copying LP with plastic casting on it

umutmt · 18th November 2007, 04:50 AM

Is it possible to copy and produce long play copies with casting plastic on to the long play grooves and than remake a female mold again ?
Anyone tried it ?
At 70s , there was plastics for to cast on long play and than remove it for to clean the grooves .

Best ,

Mustafa Umut Sarac

Istanbul

oshifis · 20th November 2007, 11:47 AM

I tried it when I was young (around 15). There was a dry hand cleaning stuff that worked without water, used by car mechanics. It dried in a few minutes, you could rub it off, and it took all dirt. Later there was a similar material commercially available for cleaning LPs. You had to use an applicator, that made a thin layer of the liquid. It dried within a few hours and you could peel it off. It removed the dirt from the depth of the grooves.

My idea was to smear the stuff on the LP, put a layer of thin paper on it, and let it dry. After peeling off you got the negative. I played it on the crystal pickup turntable of my parents, and ... it gave some funny sound! Then my interest turned towards some more useful things, and I abandoned the project...
As I said I was fifteen :-)

mpm32 · 20th November 2007, 04:00 PM

I think this may be what you want to do.

http://gadgets.qj.net/How-to-Pirate-...g/49/aid/39381

18th November 2007, 04:50 AM	#1
umutmt diyAudio Member Join Date: Jul 2005 Location: istanbul	copying LP with plastic casting on it Is it possible to copy and produce long play copies with casting plastic on to the long play grooves and than remake a female mold again ? Anyone tried it ? At 70s , there was plastics for to cast on long play and than remove it for to clean the grooves . Best , Mustafa Umut Sarac Istanbul

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20th November 2007, 11:47 AM	#2
oshifis diyAudio Member Join Date: Mar 2004 Location: Budapest, Hungary	I tried it when I was young (around 15). There was a dry hand cleaning stuff that worked without water, used by car mechanics. It dried in a few minutes, you could rub it off, and it took all dirt. Later there was a similar material commercially available for cleaning LPs. You had to use an applicator, that made a thin layer of the liquid. It dried within a few hours and you could peel it off. It removed the dirt from the depth of the grooves. My idea was to smear the stuff on the LP, put a layer of thin paper on it, and let it dry. After peeling off you got the negative. I played it on the crystal pickup turntable of my parents, and ... it gave some funny sound! Then my interest turned towards some more useful things, and I abandoned the project... As I said I was fifteen :-)

20th November 2007, 04:00 PM	#3
mpm32 diyAudio Member Join Date: Dec 2003 Location: New England	I think this may be what you want to do. http://gadgets.qj.net/How-to-Pirate-...g/49/aid/39381

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