I cleaned some vinyl records with a solution of isopropyl alcohol and distilled water, mixed in a glass container. The records weren't particurlarly grimy so instead of using the recommended ratio of one third isopropyl, two thirds water I just used a lot less isopropyl.
I then proceeded to spread it on the records with a microfibre cloth, in circular motion, not applying pressure. After that, I left them to dry on a towel, laying flat (didn't dry them

) Now they have light crackle, evenly audible all along the record on both sides. I washed them again with a solution of recommended strenght and tried showering them with lots of tap water. Neither had any effect on the state of the record.
So what's there to attempt? Could some chemical counteract this or is hot water an option?