Re: Decaying foam on PCBs
I'm with Chuck on this one, I've use 91% on the foam gunk and it has worked. A similar product in the US is called GooGone. It can remove stenciled part labels and attacks some plastic. Dwight From: cctalk on behalf of Jules Richardson via cctalk Sent: Wednesday, August 28, 2019 4:44 AM To: cctalk@classiccmp.org Subject: Re: Decaying foam on PCBs On 8/27/19 10:38 PM, Chuck Guzis via cctalk wrote: > I'd probably just use 91% isopropanol. No water to speak of, doesn't > bother plastics--and cheap. I do normally use it on boards for general cleaning - I was just assuming that this nasty sticky foam would be too much for it. I'll give it a go, though... J.
Re: Decaying foam on PCBs
On 8/27/19 10:38 PM, Chuck Guzis via cctalk wrote: I'd probably just use 91% isopropanol. No water to speak of, doesn't bother plastics--and cheap. I do normally use it on boards for general cleaning - I was just assuming that this nasty sticky foam would be too much for it. I'll give it a go, though... J.
Re: Decaying foam on PCBs
On 8/27/19 8:18 PM, David Collins via cctalk wrote: > In Australia there’s this product ; > > https://awareenvironmental.com.au/product/sticky-spot-goo-dissolver/ > > It’s citrus based but I haven’t had any bad effects on PCBs. It does affect > some styrene plastics but in general it’s safe and very effective. > > If you aren’t in Aus, a similar citrus based product should work - just my > experience. > I'd probably just use 91% isopropanol. No water to speak of, doesn't bother plastics--and cheap. If this were the 1970s, I'd suggest Freon TF. --Chuck
Re: Decaying foam on PCBs
In Australia there’s this product ; https://awareenvironmental.com.au/product/sticky-spot-goo-dissolver/ It’s citrus based but I haven’t had any bad effects on PCBs. It does affect some styrene plastics but in general it’s safe and very effective. If you aren’t in Aus, a similar citrus based product should work - just my experience. David Collins HP Computer Museum > On 28 Aug 2019, at 10:39 am, Jules Richardson via cctalk > wrote: > > > I picked up a couple of HP 5036A logic trainers today, both of which have had > goopy decaying foam come into contact on their PCBs. What's effective at > removing it? I've only ever had problems with it in locations where I can use > things such as citrus-based cleaners, but I'm a bit wary of using those > around a PCB. Is regular Dawn/water likely to work? > > thanks! > > Jules > >
Decaying foam on PCBs
I picked up a couple of HP 5036A logic trainers today, both of which have had goopy decaying foam come into contact on their PCBs. What's effective at removing it? I've only ever had problems with it in locations where I can use things such as citrus-based cleaners, but I'm a bit wary of using those around a PCB. Is regular Dawn/water likely to work? thanks! Jules
