Clear Coating RR Signs - myLargescale.com > Community > Forums

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Old 09-03-2020, 02:24 PM   #1 (permalink)
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Default Clear Coating RR Signs

Over the last 7 years I have picked up a number of porcelain railway related signs from Britain. They are labeled to be OK for outdoor use. In an attempt to extend their life I first tried Krylon Clear Coat. After a year or so some of the lettering started to lift off of the sign. I then tried Flex Seal Clear Spray. That caused to same problem only much quicker. Maybe I should have left them alone? I have a couple of larger uncoated general RR signs around the yard and these have held up well with only a little fading. Any suggestions?













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Old 09-03-2020, 04:08 PM   #2 (permalink)
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I have used krylon clear ACRYLICS in flat, satin and gloss for years on most everything outside for protection with no problems. Is what you are using acrylic or solvent based?
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Old 09-04-2020, 09:30 AM   #3 (permalink)
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Thanks Paul. I think you put your finger on the problem. Both sealants appear to be solvent based. I should have known better.
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Old 09-11-2020, 06:24 AM   #4 (permalink)
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When you spray the whole thing and there is a compatibility issue, you may very well ruin it all. Like the instructions are on some products, try in on an inconspicuous place. Or try it in a very small place and see what happens. And sometimes get away with it with very light coats.

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