Site Sponsor Robert Houllahan Posted January 14, 2022 Site Sponsor Share Posted January 14, 2022 1 hour ago, Tyler Purcell said: Ohhhh yea that's what it was, HFE. I thought they had an alternative for the toxicity of pert. HFE is a "engineered fluid" by 3M I think and it is hella spendy like $1K/Gal and is basically non toxic under the conditions it is used in. I know the Lipsner 8200 HFE machines at Co3 NY needed an environmental cert to be run as they are vented to atmosphere but nothing compared to the Perc one. That said many Dry-Clean businesses still operate with Perc. 1 hour ago, Tyler Purcell said: Cool thanks for the insight! I know nothing about cleaners. I always send it out due to how good pert is. They only charge .04 cents per foot over at Spectra, which is only a few blocks away. So I just drop older content off and get it cleaned. But we've found that even the ultrasonic pert machine can't get off the real baked in dirt. We're trying some hand cleaning with some other stuff that I'll talk about if it works! Ultrasonic is a small tank with the tank itself having ultrasonic "speakers" to do hi-freq oscillation of the tank liquid, this works but a it is too small and too short a time to really open up the emulsion and get it to release embedded dirt and dust stuff, a rewash processor does that but that is like running a 1/3 of a full film processor so not allot of places outside of labs will want to do that. I could see a possible DIY machine for immersion cleaning using a non evaporative method and some kodak kit chemistry then air knives and a drybox as a possible more modern lower enviornmetal impact way to get at stubborn dirt and also to kill mold etc. Here is the Lipsner XL1100 Quote Link to comment Share on other sites More sharing options...
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