antinn
Responses from antinn
| Ultrasonic record cleaners @drbond, The 'solvent' in Kodak Photo-Flo as I addressed is propylene glycol - and it is not harmful to a record; and it is non-toxic in many cosmetic products. | |
| Ultrasonic record cleaners @drbond, As written in the book - VIII.7: KODAK™ PHOTO-FLO 200: This is a wetting agent that is water mixed with a combination of 25-30% propylene glycol (i.e., anti-freeze) that acts as a solvent and as an antibacterial and antifungal agent and... | |
| Ultrasonic record cleaners @drbond & @lewm, Please be careful with high concentrations of IPA in water and use with a heated ultrasonic tank. 25% IPA/water has a flashpoint of about 80F; and no ultrasonic tank you can afford is explosion-proof. With an ultrasonic unit... | |
| Ultrasonic record cleaners @orthomead, What you are doing by first cleaning with the VPI vacuum-RCM and then cleaning with UT is what @whart does with his Monk & KLAudio, and if you were to read the book, and step-back what it preaches is pre-clean/rinse/final-clean/ri... | |
| Ultrasonic record cleaners Bill @whart and Terry @terry9 thank you for the compliments. I would like to add a few items for those reading: 1. What @terry9 says about the equipment power rating can be very true. The German made Elmasonic UT machines are quite powerful, ... | |
| Precision Aqueous Cleaning of Vinyl Records @lewm, This is what I specifically stated in the book, and I stand corrected on 'generally some kind" VIII.9 ENZYMES. Enzymes are biological catalysts that are generally some kind of protein. There is the “lock & key” analogy associated with... | |
| Precision Aqueous Cleaning of Vinyl Records @mglik Enzymes are biological catalysts that are generally some kind of protein. There is the “lock & key” analogy associated with enzymes and cleaning. The particular enzyme must be the right key to unlock (dissolving) the particular soil. ... | |
| Precision Aqueous Cleaning of Vinyl Records The science of surfactants is pretty amazing - there is very little they do not touch. Although Triton X100 is now banded in AU/EU/UK because it's an aquatic toxin. But Polysorbate 20 (same Tween20) is still available, so the book now lists Poly... | |
| I finally got a record cleaning machine. First thoughts. The analysis of the bearing stylus load is actually quite complex, and an example of the complexity and loads is addressed in the article Dr. A. M. Max, Disc Phonograph Records, Max, RCA Engineer Magazine 1966-08-09 1966-08-09.pdf (worldradiohisto... | |
| Precision Aqueous Cleaning of Vinyl Records @lewm Your opinion wrt IPA being a superior solvent to ethanol is spot on with the science. In the book, I did a basic Hansen Solubility Parameter analysis, and of the alcohols, IPA has the lowest Hildebrand solubility parameter - the lower the... | |
| Precision Aqueous Cleaning of Vinyl Records @lewm Agreed, however, I an not sure wiki is correct - here is just one example of reagent 'denatured' alcohol contents (vwr.com) and methanol is just 5%. However, this form of denatured alcohol \\TAHOE\APPS\MIRS\REPORTS\MSWRPTM.FRX (mscdirect.... | |
| Precision Aqueous Cleaning of Vinyl Records @lewm You are preaching to the choir, this what my book PACVR 3rd Ed states: VIII.8.1.a Denatured Alcohol. Denatured alcohol that is purchased on-line or at a hardware store is generally ethanol (drinking alcohol) that has been denatured (made ... | |
| Precision Aqueous Cleaning of Vinyl Records @pryso, Open the document with Adobe PDF Reader. You should have an option to open the document (right click OPEN with) with the web browser or open with Adobe PDF Reader. There should be a free app Adobe PDF Reader for MACs. | |
| Precision Aqueous Cleaning of Vinyl Records @pryso, There is a left hand drop-down Table of Contents and clicking (touching if you have a touch screen) on any Chapter will link you to the applicable Chapter. Otherwise the document is extensively cross-linked so if you click on any refere... | |
| Precision Aqueous Cleaning of Vinyl Records @lewm The company site lists denatured alcohol Denatured alcohol - Wikipedia while the SDS just lists ethanol. Here is an example of denatured alcohol - Microsoft Word - 6210GHS (chemtel.net) and this a safe solvent, but this is also denatured ... |