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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Removal of heatsink compound stain - HELP!
Guess who put a heatsink down on a fabric-covered chair, forgetting that
the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Please help before she moves the cushion.... or I'm dead meat! David |
#2
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Lobster wiibbled of :
Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Please help before she moves the cushion.... or I'm dead meat! David White vinegar or meths springs to mind, though do try it on the underside of the chair first to make sure it doesn't make the dye run. Maybe a paste of talc and white vinegar to remove any stain. Or failing that quickly head out and buy a nice loose cover for the chair |
#3
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In uk.d-i-y Lobster wrote:
Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? White spirit will act as a solvent for silicone sealant (before it sets). I don't know how it will act with silicone grease. I'd take it outside, then gently rub in some white spirit to the stain, then suck it off with a wet+dry vacuum cleaner (set to dry). (outside, to cover the very small possibility tha the vac goes on fire.) Repeat several times. |
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On 25 Feb 2005 13:25:28 GMT, Ian Stirling wrote:
In uk.d-i-y Lobster wrote: Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? White spirit will act as a solvent for silicone sealant (before it sets). I don't know how it will act with silicone grease. Heatsink compound isn't silicone grease, it's much more sticky and evil than that! I'd take it outside, then gently rub in some white spirit to the stain, then suck it off with a wet+dry vacuum cleaner (set to dry). (outside, to cover the very small possibility tha the vac goes on fire.) Repeat several times. White spirit is a very good general-purpose solvent. If it doesn't do the trick, it's unlikely anything will. ( Jock. -- "In view of the fact that God limited the intelligence of man, it seems unfair that he did not also limit his stupidity." -- Konrad Adenauer |
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In uk.d-i-y Jock. wrote:
On 25 Feb 2005 13:25:28 GMT, Ian Stirling wrote: In uk.d-i-y Lobster wrote: Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? White spirit will act as a solvent for silicone sealant (before it sets). I don't know how it will act with silicone grease. Heatsink compound isn't silicone grease, it's much more sticky and evil than that! I think it is. It's a very stiff silicone grease, loaded with zinc-oxide (or other heat conductive shimming stuff). Or at least it was in the past, I'm sure I read it on the side of a 20ml tube that the label has now fallen off of. |
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On Fri, 25 Feb 2005 11:05:11 GMT, Lobster
wrote: Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Please help before she moves the cushion.... or I'm dead meat! Is it silicone grease or the white zinc heatsink compound? sPoNiX |
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s--p--o--n--i--x wrote:
On Fri, 25 Feb 2005 11:05:11 GMT, Lobster wrote: Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Is it silicone grease or the white zinc heatsink compound? Well, it's a white paste, and although it was me that originally applied it, a long time ago, I haven't a clue what it's made of. Does 'white' mean it must be zinc not silicone (and therefore I shouldn't try white spirit?!) Thanks David |
#8
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In uk.d-i-y Lobster wrote:
s--p--o--n--i--x wrote: On Fri, 25 Feb 2005 11:05:11 GMT, Lobster wrote: Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Is it silicone grease or the white zinc heatsink compound? Well, it's a white paste, and although it was me that originally applied it, a long time ago, I haven't a clue what it's made of. Does 'white' mean it must be zinc not silicone (and therefore I shouldn't try white spirit?!) Zinc oxide is the filler, used with a heavy silicone oil, to make the compound. (other more exotic things may be used.) However. Unless you've really tried hard, there should be some left on the heatsink. Smear this on another bit of fabric, and try various approaches. |
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Ian Stirling wrote:
