Received-SPF: softfail
 receiver=logan.com; client-ip=171.71.176.117; envelope-from=echristley@nc.rr.com
Message-ID: <45E5C0D7.3050304@nc.rr.com>
Date: Wed, 28 Feb 2007 12:50:15 -0500
From: Ernest Christley <echristley@nc.rr.com>
Reply-To: echristley@nc.rr.com
User-Agent: Mozilla Thunderbird 1.0.7-1.4.1 (X11/20050929)
MIME-Version: 1.0
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: engine mount 4130 vs 304 SS
References: <list-1874079@logan.com>
In-Reply-To: <list-1874079@logan.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Thomas y Reina Jakits wrote:

> Ernest,
>
> I agree, once you stop air-exchange on the inside it cannot rust a lot 
> for lack of oxygene.
>
> Question: "Rust Wars" - did you never prime or "SP-400" the frame 
> while assembling?
> I know primer is just that, primer for paint and should not be 
> considered protection, but it is better than nothing?
> Wiping with WD-40 helps, but comes fairly fast unless stuck with dust. 
> Also when you need to weld you have to clean extra well not have any 
> of the oils of WD-40 inthe weld area.
>
> Also just plainly painting the frame any cheap paint is good, 
> sand/grind/blast where you need to work and when all is finishes do 
> the one time for all blast/clean/etch/prime/paint/polish/IDKW ......
>
> Thomas
> "..not pulling your hair, just looking for arguments - I am still in 
> the plannig fase, so any and all mistakes you guys ever made and are 
> willing to tell, I hopefully will avoid! Thanx"
>
Wipe down with MEK before welding.  I did prime part of the airplane 
using some Killz primer that I had on hand.  It was advertised as being 
able to paint over oils and wax.  I found it to be a royal pain to strip 
off to add more members.  The WD-40 was settled on as a happy (or not so 
happy) compromise between protection and ease of removal.  Needs 
occasional replenishment, but came off easily with the MEK. It just 
required a lot of extra attention in the summer months.  It was about 4 
years from the first cut till I put the finish paint on the fuselage.

-- 
         ,|"|"|,              Ernest Christley       |
----===<{{(oQo)}}>===----    Dyke Delta Builder      |
        o|  d  |o        http://ernest.isa-geek.org  |