Damping fluid?

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southofmotown
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Damping fluid?

Post by southofmotown » 22 Dec 2017 19:54

My tonearm descends too quickly on records, leading me to believe that I need to redamp it. I know a guy sells some fluid online, but do I really need that or can I just use something more common? Compared to other turntable issues, information on redamping seems to be lacking.

Budddhacide
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Re: Damping fluid?

Post by Budddhacide » 22 Dec 2017 21:15

Curious what your damper looks like. If it's trough and screw type I doubt it would help.

And I've asked similar questions. I imagine the viscosity of the silicon must be in some way related to the design of the tonearm, but i wouldn't mind trying different fluids wouldn't hurt. I have to buy mine from Oracle, which I imagine isnt cheap. Kab USA sells some for the technics, which I'm told isn't expensive.

themisto462
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Re: Damping fluid?

Post by themisto462 » 22 Dec 2017 21:22

southofmotown wrote:My tonearm descends too quickly on records, leading me to believe that I need to redamp it. I know a guy sells some fluid online, but do I really need that or can I just use something more common? Compared to other turntable issues, information on redamping seems to be lacking.
I think there is no alternative to this special silicone oil.
Because of its viscosity (like liquid glass) it does the opposite of every other oil or fat, that reduces friction.
For a sufficient damping you should take silicone oil with a viscosity of 300.000 cst or 500.000 cst.

Regards.

LD100
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Re: Damping fluid?

Post by LD100 » 22 Dec 2017 21:53

Permatex makes a silicone "Bulb Grease" for use on the contacts of car lamps to protect them from moisture and corrosion. A 4g packet was around a dollar at my local auto parts store.
It worked for another poster with the same problem. =D>

themisto462
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Re: Damping fluid?

Post by themisto462 » 23 Dec 2017 08:35

themisto462 wrote: ...it does the opposite of every other oil or fat, that reduces friction.
Edited:

Because of its viscosity (like liquid glass) it does the opposite of every other oil or grease, that reduces friction.

... ](*,)

Dimal
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Re: Damping fluid?

Post by Dimal » 23 Dec 2017 12:23

You can normally find suitable silicone oil from hobby supply stores, such as this... :-)
https://www.smallparts.com.au/store/par ... aroil/a/1/

Mal.

tckmet
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Re: Damping fluid?

Post by tckmet » 23 Dec 2017 13:09

KABUSA sells a syringe of it for less than $ 10.00.

Alec124c41
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Re: Damping fluid?

Post by Alec124c41 » 23 Dec 2017 14:09

Do you know anybody that is into R/C model cars? They use thick silicon oil for differentials and shocks.

Cheers,
Alec

Uskoke
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Re: Damping fluid?

Post by Uskoke » 23 Dec 2017 16:16

themisto462 wrote:
themisto462 wrote: ...it does the opposite of every other oil or fat, that reduces friction.
Edited:

Because of its viscosity (like liquid glass) it does the opposite of every other oil or grease, that reduces friction.

... ](*,)
that's understood, as grease in german is Fett, isn't it? (Schmierfett). I make also many mistakes, thinking in greek and then writing in German or English or even French. But not as many as our infamous Prime Minister.(and to stay on topic).I'm now digitizing some excellent Deutsche Grammofon records for my (german) godmother, she doesn't have the mood to spin them, she doesn't even have a proper turntable setup anymore, now mozart!
Last edited by Uskoke on 23 Dec 2017 17:01, edited 1 time in total.

themisto462
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Re: Damping fluid?

Post by themisto462 » 23 Dec 2017 16:59

Uskoke wrote: that's understood, as grease in german is Fett, isn't it? (Schmierfett).
Absolutely right.

Sunwire
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Re: Damping fluid?

Post by Sunwire » 23 Dec 2017 18:56


Japi Roelofs
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Re: Damping fluid?

Post by Japi Roelofs » 23 Dec 2017 21:39

tckmet wrote:KABUSA sells a syringe of it for less than $ 10.00.
Do you mean this one?

Extra Silicone Syringe
$7.95


Don't get that, it's for use in the fluid damper, not the arm lifter. It's 60,000 cst, you need at least 300,000 cst.

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Re: Damping fluid?

Post by Van_Isle » 24 Dec 2017 23:26

Which turntable is this for? That will give us a hint if it's 300,000 or 500,000 cSt silicone fluid you need.

This stuff, that was linked to previously: https://www.ebay.com/itm/30wt-350cst-Si ... SwbtVZVA6r is 350 cSt, not 350,000 cSt.

Turntablebasics is hit and miss in terms of shipping in any sort of reasonable timeframe.

This looks like the ticket ... both 300k and 500k: https://www.ebay.com/itm/2x-2ml-Silicon ... Swv0tU59yN Seller has it in different quantities also.

themisto462
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Re: Damping fluid?

Post by themisto462 » 25 Dec 2017 10:56

Van_Isle wrote: This looks like the ticket ... both 300k and 500k: https://www.ebay.com/itm/2x-2ml-Silicon ... Swv0tU59yN Seller has it in different quantities also.
I did purchase exactly this, a few years ago, from this seller and was very satisfied.
Made an offer, he accepted.

southofmotown
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Re: Damping fluid?

Post by southofmotown » 27 Dec 2017 16:00

Van_Isle wrote:Which turntable is this for? That will give us a hint if it's 300,000 or 500,000 cSt silicone fluid you need.

This stuff, that was linked to previously: https://www.ebay.com/itm/30wt-350cst-Si ... SwbtVZVA6r is 350 cSt, not 350,000 cSt.

Turntablebasics is hit and miss in terms of shipping in any sort of reasonable timeframe.

This looks like the ticket ... both 300k and 500k: https://www.ebay.com/itm/2x-2ml-Silicon ... Swv0tU59yN Seller has it in different quantities also.
It is a Pioneer PL-S40. Also, thanks for pointing out that that is not 350,000 cSt - I missed that.

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