Depending on your oven preheating should take between 10 15 minutes.
Temperature vinyl records warp.
This will make it easier to retrieve later.
From good old wikipedia store in use lps at a temperature of 65 to 70 f 18 to 21 c.
Let the record cool down to room temperature.
Turn the heat off.
Pressure against the record and at room temperature below 75 degrees f.
Improper storage exposure to heat and cats can lead to warped vinyl.
Determine whether or not that fixed the warping.
Fortunately warped records can often be fixed so you can be back to rockin and rollin in no time.
Though relative humidity rh is considered less an issue for vinyl than other recorded media 13 it is recommended that lps be stored at 45 to 50 rh.
Direct sunlight increases in temperature and or uneven storage pressure are the principal components that can lead to warping vinyl records.
Don t push the glass too far into the oven.
A typical vinyl record can start warping due to heat at a temperature of 140 f 60 c and can melt at temperatures exceeding 212 f 100 c.
If a record is improperly stored and or kept in a high temperature environment the vinyl may warp and the record may become unplayable.
Those in long term storage should be kept at 45 to 50 f 7 to 10 c.
Preheat the oven to its lowest temperature setting.
Place the record between the two panes of glass making sure the record is clean first.
Other factors such as humidity sunlight exposure and improper storage can drastically impact the resilience of a record.
Once the oven has reached the right temperature carefully slide the record and glass combination onto the oven rack.
Put your vinyl glass sandwich in the oven for 30 minutes.
Pvc starts to decompose when the temperature reaches 140 c with melting temperature starting around 160 c.
Preheat the oven to about 175 f 79 c and place the record inside.