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As promised... Here is a video I made (rather long) for those interested in roller coating an automotive 2 part urethane clear over signs and murals.
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Good video, Bill. That's always been a touchy point for me, the 'cobwebs'. At times, we made a mess on the sign; but we then started putting a little retarder in the clear (didn't think about spraying reducer).
But, whatever works.
Did you say that clear was Ditzler or Pittsburg? It was hard for me to understand.
-------------------- Dale Feicke Grafix 714 East St. Mendenhall, MS 39114
"I can do all things through Christ, who strengthens me." Posts: 2963 | From: Mendenhall, MS | Registered: Apr 1999
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Pittsurgh, Dale, but I don't think it matters what brand. I showed the high school art teacher how to do it, and he cleared a mural the students did with a 2 part urethane clear he got from Napa. I think he paid about half for it.
When I get time I'll post some pics of signs I cleared with urethanes that are in and around the 10 year longevity. Some were painted with urethanes and cleared with urethanes, but some are 1 Shot, cleared with urethanes.
I never had much luck with any other type of clears until the urethanes came out. For a while I didn't use them, but I started back up in the 90's after a few visits with body shoppers. When I was using acrylic house paints I noticed the reds fading badly and saw how they faded after visiting the murals painted in Belvediere.
-------------------- Bill Diaz Diaz Sign Art Pontiac IL www.diazsignart.com Posts: 2107 | From: Pontiac, IL | Registered: Dec 2001
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Very good, I need to do that. It could be an adding selling point. As in ,,"For X amount of dollars I can clear your sign/mural and it last for years"
-------------------- Signs by Alicia Jennings (Mudflap Girl) Tacoma, WA Since 1987 Have Lipstick, will travel. Posts: 3820 | From: Tacoma, WA. U.S.A. | Registered: Dec 1999
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we have used shop line and its good stuff for the price. It is a low voc for sure. For higher end jobs nothing surpasses concept clear from PPG. we have rolled clears over stuff and used black foam rollers, and it will take a couple cause the clear will lift the foam off the cardboard roller
clear sheild IMO is pointless if you have to come back every couple years and redo it why use it?
one shot clear, there is no need in even having faith in this product, trash it.
GREAT VIDEO!
[ August 30, 2011, 05:59 AM: Message edited by: bruce ward ]
-------------------- You ever notice how easily accessible people are when they are requiring your services but once they get invoice you can't reach them anymore
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I need to edit this video as I made a mistake on the price of the clear. When I asked Jane for the price I did not factor in that we had ordered 2 gallons of the clear and 2 quarts of the catalyst. So the good news is it is only half what I said and is approximately $100/gal for the clear and $25/qt for the catalyst.
I agree with you, Bruce, about the ClearShield although in my research it has been pointed out that on masonry surfaces, which are porous, it is a distinct advantage to use paint systems that breath and allow moisture trapped behind the walls to migrate out. When paint peels right down to the surface, that is sometimes the culprit. In fact my phone conversation with a Ronan representative revealed that they recommend a total waterbased system on masonry. They recommend a waterbased primer and finish coats.
Ronan recommended their Aquathane UV clear for masonry and I launched out to have some shipped from their distributors which is what they recommended. However none of my distributors (and I'm only a hop-skip-and-a-jump from one of the largest urban centers in the country) heard of Aquathane. So I ordered some direct from Ronan through a distributor in Indiana. Ronan's has this product clearing their sign on their plant painted on brick and it is 7 years old and showing no aging. I'm bound and determined to get to the bottom of all this so us walldoggers can make our efforts last. Even if a wall has to be cleared every 3 years, that to me is a small thing labor wise compared to the efforts of getting a mural done in the first place. You can clear an average mural in an hour or two.
My advice to the manufacturers of lettering enamels is to promote these clearing products and provide all things necessary to educate painters as to the ins and outs of making their work last if that is what the painter and their customers want. If a paint only goes 5 years in average conditions, it should be noted so that the painter can decide whether or not to proceed with it.
It shouldn't be left to some individual in a small town in the middle of the U.S. to come up with a way to make it all worth while. It makes you wonder whether these manufacturers care or if it's just another case of planned obsolesence.
-------------------- Bill Diaz Diaz Sign Art Pontiac IL www.diazsignart.com Posts: 2107 | From: Pontiac, IL | Registered: Dec 2001
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