antinn

Responses from antinn

Ultrasonic record cleaners
@pindac, When you cleaned the camera lens did you use the tiger-cloth dry, or did you use your lens cleaning solution and try to dry with the tiger-cloth?  When you use sponge & tiger-cloth for record drying, do you wear gloves?   What spec... 
Ultrasonic record cleaners
@dogberry, The book addresses Degas as follows: XIV.2.1 Dissolved Gases & Degas: Fluids exposed to air will absorb air and the solubility of air in water is inversely proportional with temperature and can decrease by about 25% between 20°C/6... 
Ultrasonic record cleaners
@terry9, WRT to cleaning the Tiger-cloth - the only thing I do is once dry - I shake it out.  Used only during to assist with drying the record after DIW rinsing, the Tiger-Cloth only sees DIW.  So, after use, I hang to dry and then shake it out ... 
Ultrasonic record cleaners
@drbond, Good to hear of the improvements. The book is only available free by download, Precision Aqueous Cleaning of Vinyl Records-3rd Edition - The Vinyl Press. Bill Hart @whart runs a tight ship as they say, and I can only guess that the book... 
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....