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Painting the firewall

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zenoah

Joined: 01 May 2008
Posts: 4
Location: Navarre, FL

Posted: Sat Nov 21, 2009 11:13 am Post subject: Painting the firewall

Hey guys,

  

 I would like to paint my firewall, what is the best  way to prep and paint galvanized steel?  Will scuffing and priming  with self etching primer work?  

  

 Thanks,

  

 Steve Sims

 601HDS

 Corvair

   [quote][b]

JohnDRead(at)aol.com
Guest

Posted: Sat Nov 21, 2009 8:08 pm Post subject: Painting the firewall

Hi Steve;

         Not much works on  galvanized steel, most rattle can paints say they are not for galvanized metal.   I wanted to paint my FW so I could better see oil leaks  etc. I found a Krylon product "Fusion for plastic" in Walmart. It is made for  difficult to coat surfaces. I just cleaned the surface well prior to  painting, it seems to have stuck on quite well. 

  

 John  Read

CH701 - Elbert CO - Jabiru 3300



Phone: 303-648-3261

Fax:  303-648-3262

Cell: 719-494-4567   

  In a message dated 11/21/2009 12:14:02 P.M. Mountain Standard Time,  zenoah(at)mchsi.com writes:

  	  Quote: 	
		     Hey guys,

    

   I would like to paint my firewall, what is the    best way to prep and paint galvanized steel?  Will scuffing and    priming with self etching primer work?  

    

   Thanks,

    

   Steve Sims

   601HDS

   Corvair

 	  Quote: 	
		  



====================================

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m/ href="http://www.buildersbooks.com/">www.buildersbooks.com

"http://www.homebuilthelp.com/">www.homebuilthelp.com

tp://www.matronics.com/contribution">http://www.matronics.com/contribution

====================================

 href="http://www.matronics.com/Navigator?Zenith-List">http://www.matron====================================

ms.matronics.com/">http://forums.matronics.com

====================================



	
	




  [quote][b]

daveaustin2(at)primus.ca
Guest

Posted: Sun Nov 22, 2009 5:00 am Post subject: Painting the firewall

I didn't paint my firewall because I didn't want  anything on it that would burn or emit toxic gasses.

 My two cents worth.

 Dave Austin 601- 912

    [quote][b]

daveaustin2(at)primus.ca
Guest

Posted: Sun Nov 22, 2009 5:04 am Post subject: Painting the firewall

Steve,

 Don't scuff the galvanized - you'll ruin the anti-  rust properties.

    [quote][b]

jaybannist(at)cs.com
Guest

Posted: Sun Nov 22, 2009 6:14 am Post subject: Painting the firewall

Steve,

 

 There is no "ordinary" paint or primer that will permanently adhere to galvanized steel.  You can find quite a few commercially available products that claim to work on galvanized steel, but I have seen many of these fail.  About the only way to assure that paint will survive is to have the part bonderized and prime painted at the factory that made the part.  That is a process something like alodining aluminum to prepare it for painting.  Bonderizing is a fairly common practice for factory primed galvanized steel doors, but I seriously doubt that Zenith has the capability to do it.  In order to minimize the chance of galvanic corrosion,  I used a self-etching primer on all the aluminum parts I fastened to the firewall and did the same on all the holes I drilled through the galvanized steel.  Otherwise the firewall is unpainted. I just didn't want to deal with the possibility of peeling paint down the road.

 

 Jay Bannister

 

 PS  My knowledge of painting galvanized steel comes from practicing architecture for 45 years and seeing the inevitable failure of field-applied coatings on galvanized steel..

 

   

 

  --

z601a(at)anemicaardvark.c
Guest

Posted: Sun Nov 22, 2009 6:23 am Post subject: Painting the firewall

On Sunday 22 November 2009 08:00, jaybannist(at)cs.com wrote:



 	  Quote: 	
		   PS  My knowledge of painting galvanized steel comes from practicing

 architecture for 45 years and seeing the inevitable failure of

 field-applied coatings on galvanized steel..


	


.and that, IMHO, is the acid test. It didn't work in the field, when measured 

over a long period of time, as determined by a qualified and knowledgable 

observer.



-- 

=============================================

                Do not archive.

=============================================

                Jim B Belcher

    BS, MS Physics, Math, Computer Science

                  A&P/IA

     Retired aerospace technical manager



     Mathematics and alcohol do not mix.

         Do not drink and derive.

=============================================

goodings(at)yorku.ca
Guest

Posted: Sun Nov 22, 2009 6:24 am Post subject: Painting the firewall

We used a rattle can that said Galvanized Metal Primer (obtained from 

Canadian Tire in Canada).  We wiped the firewall clean with solvent and 

then sprayed it.  It came out a mat finish, greyish-white.  It looked 

nice.  Seven years later, the firewall has shown no sign of detereoration. 

The paint stuck very well.  We didn't put anything on top of the primer.



John Goodings, C-FGPJ, CH601HD with R912S, Carp/Ottawa/Toronto.

Tonyplane(at)bellsouth.ne
Guest

Posted: Sun Nov 22, 2009 8:26 am Post subject: Painting the firewall

I used a spray can of " Industrial zinc galvanizing" paint on my firewall for both sides. Maker was I believe Rustolium (sp)  Prep was cleaning with lacquer thinner. Has held up for about five years (since paint) and 547 flight hrs.

Tony Graziano

601 XL/Jab 3300  



Sent from my iPhone



On Nov 22, 2009, at 8:24 AM, John Goodings <goodings(at)yorku.ca> wrote:






We used a rattle can that said Galvanized Metal Primer (obtained from Canadian Tire in Canada).  We wiped the firewall clean with solvent and then sprayed it.  It came out a mat finish, greyish-white.  It looked nice.  Seven years later, the firewall has shown no sign of detereoration. The paint stuck very well.  We didn't put anything on top of the primer.



John Goodings, C-FGPJ, CH601HD with R912S, Carp/Ottawa/Toronto.

Afterfxllc(at)aol.com
Guest

Posted: Sun Nov 22, 2009 9:34 am Post subject: Painting the firewall

I painted one last year with just etching primer that Auto Zone carries in  a rattle can and it still looks just like it did the day I painted it. I used to  use 2 part etching primer but the Green etching primer at Auto Zone is all I use  when building and it dries super fast.

  

 Jeff

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Gig Giacona

Joined: 10 Jan 2006
Posts: 1416
Location: El Dorado Arkansas USA

Posted: Mon Nov 23, 2009 7:52 am Post subject: Re: Painting the firewall

 	  z601a(at)anemicaardvark.c wrote: 	
		  

.and that, IMHO, is the acid test. It didn't work in the field, when measured 

over a long period of time, as determined by a qualified and knowledgable 

observer.

	




Here's a data point to add to that. I've got a galvanized trash can that is older than my high school senior son. It has been outside since the day I bought it. Take away the dents that have accumulated over the years and it would look pretty much like it did they day I bought it.

_________________
W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR

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