The thought of spraying WD-40 on vinyl discs is sheer lunacy.
Years ago, I used a physically scratched and scuffed CD - for checking out a computer program that showed, both visually via a graph / and also percentage - wise (read -out) the amounts of CD fault/ misinformation on the disc
Then or a silly test, I sprayed it with WD-40 ,waited till it dried then inserted the same CD disc in the computer for a new read-out.
Talk about a great increase in " blocked out information"!
Since WD -40 is recommended for aiding 'freeing up rusting bolts & mechanisms etc.........perhaps now, 'someone might just suggest WD -40 to 'get rid of that rust - on CD - oxidized bronzing' on some now ancient rare Cd releases from the past
P.S I like the wise words of one Hi Fi retailer once. He stated that top record companies had gone to great lengths - down the years -to engineer and produce vinyl with as perfect of grooves as possible.
He then asked" Then why in the hell is so many people trying to fill the grooves with gunk additives and cleaners?
AMEN!