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Pietenpol-List: I’m back! And varnishing the fuse... how m

 
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jbfjr(at)peoplepc.com
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PostPosted: Sun Sep 02, 2018 11:33 am    Post subject: Pietenpol-List: I’m back! And varnishing the fuse... how m Reply with quote

Mark,

For starters I would apply enough coats to fill the grain...I didn't do that and black mildew got in the pores which I had a hassle removing later. Second, you can use spar varnish except for places where the fabric will touch, those areas you should use a two-part epoxy varnish that MEK will not attack.

Good luck,
John F.

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VicGroah



Joined: 28 Nov 2015
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PostPosted: Sun Sep 02, 2018 12:08 pm    Post subject: Pietenpol-List: I’m back! And varnishing the fuse... how m Reply with quote

Mark. great to hear from you,  It has been too long.  Yes, some of us westerners remember you.  It does not seem that long you were in our shop looking at our then going together Piet build.  We miss you here out west.  Hope the mid country is treating you well.  Thanks for keeping in touch.  Vic Groah 414MV.
On Sun, Sep 2, 2018 at 11:55 AM Mark Roberts <mark.rbrts1(at)gmail.com (mark.rbrts1(at)gmail.com)> wrote:

Quote:
Hello all!
After a little over six years of hibernation, I am beginning work on the Piet again.  We’ve been in a condominium for about four years, and this winter move to a house with an oversize garage that will allow me to work on the plane.
When I had to stop working on the plane I had put one coat of varnish on the majority of the structure, and in some places to coats. 
 When I had to stop working on plane I had put one coat of varnish on the majority of the structure, and some places to coach.  As I return to the project, I am wondering if the entire structure needs two coats of varnish or if one coat is sufficient in the rear of the airplane. Places that will see wear I would imagine would require two coats or three.
What is the advice of the wise?
To all my West Coast Pieter friends, I’m now in Smyrna Tennessee (just outside of Nashville).
Is there anyone in the Middle Tennessee area building a Piet?
Thanks for the varnishing advice. I’m sanding down the structure after the last coat and trying to determine how much to do.
Mark Roberts


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Catdesigns



Joined: 22 Mar 2006
Posts: 505
Location: Sacramento, CA

PostPosted: Sun Sep 02, 2018 1:12 pm    Post subject: Pietenpol-List: I’m back! And varnishing the fuse... how m Reply with quote

In California I'm doing 2 coats, but we don't have much rain and humidity.

Chris

Sent from Yahoo Mail on Android

Quote:
On Sun, Sep 2, 2018 at 11:53 AM, Mark Roberts
<mark.rbrts1(at)gmail.com> wrote:

Hello all!
After a little over six years of hibernation, I am beginning work on the Piet again. We’ve been in a condominium for about four years, and this winter move to a house with an oversize garage that will allow me to work on the plane.
When I had to stop working on the plane I had put one coat of varnish on the majority of the structure, and in some places to coats.
When I had to stop working on plane I had put one coat of varnish on the majority of the structure, and some places to coach. As I return to the project, I am wondering if the entire structure needs two coats of varnish or if one coat is sufficient in the rear of the airplane. Places that will see wear I would imagine would require two coats or three.
What is the advice of the wise?
To all my West Coast Pieter friends, I’m now in Smyrna Tennessee (just outside of Nashville).
Is there anyone in the Middle Tennessee area building a Piet?
Thanks for the varnishing advice. I’m sanding down the structure after the last coat and trying to determine how much to do.
Mark Roberts




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glen



Joined: 17 Sep 2013
Posts: 166
Location: Oregon Coast

PostPosted: Sun Sep 02, 2018 1:51 pm    Post subject: Pietenpol-List: I’m back! And varnishing the fuse... how m Reply with quote

About varnishing, first, I hope you’re using something requiring the use of a hardener Urethane or epoxy will show you the best chemical resistance, and of the two urethane is better. Urethane is also better for u v (sunshine) resistance.
Two coats of a good urethane is more than adequate to seal out moisture. No real need for sanding between coats unless surface is dirty or for appearance concerns. 3coats with 320grit sanding between coats should make it look like a piano😃
Any varnish in contact with your chosen finishing system must be able to resist that chemistry so check for compatibility .
Quote:
On Sep 2, 2018, at 11:51 AM, Mark Roberts <mark.rbrts1(at)gmail.com> wrote:

Hello all!

