Audiophilepure

https://www.analogplanet.com/content/our-depth-record-cleaning-primer-how-find-best-vinyl-cleaning-methods-and-machines-your

Alcohol — such as isopropyl and ethyl — can safely be used on vinyl, especially in low concentrations at room temperature, as shown in PVC Chemical Resistance Charts. (Footnote 9) The impact of ethyl alcohol on plasticized PVC has also been studied, and the conclusion is there is no risk of damage in low concentrations at room temperature. (Footnote 10)

For my own record cleaning, I use lab-grade — i.e. highly purified — isopropyl alcohol. A small 2% concentration will lower water’s surface tension by about 28% of what Tergitol can achieve, improving both washing and rinsing effectiveness. And since high purity alcohol evaporates completely it will leave no residue behind, making it safe to use in a rinse step. Additionally, alcohol has antimicrobial properties which should help remove mold and other microorganisms.

However, after all the research I have done for the purposes of this article, I decided to avoid using alcohol in all ultrasonic cleaning solutions. Why? The research indicates that temperature plays a role in the safety of alcohol on PVC — it is safe at room temperature but becomes less safe as the temperature increases. Temperature is effectively particle motion; the higher the temperature, the higher the mean velocity of particles in a liquid. The high-speed jets created during cavitation are akin to high-speed particles in a high-temperature liquid. My conclusion is to avoid alcohol in ultrasonic solutions — if anything, out of caution.