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Stewart Systems Primer Sealer

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fritzsch(at)eskimo.com
Guest

Posted: Thu Jul 16, 2009 9:36 pm Post subject: Stewart Systems Primer Sealer

I asked this question a while back and got no response.  I will try 

again as things may have changed.  Has anyone used Stewart Systems 

Primer Sealer to prime the inside of their aircraft?  It is water based 

making it much safer for the environment and the person spraying it.  It 

can be seen at www.stewartsystems.aero.  If you have used it, what is 

your experience?  How does it compare to a two-part epoxy primer?  I am 

tempted to try it, but would like some user experience reports prior to 

jumping into the water.



Dave



-- 

~~~~~~~~~~~~~~~~~~~~~~~

Dave Fritzsche

40813 tail cone nearly finished

Puyallup, WA

~~~~~~~~~~~~~~~~~~~~~~~

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pascal(at)rv10builder.net
Guest

Posted: Fri Jul 17, 2009 6:40 am Post subject: Stewart Systems Primer Sealer

Look at the VAF forum and search Stewarts, they had a different name before, 

but there are some good reviews out there.

I'll get it but I'm a few months away from needing it.

P

--------------------------------------------------

From: "Dave Fritzsche (Building)" <fritzsch(at)eskimo.com>

Sent: Thursday, July 16, 2009 10:32 PM

To: <rv10-list(at)matronics.com>

Subject: Stewart Systems Primer Sealer



 	  Quote: 	
		   

 <fritzsch(at)eskimo.com>



 I asked this question a while back and got no response.  I will try again 

 as things may have changed.  Has anyone used Stewart Systems Primer Sealer 

 to prime the inside of their aircraft?  It is water based making it much 

 safer for the environment and the person spraying it.  It can be seen at 

 www.stewartsystems.aero.  If you have used it, what is your experience? 

 How does it compare to a two-part epoxy primer?  I am tempted to try it, 

 but would like some user experience reports prior to jumping into the 

 water.



 Dave



 -- 

 ~~~~~~~~~~~~~~~~~~~~~~~

 Dave Fritzsche

 40813 tail cone nearly finished

 Puyallup, WA

 ~~~~~~~~~~~~~~~~~~~~~~~

- The Matronics RV10-List Email Forum -

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william(at)gbta.net
Guest

Posted: Fri Jul 17, 2009 6:54 am Post subject: Stewart Systems Primer Sealer

I am using it on my wings.  On my tail kit/emp kit (RV-10), I used sherwin 

williams Aeropoxy--2 part primer/sealer.  Aside from it being a pain to mix 

and then let it sit for 30 minutes before sprayed, I like it more than the 

water based Stewart Systems.  The Stewart systems is harder to get the spray 

gun set correctly.  When I first started using it I got lots of "blotches". 

Finally I got the gun set up and It sprays OK.  The nice thing about it is 

that it can nearly be sprayed directly out of the container.  I've found 

that it does take a little water added to get the correct spray consistency.



Please note that I have very little painting experience so others may have 

had better luck with the product.



The stewart systems does have good adhesion.  Probably nearly as good as the 

SW aeropoxy I used.



I'll probably finish the wings with the SS then go back to the SW product on 

the fuse.



Bill

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AV8ORJWC

Joined: 13 Jul 2006
Posts: 1149
Location: Aurora, Oregon "Home of VANS"

Posted: Fri Jul 17, 2009 7:33 am Post subject: Stewart Systems Primer Sealer

I attended their class, reviewed the product and determined it is great

for select applications.  None of which meet mine for the aluminum &

composite RV-10 in our locale.  Others will be happy with it.



I am addicted to acrylic enamels and two part epoxies.  The addiction

began forty years ago and the manufacturers have continued to lower the

VOCs and improve the application equipment at exorbitant pricing.  IMHO,

skin protection and respiratory supply is a must.



Will watch respectfully when a Stewart Systems aircraft gets a Golden

Lindy.



John



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jcumins(at)jcis.net
Guest

Posted: Fri Jul 17, 2009 10:07 am Post subject: Stewart Systems Primer Sealer

Dave

I have used the Primer from Napa Auto Parts.  It is a Acid etching primer to

the Alum. Prep process is only to scuff the shine off the metal wash with

soap and water then prime.  I get it in rattle can at about $7.50 a can when

I but it in a 6 can case.  It works great, is very tuff and I think it is

the cheapest and easiest I have seen out there.  Napa manager told me it is

the same as the Sherwin Williams acid etch product they sell in 2 part

product but them oem it to Napa.



Your welcome to contact me it you want more info



John 

40864 Assy Elavators, and picked up wings last weekend.

N864FC reserved



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dogsbark(at)comcast.net
Guest

Posted: Fri Jul 17, 2009 8:40 pm Post subject: Stewart Systems Primer Sealer

Hi Dave, 

  

I used Stewart Systems exclusively during my portion of the build.   Wings, Fuse, and Emp.  I thought it was great.  If you see "blotches" it needs thinned.  I think you can thin it up to one third water (that's too much).  I found the key was putting on a very thin coat first and letting it setup a little before the next was applied.  I would use it again. 

  

I used the cheap touch up gun from Harbor Freight and it was perfect for the task.  Clean up was easy, too. 

  

Plenty of pics and some narrative at:  http://websites.expercraft.com/seanb/ 

  

Good luck, 

  

Sean  

  

  

  

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ddnebert

Joined: 14 Jun 2007
Posts: 17

Posted: Sat Jul 18, 2009 7:53 pm Post subject: Re: Stewart Systems Primer Sealer

I have been using the Stewart Systems smoke grey primer/sealer for all of the interior surfaces and used some spray can etch primer (green) for small batches and odd pieces that I didn't want to set up and clean for. If you mix it with ~20% or less water and use it patiently in warm temperatures -- spray a tack coat, let dry and continue, it has worked great. I am contemplating priming the exterior this summer in a 'temporary garage' tent-like structure in the driveway while the temps are good and before it all comes together. 



Just as with framing and wallboard, I don't mind doing the basic first stages, but I am reluctant to do the finish coat painting myself. I am hoping to find a shop familiar with the SS paints for the finish paint job. 



From what I hear, the water-soluble paints will be prevalent in the future given VOC handling issues (equip and cost)

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_________________
RV-10 Builder #40546
Tail mostly done, wings complete, end of SB fuse, working on doors and fiberglass

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