After a little over six years of hibernation, I am beginning work on the Piet again. We’ve been in a condominium for about four years, and this winter move to a house with an oversize garage that will allow me to work on the plane.

When I had to stop working on the plane I had put one coat of varnish on the majority of the structure, and in some places to coats.

When I had to stop working on plane I had put one coat of varnish on the majority of the structure, and some places to coach. As I return to the project, I am wondering if the entire structure needs two coats of varnish or if one coat is sufficient in the rear of the airplane. Places that will see wear I would imagine would require two coats or three.

What is the advice of the wise?

To all my West Coast Pieter friends, I’m now in Smyrna Tennessee (just outside of Nashville).

Is there anyone in the Middle Tennessee area building a Piet?

Thanks for the varnishing advice. I’m sanding down the structure after the last coat and trying to determine how much to do.

Mark Roberts


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Mark Roberts



Joined: 06 Mar 2012
Posts: 265

PostPosted: Sun Sep 02, 2018 2:09 pm    Post subject: Re: Pietenpol-List: I’m back! And varnishing the fuse... h Reply with quote

Thanks for the replies thus far. I am using Man-o-war spar varnish to coat the fuse.

It appears that I will need to coat the edges that will touch the fabric with a top coat of urethane or epoxy to keep the varnish from being dissolved by the fabric covering installation...

I have been out in the garage sanding today. After all the moves we've been through over the last 7 years, I am trying to remember where I was in the process. It appears I didn't do a very good job getting all of the wood covered where I thought I had. A few missed spots in corners and such. With all of the sticks and angles, you have to be very careful to look at every nook and cranny!

And Vic! So good to hear back from you. It was indeed your workshop in Visalia where I first saw and sat in a Piet - yours - waiting on my plans set to arrive. Tell Mike I said howdy. That picture is very nice!

Restarting is more challenging than I thought, as I have to rebuild the momentum - and belief that I will actually finish this project!

Any other people using Man-O-War spar varnish to coat the wood? At the time I was painting this it was what was recommended I believe...


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taildrags



Joined: 29 Dec 2009
Posts: 1607
Location: Medford, OR

PostPosted: Sun Sep 02, 2018 2:31 pm    Post subject: Re: Pietenpol-List: I’m back! And varnishing the fuse... h Reply with quote

Mark: not so fast on the chemical compatibility issue between your varnish and the fabric covering system. Although I would want my fabric to be attached directly to clean bare wood, you should first decide which covering system you're planning to use and then read their manual or directions on prepping the wood for cover. The Stewart system uses water as the carrier for their catalyzed polyurethane in the covering process while the Poly-Fiber process uses VOCs as the carrier. Once you decide on a covering system, you should be able to ask their product rep (typically a toll-free tech line) about compatibility with your particular varnish (alkyd resin Man-O-War) as well as getting recommendations for surface prep. It may lower your work effort while still providing a safe and durable fabric attachment to the wood. If, on the other hand, they recommend that you sand the varnish off the wood surfaces first, then just put on some music and prepare for hours of relaxing with some sandpaper and dust ;o)

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Mark Roberts



Joined: 06 Mar 2012
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PostPosted: Mon Sep 03, 2018 3:59 pm    Post subject: Re: Pietenpol-List: I’m back! And varnishing the fuse... h Reply with quote

Hey Vic:

I went to call you today, and somehow your phone number dropped out of my phone. I had Mike's, but missing yours. I was gonna call and just say hi and catch up.

If you want, drop me your number via email (not here) at mark.rbrts1 (at) gmail.com

I tried to call Mike, but it ran to voice mail and it was full.

All the best,

Mark


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