In uk.d-i-y Lobster wrote: s--p--o--n--i--x wrote: On Fri, 25 Feb 2005 11:05:11 GMT, Lobster wrote: Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Is it silicone grease or the white zinc heatsink compound? Well, it's a white paste, and although it was me that originally applied it, a long time ago, I haven't a clue what it's made of. Does 'white' mean it must be zinc not silicone (and therefore I shouldn't try white spirit?!) Zinc oxide is the filler, used with a heavy silicone oil, to make the compound. (other more exotic things may be used.) However. Unless you've really tried hard, there should be some left on the heatsink. Smear this on another bit of fabric, and try various approaches. I wouldn't be surprised if white spirit / terps caused the colour to run in the fabric so defiantly try a concealed section first. There aren't many things that will dissolve silicone effectively. IIRC we used to use DCM (dichloro-methane) will but I have no idea where you can get that neat (it's in paint stripper so you might find it associated with that). You could also try acetone (nail varnish remover) but I doubt that will work - it might be better for the fabric though. Have you tried just sticking it in the washing machine? Graham |
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On Fri, 25 Feb 2005 14:33:10 GMT, Lobster wrote:
s--p--o--n--i--x wrote: On Fri, 25 Feb 2005 11:05:11 GMT, Lobster wrote: Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Is it silicone grease or the white zinc heatsink compound? Well, it's a white paste, and although it was me that originally applied it, a long time ago, I haven't a clue what it's made of. Does 'white' mean it must be zinc not silicone (and therefore I shouldn't try white spirit?!) If it's white then it's heatsink compound. Silicone grease is grey and jelly-like. You're unlikely to find silicone grease on a heatsink these days. Jock. -- "In view of the fact that God limited the intelligence of man, it seems unfair that he did not also limit his stupidity." -- Konrad Adenauer |
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Jock. wrote:
On Fri, 25 Feb 2005 14:33:10 GMT, Lobster wrote: s--p--o--n--i--x wrote: On Fri, 25 Feb 2005 11:05:11 GMT, Lobster wrote: Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Is it silicone grease or the white zinc heatsink compound? Well, it's a white paste, and although it was me that originally applied it, a long time ago, I haven't a clue what it's made of. Does 'white' mean it must be zinc not silicone (and therefore I shouldn't try white spirit?!) If it's white then it's heatsink compound. Silicone grease is grey and jelly-like. You're unlikely to find silicone grease on a heatsink these days. Jock. *"Silcoset"* ? |
#12
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The silicone grease I used to use, for high vacuum work, was completely
colourless so I presume you could add additives to make it any colour you wanted. Graham Jock. wrote: On Fri, 25 Feb 2005 14:33:10 GMT, Lobster wrote: s--p--o--n--i--x wrote: On Fri, 25 Feb 2005 11:05:11 GMT, Lobster wrote: Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Is it silicone grease or the white zinc heatsink compound? Well, it's a white paste, and although it was me that originally applied it, a long time ago, I haven't a clue what it's made of. Does 'white' mean it must be zinc not silicone (and therefore I shouldn't try white spirit?!) If it's white then it's heatsink compound. Silicone grease is grey and jelly-like. You're unlikely to find silicone grease on a heatsink these days. Jock. |
#13
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Well, it's a white paste, and although it was me that originally applied it, a long time ago, I haven't a clue what it's made of. Does 'white' mean it must be zinc not silicone (and therefore I shouldn't try white spirit?!) Thanks David Silicone heatsink compound is white because it contains metal oxides to help heat transfer. Dave -- For what we are about to balls up may common sense prevent us doing it again in the future!! |
#14
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Dave Stanton wrote:
Well, it's a white paste, and although it was me that originally applied it, a long time ago, I haven't a clue what it's made of. Does 'white' mean it must be zinc not silicone (and therefore I shouldn't try white spirit?!) Thanks David Silicone heatsink compound is white because it contains metal oxides to help heat transfer. The same oxides that used to be used on sticking plaster IIRC. Anyway a solvent to dissove teh grease and dab it all of. # Dave |
#15
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In message , The Natural
Philosopher writes Dave Stanton wrote: Well, it's a white paste, and although it was me that originally applied it, a long time ago, I haven't a clue what it's made of. Does 'white' mean it must be zinc not silicone (and therefore I shouldn't try white spirit?!) Thanks David Silicone heatsink compound is white because it contains metal oxides to help heat transfer. The same oxides that used to be used on sticking plaster IIRC. Anyway a solvent to dissove teh grease and dab it all of. Meths or isopropyl alcohol will dissolve the grease without being too hostile to other things, but you'll need to work hard to get the zinc oxide out. It wasn't used as a pigment for nothing... -- Joe |
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On Fri, 25 Feb 2005 11:05:11 GMT, Lobster
