Screw and vane compressors, if you use more cfm than the machine can produce it will drink its oil , this will then end up in the air being used. Make sure you have the compressor correctly specified and installed for the best results. 230v single phase compressors will only produce 14-16 cfm (displacement) 7-10 cfm (free air delivery) although tandem compressors can do 26-30cfm displacement 14-18cfm free air. Any cfm demand above this will require 415 v three phase. I am a compressed air engineer just for context. I will be happy to answer any queries.
Hi Jon, you are costing me a fortune as every time I watch one of your videos I end up buying something. I have recently bought the DA8 which was recommended by you and a 3inch purple pad but the 5 inch orange one has been out of stock for over 3 weeks. Which other pads would you recommend to use for waxing (BH finis) and buffing? Thanks
I think it's too early to say what the long-term effects of dry ice are on plastics and other surfaces. I'm not saying there is a problem, but it's too early to know if there are any downsides.
It's pretty much just a physical cleaning, so I would say if the plastic is unharmed after cleaning there is no reason it would be any different over time. I would just disagree where it's said that it's not abrasive. It's clearly an abrasive cleaning method, just fairly gentle and with a media that turns back into a gas.
We have a detail shop here in Atlanta that I knew nothing about that offers dry ice in their packages. When I went by them last year and asked about using it for leather and fabrics within the interior, they explained it nicely with visuals. THEY DON'T TOUCH LEATHER. Due to the different variables with leather, they stay away from it. But when it comes to fabrics and plastics, the dry ice hits the surface quickly expanding into a gas (while contacting the contaminates), and allowing it to lift off the plastic, rubber, or fabric. The damage comes from too much compressing l compression or too close to the material. They haven't seen any damages to their clients vehicles, and they've been doing dry ice for 9 years.
Thank you, 9 years is probably long enough. Though I'm wondering about some soft-touch plastics, that have that thin, rubber-like coating that eventually starts to break down and get sticky after a few years. (Can be removed by isopropyl alcohol). Also some of the plastics in older cars that may get brittle with age. Plastics under the hood already seem to get brittle pretty quickly, so I was wondering if dry ice might accelerate that ageing process which makes plastics increasingly fragile. Likewise rubbers getting dry and cracked. I'm not saying dry ice is bad, I'm just cautious about it's use. On bare, oxidised metals, particularly aluminium and its alloys, I think dry ice is an excellent way to restore surfaces to a very clean appearance. @@Dragonchi1971
@@MrSonicAdvance that's a great question! I never thought about that material aging differently due to the process that dry icing can take it through. You have me visualizing the thin coat on the steering wheels of all BMW's around the airbag. Mine has peeled and possibly others like mine, have that same experience. I'm now wondering as well if dry icing around that would cause that type of material to age faster. Thanks for the persepective, I never thought of this area.
@@Dragonchi1971 Happy to talk it out with you. :) Like I said, I don't know either way, but there are a lot of different materials in cars and I think it's too early to know what the long-term effects are. I doubt the people using dry ice will offer any long term guarantee on premature ageing of surfaces. One more random issue that occurs to me is that manufacturers & garages may well use dry ice cleaning as an additional excuse to not honour warranty claims (no idea what sort of claims), but you never know). Another random issue: What are the effects of dry ice on lubricants on the other side of a metal surface. Ultra low temps can cause permanent chemical changes in oils, which might look like uniform liquids, but they are quite a cocktail of base oils and additives, not to mention any contaminants held in suspension in the oil, the suspension and dispersion of which may be impaired by ultra-low temperatures.
