19 May
2021
19 May
'21
5:50 p.m.
Is there any recommended method for cleaning up melted ?rubber? feet on a plastic case?
I?m trying to determine if I can revive the VAXstation 4000/90 I received from a list
member, back around 1998 (it?s never worked). When I pulled it out, I discovered that its
feet have melted, and I?m assuming probably made a mess on the disk enclosure for my
VAXstation 3100 that it was on top of.
Zane
19 May
19 May
5:52 p.m.
Goo Gone is one option but may harm the plastic case.
Orange based cleaners are also good - the ones that remove stickers etc
Sent from my iPad
On 20 May 2021, at 10:50 am, Zane Healy via cctalk
<cctalk at classiccmp.org> wrote:
?Is there any recommended method for cleaning up melted ?rubber? feet on a plastic case?
I?m trying to determine if I can revive the VAXstation 4000/90 I received from a list
member, back around 1998 (it?s never worked). When I pulled it out, I discovered that its
feet have melted, and I?m assuming probably made a mess on the disk enclosure for my
VAXstation 3100 that it was on top of.
Zane
6:32 p.m.
I use any of the 'Orange' based goo gone type cleaners for labels.
Be careful to have an absorbent tissue. Once the black goo has been
dissolved, mop it up quickly - otherwise in the next few weeks you will
find black smears everywhere wnd wonder where they came from.
Kindest regards,
Doug Jackson
em: doug at doughq.com
ph: 0414 986878
Check out my awesome clocks at www.dougswordclocks.com
Follow my amateur radio adventures at vk1zdj.net
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On Thu, 20 May 2021 at 10:52, David Collins via cctalk <
cctalk at classiccmp.org> wrote:
Goo Gone is one option but may harm the plastic case.
Orange based cleaners are also good - the ones that remove stickers etc
Sent from my iPad
On 20 May 2021, at 10:50 am, Zane Healy via
cctalk <
cctalk at classiccmp.org> wrote:
?Is there any recommended method for cleaning up melted ?rubber? feet on
a plastic
case?
I?m trying to determine if I can revive the VAXstation 4000/90 I
received from a
list member, back around 1998 (it?s never worked). When I
pulled it out, I discovered that its feet have melted, and I?m assuming
probably made a mess on the disk enclosure for my VAXstation 3100 that it
was on top of.
Zane
8:11 p.m.
Good advice, though oddly enough, this is grey, rather than the normal black.
Zane
On May 19, 2021, at 6:32 PM, Doug Jackson via cctalk
<cctalk at classiccmp.org> wrote:
I use any of the 'Orange' based goo gone type cleaners for labels.
Be careful to have an absorbent tissue. Once the black goo has been
dissolved, mop it up quickly - otherwise in the next few weeks you will
find black smears everywhere wnd wonder where they came from.
Kindest regards,
Doug Jackson
em: doug at doughq.com
ph: 0414 986878
Check out my awesome clocks at www.dougswordclocks.com
Follow my amateur radio adventures at vk1zdj.net
-----------------------------------------------------------
Just like an old fashioned letter, this email and any files transmitted
with it should probably be treated as confidential and intended solely for
your own use.
Please note that any interesting spelling is usually my own and may have
been caused by fat thumbs on a tiny tiny keyboard.
Should any part of this message prove to be useful in the event of the
imminent Zombie Apocalypse then the sender bears no personal, legal, or
moral responsibility for any outcome resulting from its usage unless the
result of said usage is the unlikely defeat of the Zombie Hordes in which
case the sender takes full credit without any theoretical or actual legal
liability. :-)
Be nice to your parents.
Go outside and do something awesome - Draw, paint, walk, setup a
radio station, go fishing or sailing - just do something that makes you
happy.
^G ^G ^G ^G ^G ^G ^G ^G- In more laid back days this line would literally
sing ^G ^G ^G ^G ^G ^G ^G ^G
On Thu, 20 May 2021 at 10:52, David Collins via cctalk <
cctalk at classiccmp.org> wrote:
> Goo Gone is one option but may harm the plastic case.
>
> Orange based cleaners are also good - the ones that remove stickers etc
>
> Sent from my iPad
>
>> On 20 May 2021, at 10:50 am, Zane Healy via cctalk <
> cctalk at classiccmp.org> wrote:
>>
>> ?Is there any recommended method for cleaning up melted ?rubber? feet on
> a plastic case?
>>
>> I?m trying to determine if I can revive the VAXstation 4000/90 I
> received from a list member, back around 1998 (it?s never worked). When I
> pulled it out, I discovered that its feet have melted, and I?m assuming
> probably made a mess on the disk enclosure for my VAXstation 3100 that it
> was on top of.
>>
>> Zane
>>
>>
>>
>
8:10 p.m.
On May 19, 2021, at 5:52 PM, David Collins <davidkcollins2 at gmail.com> wrote:
Goo Gone is one option but may harm the plastic case.
That was my suspicion, of course that?s also what I know we have.
Orange based cleaners are also good - the ones that
remove stickers etc
Hopefully my wife has some of this.
Thanks,
Zane
20 May
20 May
12:13 a.m.
On Thu, 20 May 2021, David Collins wrote:
Orange based cleaners are also good - the ones that
remove stickers etc
That will dissolve plastics! Don't use orange based cleaners. I just use
normal 97% ethanol (called Spiritus here). That will work just fine.
Christian
12:23 a.m.
