2. analog
  3. 161946-976

Is this the solution to LP static issues?? Seems to be!

Last night i was listening to a superb original RCA white dog pressing of Lena Horne and Harry Belafonte ( if you can source this, i highly recommend it!) 
I noticed that all of my prior LP's were exhibiting considerable static attraction to my felt mat on my LP12. Not this one!!! How come, since the LP was played at the same time as the others, in the same system, the same room temperature etc.?? I noticed on the cover of the album the following large sticker: Miracle Surface, This record contains the revolutionary new antistatic ingredient, 317X, which helps keep the record dust free, helps prevent surface noise, helps insure faithful sound reproduction on Living Stereo.  

Whatever this additive is that was put on this album back in 1959 sure works well!! Anyone know what 317X is?? Why are we NOT using this stuff today??
128x128daveyf
daveyf's avatar
daveyf OP
2,842 posts
 
@antinn Thanks for the research, that is very helpful. It seems that the coating is a Catanac Sn product that was mixed with the vinyl. Very interesting that there was some concern given to the fact that consumers should NOT have to deal with static build up in the LP that would be an ongoing concern for all from the start of manufacturing on. Impressive that RCA and perhaps others in 1959 were attempting to address the issue. Odd that no one today seems to concern themselves about it...in the record manufacturing industry that is. Perhaps RCA’s patent is still applicable, although I would have thought it would be in the public realm by now...but maybe not??
noromance's avatar
noromance
9,605 posts
 
I found this on AA.
"...patent #3,960,790 issued to RCA...could this be the mysterious 317X additive? methylammonium methosulphate."
noromance's avatar
noromance
9,605 posts
 
And further:
https://www.freepatentsonline.com/3960790.html


millercarbon's avatar
millercarbon
12,531 posts
 
So I was right, its mixed in the vinyl. Next thing, why assume no one does this any more? Some may well be doing it (or something like it) and just not advertising it. This would certainly explain my experience of some records being incredibly charged while others are completely free of static even without me doing anything. I never paid attention to which are which because this never occurred to me before. Now that I think about it though some records a speck of dust blows right off- no charge. Some a shot of Zerostat will liberate, while others are so highly charged almost nothing will get them off. Now I will have to start paying attention and see which particular records are which.

One more thing to do. As if I needed that. Thanks. Thanks a lot. ;)
hshifi
572 posts
 
Hello,
propylene glycol is the product that Kirmus uses. I have been cleaning my collection using this machine and method. At the very end you spray the brush with a few light sprays, spin the record on your platter, and then lightly drag the brush with the solution. I am sure we can do this every once in a while ourselves. 
More to discover