POR-15 Just Got Done Using it
09-26-2009, 12:45 AM
#23
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Location: Stuart, FL
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Finally got the engine enamel today, they sent me the wrong color the first time around. One thing they didn't tell me is if you don't paint of the POR-15 within 24 hours you have to scuff it or use their etching primer. This etching primer **** STINKS, but you can't paint over it in 15 minutes. I did the primer this afternoon then a coat of paint. The engine enamel doesn't cover quite as well as the POR-15, but it does pretty good, after the first coat it was looking pretty shitty as the gray primer was still showing through, second coat made it look BEAUTIFUL! I'll snap some pics tomorrow, it's almost 2am and i just got done painting the second coat. That should be enough looks like i got everything covered and it looks good. I'm still really impressed with the way this stuff lays down, it really smoothes out and turns out nice. The color was chrysler blue which ended up matching the perkins blue so well you can't tell the difference.
09-26-2009, 11:26 AM
#24
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Location: Amityville, New York
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did you ask them if you put more por15 over the old por15 if you still needed the etching primer?
meaning if you overcoat por15 with the same maybe you would not have needed the etching primer or had to sand?
meaning if you overcoat por15 with the same maybe you would not have needed the etching primer or had to sand?
09-26-2009, 11:28 AM
#25
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Yes of course, any overcoat has to be done before the por dries, so once the por15 dries if you want to go back over it with POR15 you have to etch it. The stuff is like ceramics when it dries.
09-26-2009, 02:34 PM
#27
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10-13-2009, 07:14 PM
#30
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I have never used POR in an open environment. However we used it to paint the end plates of our heat exchanger which was cast steel and beginning to rust. We let it sit and set, did all the proper prep, and within an hour of bolting the end plates back on and filling our loop with water, the paint was already peeled away and rusting again. On the flip side one of the other programs used it to coat all of their test stand which supports a well known helicopter drivetrain and have had no problems. But the test stand is also in a sealed warehouse. I would say as long as it's not in an environment where it is constantly exposed to water it apparently works well.
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