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NAPA self etching Primer...Anybody use this?

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Andrewlieser

Joined: 15 Mar 2008
Posts: 43
Location: Chicagoland

Posted: Fri May 02, 2008 8:47 am Post subject: NAPA self etching Primer...Anybody use this?

Has anyone used the NAPA 7220 self etching primer on their Zenith?  It seems to be quite popular with th RV guys and would be more accessible for me.  Just wondering if it offers the same corrosion protection......



Andrew Lieser

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Andrew Lieser
S/N 6-7045
http://websites.expercraft.com/andrewlieser

Tim Juhl

Joined: 21 Mar 2006
Posts: 488
Location: "Thumb" of Michigan

Posted: Fri May 02, 2008 8:54 am Post subject: Re: NAPA self etching Primer...Anybody use this?

I use SEM self-etching primer but I believe what applies to one, applies to all.

Zinc chromate would be the best for corrosion protection but you can't get it in rattle cans and it's use is restricted.  Self etching primers provide good adhesion and provide some protection where aluminum pieces are riveted together.  When used on steel it MUST be topcoated.



If you do a search you will find that there has been much discussion on this issue in the past.



Tim



do not archive

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ch701builder

Joined: 07 Feb 2006
Posts: 119
Location: N38.9947,W105.1305,ALT. 9,100'

Posted: Fri May 02, 2008 9:25 am Post subject: NAPA self etching Primer...Anybody use this?

I use the NAPA 7220 for my plane. I also read on an RV-site that once he found out about it, he started using and and never looked back!!

 

 Keith

 ********************************************************************************

 

 Andrewlieser wrote:  	  Quote: 	
		    	  Quote: 	
		  --> Zenith-List message posted by: "Andrewlieser" <Andrewlieser(at)gmail.com> (Andrewlieser(at)gmail.com)



Has anyone used the NAPA 7220 self etching primer on their Zenith?  It seems to be quite popular with th RV guys and would be more accessible for me.  Just wondering if it offers the same corrosion protection......



Andrew Lieser



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Andrew Lieser





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=180716#180716



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ihab.awad(at)gmail.com
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Posted: Fri May 02, 2008 9:35 am Post subject: NAPA self etching Primer...Anybody use this?

On Fri, May 2, 2008 at 10:22 AM, Keith Ashcraft <keith.ashcraft(at)itt.com (keith.ashcraft(at)itt.com)> wrote:

 	  Quote: 	
		          I use the NAPA 7220 for my plane. I also read on an RV-site that once he found out about it, he started using and and never looked back!!

 

	


Do you buy it at your local NAPA store? Any NAPA store? I tried searching on their Website but could not find it. Thanks and cheers,



Ihab

-- 

Ihab A.B. Awad, Palo Alto, CA  [quote][b]

Andrewlieser

Joined: 15 Mar 2008
Posts: 43
Location: Chicagoland

Posted: Fri May 02, 2008 9:35 am Post subject: Re: NAPA self etching Primer...Anybody use this?

Thanks Tim,  I do not live in a VERY corrosive type of environment but it did want to use some type of primer.  I don't like ZINC chromate, nasty stuff, and my other choice was going with Corrosion X but its not as available as 7220 and more expensive.  Thanks for your response,



Andrew

601XL S/N - 6-7045

Rudder almost complete!

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Andrew Lieser
S/N 6-7045
http://websites.expercraft.com/andrewlieser

Andrewlieser

Joined: 15 Mar 2008
Posts: 43
Location: Chicagoland

Posted: Fri May 02, 2008 9:54 am Post subject: Re: NAPA self etching Primer...Anybody use this?

Ihab my local store has it in but it probably varies.  I could not locate it on the NAPA site either but one call cleared it up!  Glad to hear it worked well for you Kieth!

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Andrew Lieser
S/N 6-7045
http://websites.expercraft.com/andrewlieser

ch701builder

Joined: 07 Feb 2006
Posts: 119
Location: N38.9947,W105.1305,ALT. 9,100'

Posted: Fri May 02, 2008 10:41 am Post subject: NAPA self etching Primer...Anybody use this?

Hi Ihab,

Yes sir, I go to the local NAPA store and buy the rattle cans. Anywhere between $4-$6 a can. It is pretty much equivalent to GPB 988, but 1/2 the cost

rbjjr

Joined: 18 Mar 2007
Posts: 36

Posted: Fri May 02, 2008 3:26 pm Post subject: Re: NAPA self etching Primer...Anybody use this?

Just FYI...



Zinc Chromate is readily available in rattle cans and is easy to get.  Tempo has a Marine Zinc Chromate primer that according to their site is self etching.  I have tried it on well cleaned and acid etched 6061 and it adheres very well.  I can get it at my local hardware store, West Marine and Boat US.  I plan to use it plus Corrosion X.



Burke Johnson

CH701

JohnDRead(at)aol.com
Guest

Posted: Fri May 02, 2008 4:10 pm Post subject: NAPA self etching Primer...Anybody use this?

It works great I use it all the time on the 701 I am building. do not  archive.

  

 John  Read



Phone: 303-648-3261

Fax: 303-648-3262

Cell: 719-494-4567   

  In a message dated 5/2/2008 10:50:53 A.M. Mountain Daylight Time,  Andrewlieser(at)gmail.com writes:

  	  Quote: 	
		  -->    Zenith-List message posted by: "Andrewlieser"    <Andrewlieser(at)gmail.com>



Has anyone used the NAPA 7220 self    etching primer on their Zenith?  It seems to be quite popular with th RV    guys and would be more accessible for me.  Just wondering if it offers    the same corrosion protection......



Andrew    Lieser



--------

Andrew Lieser





Read this topic    online    here:



http://forums.matronics.com/viewtopic.php?p=180716#180716

	






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  [quote][b]

Tim Juhl

Joined: 21 Mar 2006
Posts: 488
Location: "Thumb" of Michigan

Posted: Fri May 02, 2008 4:17 pm Post subject: Re: NAPA self etching Primer...Anybody use this?

I stand corrected.  Checking West Marine I found this:  MOELLER Zinc Chromate Primers From $15.99 USD  -  I also see that aircraft spruce is now carrying cans made by PTI.  You do pay a premium for shipping, however.



That said, Zinc Chromate is still nasty stuff.  I used to teach chemistry and at one point the state made us turn over all bottles of Chromate compounds to a toxic waste disposal company.  There are a lot of things I used to handle and inhale without protection that have since been found to be very hazardous.  Good corrosion protection but use it with care.

Tim

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CFII
Champ L16A flying
Zodiac XL - Jabiru 3300A
Almost done! It'll fly in spring!

Andrewlieser

Joined: 15 Mar 2008
Posts: 43
Location: Chicagoland

Posted: Fri May 02, 2008 4:23 pm Post subject: Re: NAPA self etching Primer...Anybody use this?

Thanks to everyone who replied!  I should get some time to do the priming this weekend and hopefully riveting!  I will post some pictures on my webpage of the 7220 priming for all who may in the future be curious.

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Andrew Lieser
S/N 6-7045
http://websites.expercraft.com/andrewlieser

jmcburney(at)pobox.com
Guest

Posted: Sat May 03, 2008 5:48 am Post subject: NAPA self etching Primer...Anybody use this?

I've bought Dupli-Color self-etching primer at Pep Boys.  It works very

well, but give it time to cure after spraying.  It's still soft, even when

it's tack-free.  Over-night cure seems to allow it to toughen up and bond

well.



Do not archive



Blue skies and tailwinds



Jim

CH-801

DeltaHawk diesel

Augusta GA

90% done, 90% left

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