How much isopropanol is effective but safe for viny?

Yeah, it’s a dealbreaker. 91% is a $1 a bottle at Walgreens. If you can’t afford that, you should be in a different hobby, like collecting cans maybe. 

@invictus005 - You have yet to answer what kind of material you’re trying to clean from the grooves? Do you actually KNOW or are you just ignoring the reality of the process? Have you reviewed the issue from a chemical perspective? What did you discover in your materials research that you can share?

Are the softeners used in the vinyl record leached out with the alcohol?  What harmful impact would that have on the life of a vinyl record?  

If you say isopropyl alcohol is 100% safe for cleaning, are you also taking 100% responsibility for our records if you are mistaken?  

My cleaning experience suggests oily residue is why dust won’t simply “blow” off a record. Imo the value of detergent and surfactants is not up for argument; as is the value of thorough rinsing. FWIW I have a significant collection accumulated over 50 years. I have found the Discwasher brush and the LAST products in particular very effective. I don’t wish to generate any comments from this,but, I feel records are somewhat like lovely feminine women with sweet personalities — they are tougher than you’d think. 

@bpoletti Me responsible for your records? Get over yourself. 

@invictus005 - And STILL you cannot provide a rational explanation for isopropyl alcohol.  In fact, you have yet to post a rational comment.