|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
203.173.137.79
In Reply to: RE: I usually leave the LP in the pouch for 12 hours. posted by ghost of olddude55 on July 15, 2020 at 12:57:06
Are you using the original pouch with the 12V plug pack? Those had quite a wide range for the controlled temperature (PTC element), so what works for you may be dangerous to the vinyl for someone else. It sounds like your pouch could be on the cooler side.
I used to do similar to you with heavyweight vinyl (mainly because I forgot to turn it off!). Then I found some formulations were badly damaged - I lost about 3 records around Xmas time which was annoying because I hadn't even played them!
Unless you have measured a representative temperature between the rings for what temperature the vinyl would be exposed to and know that it is no higher than around 54°C or so, then the overnight duration should be safe. Otherwise, I would recommend that the temperature be measured between the rings after at least 2 hours (because that's how long it takes for the plattens to heat up to steady state), then make the decision as to the maximum time. I suggest even then leaving it for no longer than a further 2 to 2.5 hours after steady state (for a temperature around 54°C). If the temperature is nearer to 60°C, I would keep the time shorter to no longer than around 2 to 2.5 hours in total, before cooling down.
In practice you only need to take the record near to the heat deflection temperature to reset the shape so leaving it for long periods is actually unnecessary unless the pouch temperature is cooler than 54°C.
Regards Anthony
"Beauty is Truth, Truth Beauty.." Keats
Follow Ups:
another Inmate mentored me, recommended 12 hours in the pouch followed by a 12 hour cool down. I sent him a badly warped LP that he flattened for me and I bought the Vinyl Flat/Groovy Pouch at his recommendation.
The problem is not that there is evil in the world, the problem is that there is good. Because otherwise, who would care?
As I pointed out, the time required depends on the vinyl weight, the formulation and specifically where your pouch temperature sits in the range for temperature and what the ambient temperature is.
Whether, like John Elison, you assume I am providing (mis)information is entirely up to you and doesn't bother me in the slightest! However, I wouldn't advise anyone to blindly follow a recommendation without further study and consideration of the risks.
Regards Anthony
"Beauty is Truth, Truth Beauty.." Keats
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: