Jeff,
I think it is up to those building to make their own decisions. Your airplane looks great! But how many flight hours do you have? I will freely admit that my airplane has never won, nor will ever win any awards. But I do have over 900+ hours flying time. The two-part epoxy catalyzed Stewart systems has held up well during those flight hours. I give it a thumbs up for durability. Thanks, Rob From: Jeff York <jeffyor...@gmail.com> Sent: Tuesday, October 27, 2020 7:00 AM To: KRnet <krnet@list.krnet.org> Cc: ROB SCHMITT <robert7...@aol.com> Subject: Re: KR> supplied air respirator options? I would never recommend the water based paints. It takes far more air movement with water based paints in order to get the correct flash times. Far more air movement then you can achieve without a spray booth designed for water based paints. Your results will be lots of runs in the paint and a very poor finish. As far as the cheap Harbor Freight spray guns and the idea that they will paint as well as say maybe a Devilbiss or Iwata or Binks, but just not last as long ? Absolutely not true. An Iwata and other high end guns will atomize paint far better which will result in a far superior paint job. Spraying composites is far different than spraying metal. Composites will leach for months to years causing delamination. There are many steps to a great paint job and this is not the time to cut corners or scrimp on equipment and paint materials. Proper etch priming is critically important. I suggest a true 2 part epoxy primer. I know many spend so many years building and then get anxious and dont do the needed steps and correct steps to achieve the highest end results that highlight years of work. But, I have also spent a year painting a car , airplane or restoration vehicle. But, that efforts shows in a paint job that doesn't fade, peel, have orange peel or runs. On Mon, Oct 26, 2020, 9:14 PM ROB SCHMITT via KRnet <krnet@list.krnet.org <mailto:krnet@list.krnet.org> > wrote: I highly recommend the Stewart Systems water based paints. Not nearly as dangerous. I have had great success with a Harbor Freight mini detail gun, uses less air and much less paint wasted. https://www.harborfreight.com/adjustable-detail-spray-gun-92126.html Rob Schmitt N1852Z Sent from my iPad > On Oct 26, 2020, at 7:09 PM, Kayak via KRnet <krnet@list.krnet.org > <mailto:krnet@list.krnet.org> > wrote: > > I'm not painting my KR yet, but other projects such as a cub cadet > resto, using single stage urethane / catalyst. Apparently you really > dont want to breathe any of that stuff. In doing research I've learned > a lot and only certain respirators will protect you and only for a > short time. Also, once opened, the charcoal starts to "fill up" even > when stored. Best to store in a sealed zip lock bag for that reason. I > read one aircraft painter whos shop standard is to only use the 3m > respirator cartridges for ten minutes before discarding! (they > normally use supplied air). The bad stuff also is odorless (although > the paint carries other odors with it). > > So the bottom lines is that a SUPPLIED AIR RESPIRATOR is really the > way to go. Hobby-Air is a popular one for occasional use, and comes > with 40ft of hose for about $400 from Aircraft Spruce. There are 3 > hood options, half face, full face, and over the head tyvek style. > > I am not sure if the pump unit has any filtration/hepa or charcoal. > > So anyway, the main question is whether anyone has made a DIY supplied > air system? I mean, its just an air pump and hose into a mace mask, > with the air pump outside of the painting area right? How about making > a fitting for my 3m respirator that pushes this air thru the OV/P100 > cartridge OR prefilter by making a pump unit that pulls thru one or > two of those, thru a hose (cheap garden hose? other?) and into a > regular respirator mask? > > Just throwing this out there first to warn new painters from the > dangers, and would love to hear options others here have used for > paint protection... > > As an aside, I bought a $22 harbor freight traditional paint gun > (bottom canister) but found out that HVLP gets more paint on the work > and less overspray and will grab one of those. I saw a test and the > cheap HF guns made out pretty well the main advantage of the $600 ones > is durability not paint quality. > > _______________________________________________ > Search the KRnet Archives at > https://www.mail-archive.com/krnet@list.krnet.org/. > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org > <mailto:krnet-le...@list.krnet.org> _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org <mailto:krnet-le...@list.krnet.org> _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