I?ve used Orange based cleaners a lot in restoring old HP equipment. It does affect some
plastics -polystyrene in particular- but it?s not as harsh as Goo Gone and should be wiped
off quickly anyway.
It does not affect most other plastics in my experience.
David
Sent from my iPad
On 20 May 2021, at 5:13 pm, Christian Corti via cctalk
<cctalk at classiccmp.org> wrote:
?On Thu, 20 May 2021, David Collins wrote:
Orange based cleaners are also good - the ones
that remove stickers etc
That will dissolve plastics! Don't use orange based cleaners. I just use normal 97%
ethanol (called Spiritus here). That will work just fine.
Christian 
19 May
19 May
7:33 p.m.
Zane said
Is there any recommended method for cleaning up melted
?rubber? feet on a plastic case?
I?m trying to determine if I can revive the VAXstation 4000/90 I received from a list
member, back around 1998 (it?s never worked). When I pulled it out, I discovered that its
feet have melted, and I?m assuming probably made a mess on the disk enclosure for my
VAXstation 3100 that it was on
top of.
Owing to it's common availability where I am, I use Double-D Eucalyptus Oil for that
sort of cleaning task.
It can be diluted with water as it's fairly strong. Once I used it full-strength on a
tissue to clean the
price label goo off CD jewel cases and it fogged the clear plastic a tiny bit, but after
dilution it was fine.
Steve
8:12 p.m.
On May 19, 2021, at 7:33 PM, Steve Malikoff via cctalk
<cctalk at classiccmp.org> wrote:
Zane said
I?ve never seen anything like this, I?ll try the orange cleaner route first.
Thanks,
Zane
Is there any recommended method for cleaning up
melted ?rubber? feet on a plastic case?
I?m trying to determine if I can revive the VAXstation 4000/90 I received from a list
member, back around 1998 (it?s never worked). When I pulled it out, I discovered that its
feet have melted, and I?m assuming probably made a mess on the disk enclosure for my
VAXstation 3100 that it was on
top of.
Owing to it's common availability where I am, I use Double-D Eucalyptus Oil for that
sort of cleaning task.
It can be diluted with water as it's fairly strong. Once I used it full-strength on a
tissue to clean the
price label goo off CD jewel cases and it fogged the clear plastic a tiny bit, but after
dilution it was fine.
Steve 
9:42 p.m.
I usually try the following commonly available chemicals listed in
increasing strength:
1) warm water with detergent on a microfibre cloth and some elbow grease
2) alcohol
3) lighter fluid or white spirit
4) acetone (apply carefully and quickly)
Acetone is really the last resort because it will readily dissolve many
plastics. The key here is to put a small amount on lint-free cloth and
quickly wipe over the affected area and immediately discard the cloth as it
will otherwise stick to the partially dissolved plastic.
Cheers
Tom
On Thu, May 20, 2021 at 8:50 AM Zane Healy via cctalk <cctalk at classiccmp.org>
wrote:
Is there any recommended method for cleaning up melted
?rubber? feet on a
plastic case?
I?m trying to determine if I can revive the VAXstation 4000/90 I received
from a list member, back around 1998 (it?s never worked). When I pulled it
out, I discovered that its feet have melted, and I?m assuming probably made
a mess on the disk enclosure for my VAXstation 3100 that it was on top of.
Zane
20 May
20 May
6:10 a.m.
On May 20, 2021, at 12:42 AM, Tom Hunter via cctalk
<cctalk at classiccmp.org> wrote:
I usually try the following commonly available chemicals listed in
increasing strength:
1) warm water with detergent on a microfibre cloth and some elbow grease
2) alcohol
3) lighter fluid or white spirit
4) acetone (apply carefully and quickly)
Acetone is really the last resort because it will readily dissolve many
plastics.
True, but strong solvents are a fine answer if you're dealing with metal cases. My
default solvent for that case is lacquer thinner, which is a blend of ketones and (I
think) toluene; it is far more effective than acetone for taking off rubbery crud. It is
also even more likely than acetone to attack plastic.
A chemical engineer friend who worked for an adhesives company told me that a gentle
solvent (good for adhesives stuck to plastic) is WD-40.
Alcohol is generally safe with plastics, but there are exceptions. Plexiglas
("lucite") will turn cloudy when exposed to alcohol, as I found out when
cleaning the case of a transmitter that had a plexiglas cover over the display.
For any solvent, it's always a good idea to test it first on an inconspicuous part of
the case you're dealing with.
paul
19 May
19 May
10:14 p.m.
On Wed, 19 May 2021, Zane Healy via cctalk wrote:
I?m trying to determine if I can revive the VAXstation
4000/90 I
received from a list member, back around 1998 (it?s never worked).
When I pulled it out, I discovered that its feet have melted, and I?m
assuming probably made a mess on the disk enclosure for my VAXstation
3100 that it was on top of.
I always use IPA with this stuff, as I did with my VAXstation 4000/90
which suffered from this very problem many years ago. I tend to use 3M
replacement feet then, some of which I've had for 20+ years now with no
sign of deterioration so far, longer than the original DEC feet survived.
I'd have to look up the P/N though as I don't have it handy.
HTH,
Maciej
1089
days inactive
1089
days old
11 comments
8 participants
participants (8)
-
cc＠informatik.uni-stuttgart.de -
ccth6600＠gmail.com -
davidkcollins2＠gmail.com -
doug＠doughq.com -
healyzh＠avanthar.com -
macro＠orcam.me.uk -
paulkoning＠comcast.net -
steven＠malikoff.com