cctalk <cctalk@classiccmp.org> wrote: > Could be the zinc plating? > > Dwight > > > > From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Sam O'nella via > cctalk <cctalk@classiccmp.org> > Sent: Friday, December 8, 2017 2:46:40 PM > To: General Discussion: On-Topic and Off-Topic Posts > Subject: Types of corrosion on computers > > I've seen rust and dust, but there's an old vaxstation II at Goodwill > Computers in Austin right now (very cheap, anyone welcome to buy it and get > it off my mind) but as most things, I checked out the back and see some > circles of white corrosion on the back where the cards? are contacting the > case. > > I don't really have room or time but I don't own anything that uses QBUS or > is almost related to some of the neat iron some of you all collect (I've > mostly collected way too many home computer history items). > > Anyway, what is that type of white corrosion on metal? Would one probably > assume this means any bus would be corroded and this wouldn't be a computer > for the faint of heart hobbyist? I've only seen that maybe from batteries > but it's in an unusual place and pattern (I think). >
Re: Types of corrosion on computers
Could be the zinc plating? Dwight From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Sam O'nella via cctalk <cctalk@classiccmp.org> Sent: Friday, December 8, 2017 2:46:40 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Types of corrosion on computers I've seen rust and dust, but there's an old vaxstation II at Goodwill Computers in Austin right now (very cheap, anyone welcome to buy it and get it off my mind) but as most things, I checked out the back and see some circles of white corrosion on the back where the cards? are contacting the case. I don't really have room or time but I don't own anything that uses QBUS or is almost related to some of the neat iron some of you all collect (I've mostly collected way too many home computer history items). Anyway, what is that type of white corrosion on metal? Would one probably assume this means any bus would be corroded and this wouldn't be a computer for the faint of heart hobbyist? I've only seen that maybe from batteries but it's in an unusual place and pattern (I think).
Types of corrosion on computers
I've seen rust and dust, but there's an old vaxstation II at Goodwill Computers in Austin right now (very cheap, anyone welcome to buy it and get it off my mind) but as most things, I checked out the back and see some circles of white corrosion on the back where the cards? are contacting the case. I don't really have room or time but I don't own anything that uses QBUS or is almost related to some of the neat iron some of you all collect (I've mostly collected way too many home computer history items). Anyway, what is that type of white corrosion on metal? Would one probably assume this means any bus would be corroded and this wouldn't be a computer for the faint of heart hobbyist? I've only seen that maybe from batteries but it's in an unusual place and pattern (I think).
