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Powder Coating Pro's and Con's

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Jaybannist(at)cs.com
Guest

Posted: Sat Jun 21, 2008 4:03 pm Post subject: Powder Coating Pro's and Con's

Larry,



I think powder coating would be great, especially for the dual sticks parts.  I painted with RustOleum and they have already gotten scuffed up a lot. There is a lot of work that must be done around those parts and they will take a beating.  Not that I am particularly abusive , but sh..t happens!  I imagine a powder coating would be able to withstand the abuse a lot better than RustOleum.



Jay in Dallas

"lwhitlow" <ldwhitlow(at)comcast.net> wrote:



 	  Quote: 	
		  



All



What's the consensus about powder coating the 4130 Steel parts??



I know your not supposed to powder coat the motor mount, because it makes it harder to spot small cracks, but what about the other parts??



I'm installing the dual stick option right now, so now would be the time to get it done



Opinions???  Best guess???  Wild A** Speculation  [Laughing] ???



Thanks 



Larry





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psm(at)att.net
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Posted: Sat Jun 21, 2008 4:39 pm Post subject: Powder Coating Pro's and Con's

Hi Larry,



I would avoid powder coating anything in an airplane.  Powder coat is 

essentially melted polyurethane which when burned produces large 

quantities of hydrogen cyanide gas.  That is not the kind of stuff 

you want in a cockpit when you can't immediately land.  In the old 

days before lethal injections, that is the gas they used to execute criminals.



For my steel parts, I used epoxy primer from the automotive paint 

store.  This is the same stuff that goes under the final paint 

job.  It is a bit expensive at just under $100 for a gallon and a 

half (1 gallon paint, 1/2 gallon hardener) but that goes a long way.



I recently discovered the cheap little HVLP touch up paint gun from 

harbor freight works just fine.  Of course you need the standard 

safety equipment - respirator and gloves.



Good luck,



Paul

XL getting close

At 04:18 PM 6/21/2008, you wrote:

 	  Quote: 	
		  What's the consensus about powder coating the 4130 Steel parts??



I know your not supposed to powder coat the motor mount, because it 

makes it harder to spot small cracks, but what about the other parts??

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amyvega2005(at)earthlink.
Guest

Posted: Sat Jun 21, 2008 4:51 pm Post subject: Powder Coating Pro's and Con's

most aircraft produced with chrome molly tubing are Powder coated.  It works great and not expensive.  Maules, Huskys, Lots of Cubs.



Most engine mounts produced are powder coated.  If my pipes are burning,  I'm probably allready Dead.



Corroded pipes are far worse.



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lwhitlow

Joined: 15 Jan 2006
Posts: 76
Location: Valparaiso Indiana

Posted: Sun Jun 22, 2008 8:26 am Post subject: Re: Powder Coating Pro's and Con's

 	  psm(at)att.net wrote: 	
		  Hi Larry,



I would avoid powder coating anything in an airplane.  Powder coat is 

essentially melted polyurethane which when burned produces large 

quantities of hydrogen cyanide gas.  That is not the kind of stuff 

you want in a cockpit when you can't immediately land.  In the old 

days before lethal injections, that is the gas they used to execute criminals.



>>>> Removed some for brevity<<<<<<<

Good luck,



Paul

XL getting close



	


Paul, and others



Powder coating is NOT polyurethane.  It is usually polyester, a polyester epoxy blend or more recently a fusion bonded epoxy.  These materials when burned produce no particularly noxious fumes ( Maybe very unpleasant but not toxic).



Besides lets have a reality check here,  the average coating (paint or powder) is 30 to 50 microns thick. I'm way more concerned about the fuel lines in the cockpit during a fire than the coating on the control stick.



And if the stick coating is on fire  considering its proximity to >>AHEM<< shall we say sensitive parts of my anatomy  I'm not sure I'd really be in control of much anyway  



BTW I'm going to change the lines in the cockpit to all metal to a fitting on the side of the fuse. I'm only gonna use flex where I have to.



Thanks for the opinion Paul  I know others have had good success with painting those parts, glad to hear your happy with your setup



Thanks



Larry

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cndmovn(at)gmail.com
Guest

Posted: Mon Jun 23, 2008 5:36 pm Post subject: Powder Coating Pro's and Con's

Asked the same question the other day to a powder coating guy and an AME.  Both said the same thing....In the past powder-coating was very thick, therefore the fear of it hiding a crack.  However today the coatings are much thinner and they are not concerned at all about it.  I went ahead and coated my engine mount, landing gear and other misc metal parts

 

On Sat, Jun 21, 2008 at 8:48 PM, Juan Vega <amyvega2005(at)earthlink.net (amyvega2005(at)earthlink.net)> wrote:

[quote] --> Zenith-List message posted by: Juan Vega <amyvega2005(at)earthlink.net (amyvega2005(at)earthlink.net)>

 

 most aircraft produced with chrome molly tubing are Powder coated.  It works great and not expensive.  Maules, Huskys, Lots of Cubs.

 

 Most engine mounts produced are powder coated.  If my pipes are burning,  I'm probably allready Dead.

 

 Corroded pipes are far worse.

 



 

 

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