X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=No+TSIVJ c=1 sm=1 tr=0 a=VFNU8TuZLTvgd6dDXVyjSw==:117 a=1nsjoHFVvht0vDkHa3ZYHg==:17 a=x7bEGLp0ZPQA:10 a=A-0mRrAPPO4A:10 a=2ur7OfE09M0A:10 a=r77TgQKjGQsHNAKrUKIA:9 a=o2QoyYduAAAA:8 a=_6GpL_ENAAAA:8 a=IU6ut5PNjZIX2B0cOmQA:9 a=pILNOxqGKmIA:10 a=4PR2P7QzAAAA:8 a=LCzfyCFcfetjDjPS-30A:9 a=blt6LcyonfxIa1XD:21 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=_W_S_7VecoQA:10 a=frz4AuCg-hUA:10 a=S50rnUa8yRbNnh2hyxzf:22 a=4dqwQCo7Po2mVW515mGf:22 From: "Charlie England ceengland7@gmail.com" Received: from mail-yw1-f52.google.com ([209.85.161.52] verified) by logan.com (CommuniGate Pro SMTP 6.2.10) with ESMTPS id 12052503 for flyrotary@lancaironline.net; Sun, 30 Dec 2018 11:32:02 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.161.52; envelope-from=ceengland7@gmail.com Received: by mail-yw1-f52.google.com with SMTP id f65so9924608ywc.8 for ; Sun, 30 Dec 2018 08:32:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language; bh=0aFmLoGIzHS7P7CdM3/5885AnzKqnacVjrQNOaML7XI=; b=eOOhIMnqHzOEl4lH+QMvglU0mzO9hGTA2bkcctNnIEvl7SHNNwXgoWhCq3Rp9DINVg tnTsChEzYJqmyv1Bds9vhL4aT1rr9nvkZ5ODR1Do2Cw3hXZ4V6knu6eCpYla42GJ2Nqg g91R2LHJrvPtCI873ePx66yxWWlMm+BpzCQECHQ1WDJEYqcChb3Dp+iOm1KSROVE+LY1 jOgKuPZwiBGbzXhMyUiaAH3lfVMAbMcpv8kFDxVNDubTKKCdA+FqBfu7CF+ibK456CIS 8U6bZ4wYCQGQ1zdg74weoDNNWFhbsVOnhU09uPeIJZ7Q5JL1rliXyWyHs+L2mA5AEr/G nYtA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language; bh=0aFmLoGIzHS7P7CdM3/5885AnzKqnacVjrQNOaML7XI=; b=GxqwqgktYgQi9HgsqTq/dZ/WBre46QarwZVbqXFb6R1FNtUx3XtOu+gMIGr79JPfeW oxKRLqRriVDW+sUeCeLkGUdlfkNrMyWk+Dm/IHid7dxN5swLlRzt/6zpLuWGR36iZZe7 tUXVA7Udtz0vbhof6b8NwNzKCzcdzWBtONdMHI3mXlNvQwxFqhMMmgEHZh3OVHq+1Bk/ 1xfMdqlpObYgA8S1ZIWOCOSm/9KoCoAJ2kUxbQV5Nbv/QdypIUFOuVi+FjPVTis+fwla cEQ3Dyybc3EutgLk8J80T1yaMZGl8gcB0MhO/xK6J0ZoueeePSumQUeTq6wgAdYIZytI oo5w== X-Gm-Message-State: AA+aEWY8bqflR3/Xx7EfARJH9rd1Ssx5PpSDqh3sCUp3lmfw2qlmsqDf G62NcJfPmoSusGs0srkH2cj69jQq X-Google-Smtp-Source: AFSGD/U0mZCS5MQoFxp03ilfPM6S9/wxIEzXN630nCBGAChxmmaKCwjfTxmVK+fVa7XPl2gJS+06sg== X-Received: by 2002:a81:4323:: with SMTP id q35mr35501723ywa.119.1546187504751; Sun, 30 Dec 2018 08:31:44 -0800 (PST) Return-Path: Received: from [192.168.10.218] (mobile-166-170-59-148.mycingular.net. [166.170.59.148]) by smtp.googlemail.com with ESMTPSA id n2sm16706400ywe.37.2018.12.30.08.31.43 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 30 Dec 2018 08:31:43 -0800 (PST) Subject: Re: [FlyRotary] Motor mount finishing To: Rotary motors in aircraft References: Message-ID: Date: Sun, 30 Dec 2018 10:34:30 -0600 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.3.3 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------63FF17E3F12530C5F32D990D" Content-Language: en-US X-Antivirus: Avast (VPS 181230-2, 12/30/2018), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. --------------63FF17E3F12530C5F32D990D Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit On 12/30/2018 9:29 AM, Joseph Berki jskmberki@windstream.net wrote: > > What is the preferred method for finishing motor mounts? > > I have a chrome molly mount that has been sitting around for a few > years and has some surface corrosion. > > Do I media blast the outside primer and paint?  I was thinking of > using white to reveal any cracks during the life time. > > Thanks for any help. > > Joe Berki > Hi Joe, When I modified my RV-7 mount for the rotary, I took the mount to a friend's machine shop & media blasted it. IIRC, I brought it straight home, cleaned/degreased it, & painted it with Rustoleum rattle can primer & finish paint (white). It hasn't flown yet, but it's been in a fairly humid environment (Mississippi) for several years without any evidence of corrosion. The downside is that the paint is obviously thinner and not as tough as Van's original powder coating, so it will chip easier if you hit it with a screwdriver tip, etc. The epoxy paints would be a lot more durable, and the expense of chemical risk to you, more complicated application processes, and of course, expense. :-) Whatever finish you use, I'd definitely media blast/degrease, followed immediately by your choice of primer. Charlie --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus --------------63FF17E3F12530C5F32D990D Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: 8bit
On 12/30/2018 9:29 AM, Joseph Berki jskmberki@windstream.net wrote:

What is the preferred method for finishing motor mounts?

I have a chrome molly mount that has been sitting around for a few years and has some surface corrosion.

Do I media blast the outside primer and paint?  I was thinking of using white to reveal any cracks during the life time.

Thanks for any help.

 

Joe Berki

Hi Joe,

When I modified my RV-7 mount for the rotary, I took the mount to a friend's machine shop & media blasted it. IIRC, I brought it straight home, cleaned/degreased it, & painted it with Rustoleum rattle can primer & finish paint (white). It hasn't flown yet, but it's been in a fairly humid environment (Mississippi) for several years without any evidence of corrosion. The downside is that the paint is obviously thinner and not as tough as Van's original powder coating, so it will chip easier if you hit it with a screwdriver tip, etc. The epoxy paints would be a lot more durable, and the expense of chemical risk to you, more complicated application processes, and of course, expense. :-)

Whatever finish you use, I'd definitely media blast/degrease, followed immediately by your choice of primer.

Charlie

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