Perished vinyl turntable mat
 

On a Technics SL QL1 otherwise failure of traverse.
The mat had turned rigid and fragile leaving light oil on the underlying
platter. What has caused this (unknown history) ? is the oily stuff
dangerous to human or materials?

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/

Perished vinyl turntable mat
 

On Jan 24, 9:07*am, "N Cook" wrote:
On a Technics SL QL1 otherwise failure of traverse.
The mat had turned rigid and fragile leaving light oil on the
underlying
platter. What has caused this (unknown history) ? is the oily stuff
dangerous to human or materials?

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list
onhttp://home.graffiti.net/diverse:graffiti.net/

Well I wouldn't eat it but I'd clean it off with alcohols or my
favorite, Xylene. Xylene DESTROYS styrenes but I assume the platter is
cast aluminium (UK spelling?) which would not be bothered at all. If
you're skittish about xylene wear gloves but in small amounts it
doesn;t seem to bother my skin.

GG

Perished vinyl turntable mat
 

wrote in message
...
On Jan 24, 9:07 am, "N Cook" wrote:
On a Technics SL QL1 otherwise failure of traverse.
The mat had turned rigid and fragile leaving light oil on the
underlying
platter. What has caused this (unknown history) ? is the oily stuff
dangerous to human or materials?

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list
onhttp://home.graffiti.net/diverse:graffiti.net/

Well I wouldn't eat it but I'd clean it off with alcohols or my
favorite, Xylene. Xylene DESTROYS styrenes but I assume the platter is
cast aluminium (UK spelling?) which would not be bothered at all. If
you're skittish about xylene wear gloves but in small amounts it
doesn;t seem to bother my skin.

GG

I know a chemist who is always banging on about phthalates, the dangerous to
himans softener in soft plastic, in the environment. I am aware of
powercords stored around perspex deck covers or "rubber" grommets stored in
perspex drawers exuding something that "melts" the hard plastic. But then a
bottle of culinary/dental clove oil , tipped over, and leaking will weld
ball-point pens together.
Anyone know chemically what this oil is that is presumably the softener in
such "rubber" mats and grommets etc?

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/

Perished vinyl turntable mat
 

That oil (of cloves) is Eugenol. there is a good entry on Wikipedia about
it.

"N Cook" wrote in message
...
Anyone know chemically what this oil is that is presumably the softener in
such "rubber" mats and grommets etc?

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/

Perished vinyl turntable mat
 

"N Cook" wrote in :

Anyone know chemically what this oil is that is presumably the softener
in such "rubber" mats and grommets etc?



http://en.wikipedia.org/wiki/Phthalates









--
bz 73 de N5BZ k

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.

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