wrote the following to uk.comp.misc: Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Heatsink compound is silicone based, so you need a solvent based stain remover. Something for removing furniture polish should do. mh. -- Reply-to address *is* valid. "From" address is a blackhole. "If you don't vote, you get morons in charge." - Maurice Chavez (GTA Vice City) |
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Lobster wrote:
Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Please help before she moves the cushion.... or I'm dead meat! David Maplins, A05AQ |
#18
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In message , Lobster
writes Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Please help before she moves the cushion.... or I'm dead meat! David Ah, we have a term for this stuff at work. Armpitotropic. Basically if you use on some device, it very quickly finds its way everywhere. On your trousers, shirt, armpits. You can see why the thermal pad vendors can charge hideous money for a little square of thermal pad, just to avoid the mess of having to use these thermal greases! -- steve |
#19
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"Lobster" wrote in message ... Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Please help before she moves the cushion.... or I'm dead meat! David In the interests of science I've just experimented with a tube of PC Processor heatsink compound and my fabric covered 'office' chair. My florist wife swears by a preparation called "Mess Master", which appears to be alcohol based, and it did a pretty good job of cleaning this gunk off. Adopt a "dumb bloke" approach at the florist (especially if you buy HI flowers too!) and explain your crisis, they'll probably 'give' you a part used can. It wholesales at about £2.00 for a 400mil can. Keith |
#20
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On 28/02/2005 Keith wrote:
In the interests of science I've just experimented with a tube of PC Processor heatsink compound and my fabric covered 'office' chair. My Well that's above and beyond the call of duty, I hope you get a MBE in the next honours list :-) -- Jeff Gaines Posted with XanaNews 1.17.2.7 |
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"Jeff Gaines" wrote
| ... I've just experimented with a tube of PC Processor | heatsink compound and my fabric covered 'office' chair. | Well that's above and beyond the call of duty, I hope you | get a MBE in the next honours list :-) or a new chair in the next office furniture raffle Owain |
#22
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"Jeff Gaines" wrote in message ... On 28/02/2005 Keith wrote: In the interests of science I've just experimented with a tube of PC Processor heatsink compound and my fabric covered 'office' chair. My Well that's above and beyond the call of duty, I hope you get a MBE in the next honours list :-) Perhaps I should confess that the chair has battle scars from serving variously as a saw-horse, drill stand and paint roller-tray stand, and the experiment actually increased the intrinsic value of the chair to that of a tube of heat sink compound. Besides, when 'er indoors says "I bet Mess-Master would get that out" one is duty bound to accept the challenge :-) Keith |
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#24
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"Rob Morley" wrote in message
t... In article , "Lobster" says... Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Please help before she moves the cushion.... or I'm dead meat! Have you tried working some washing up liquid into it with a toothbrush then repeatedly rinsing with a sponge, dabbing with a dry cloth and scrubbing some more? Probably worth taking the cover off and turning it inside out so that if the bristles of the toothbrush tease out the fibres of the cloth, this happens on the "wrong" side. If all else fails, get the dog to pee on it: 1) you can blame the dog for the stain; 2) the pee might bleach out the stain! |
#25
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Martin Underwood wrote:
"Rob Morley" wrote in message t... In article , "Lobster" says... Guess who put a heatsink down on a fabric-covered chair, forgetting that the underside would be liberally buttered in this truly *evil* stuff. What on earth will dissolve it without taking the chair with it? Please help before she moves the cushion.... or I'm dead meat! Have you tried working some washing up liquid into it with a toothbrush then repeatedly rinsing with a sponge, dabbing with a dry cloth and scrubbing some more? Probably worth taking the cover off and turning it inside out so that if the bristles of the toothbrush tease out the fibres of the cloth, this happens on the "wrong" side. If all else fails, get the dog to pee on it: 1) you can blame the dog for the stain; 2) the pee might bleach out the stain! Its not a stain though. Its just white powder. I am certain it waill wash out with a mild solvent. |
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