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MaxNr(at)aol.com
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 Posted: Thu Mar 15, 2007 9:12 am Post subject: Newbie building CH701-Corrosion/Gotchas |
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6061 could get by w/o protection. However I live close enough to the Gulf of Mexico to smell it. Zinc Chromate scares me. Paint dealer/buddy fixed me up with some two part Zinc Phosphate like he sells to the USN at NAS Whiting. Label DOES say "professional use only" and "apply top coat within four hours." I only put it on the innards with a small HVLP. Another local builder told me that he used some of that after market corrosion protection on his project. The kind you spray through the inspection ports. Later, could not get paint to stick, no matter what. Going to try some Cortec next that I got from ZAC.
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Bob from Pace,FL
XL/Lyc
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amyvega2005(at)earthlink.
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| Posted: Thu Mar 15, 2007 9:52 am Post subject: Newbie building CH701-Corrosion/Gotchas |
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he probably used corrosionX , paint will never stick after application, it does its job too well.
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n85ae
Joined: 14 Mar 2007
Posts: 403
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| Posted: Thu Mar 15, 2007 10:42 am Post subject: Re: Newbie building CH701-Corrosion/Gotchas |
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Cortec works great, just thin it to the consistency of 2% milk with denatured alchohol, or 50/50 denatured alchohol/distilled water.
Don't let anybody fool you into using it at full goop consistency
it's not designed like that.
I have heard of builders using in thick form, but this is not correct
according to the manufacturer.
If it is on exposed metal, it needs to be topcoated as well.
It is also NOT fuelproof, I dip tested some in Avgas, and it dissolves it.
From Cortec:
Cortec Spec- VpCI®-373 is applied at an extremely thin thickness of 0.5-1.0 mil (12.5-25 microns) DFT
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