if you only are flattening a couple of records; it is easy to do this yourself. all you need is a couple of clean plates of glass, an oven, and a way to clean the record. you can purchase the glass easily lots of places.
you clean the record first. then pre-heat the oven to about 180-190 degrees. place the record carefully between the clean sheets of glass. turn off the oven. then place the record 'sandwitch' carefully into the oven and allow it cool slowly.......be patient....wait until it is ambient temperature.
you might need some weight on top of the glass if it is a big warp but not much. this won't hurt an Lp.
i would recommend doing a test with a 'throw-away' Lp first to make sure that you don't make a mistake...the biggest caution is too much heat.
you clean the record first. then pre-heat the oven to about 180-190 degrees. place the record carefully between the clean sheets of glass. turn off the oven. then place the record 'sandwitch' carefully into the oven and allow it cool slowly.......be patient....wait until it is ambient temperature.
you might need some weight on top of the glass if it is a big warp but not much. this won't hurt an Lp.
i would recommend doing a test with a 'throw-away' Lp first to make sure that you don't make a mistake...the biggest caution is too much heat.