X-Virus-Scanned: clean according to Sophos on Logan.com From: "William Jepson" Received: from mail-ua0-f176.google.com ([209.85.217.176] verified) by logan.com (CommuniGate Pro SMTP 6.2c3) with ESMTPS id 9831952 for flyrotary@lancaironline.net; Fri, 16 Jun 2017 18:38:14 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.217.176; envelope-from=wrjjrs@gmail.com Received: by mail-ua0-f176.google.com with SMTP id m31so33504692uam.1 for ; Fri, 16 Jun 2017 15:38:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=mXaQPHXof9s3m89wPWz5WWYV+ob2JHZTp0blbECvOfk=; b=Q6D7nQ3BGTV8H5UU5d1DhMLQld4Dn8TEdDJOHLoTepiJ+bAnOvWwlN2tumBrICH5fl Sgzk3O4XKKeLW0V7geSh6FXbNDnEwlfCe9eEUTLgevpfS7eOVA/QzrC+CPGvf1Bkab9U xMYHPhzlkeR02AuT8OAC0qKuT2ZRuAWIHSew7A1SdwSUgyoKmipYvXoNA48vUsNBWw6P FGYz9vxGXlV5zFZYUK1dorjJ/uYIcHtDQFO6QxwJngNvKoh1L7OTC/CSnU0fnYMOiRpP T2AD4u5Tx5tkEpnmGaF7VG9kBG0/zWM06rxSt+8PmOvpl9YYos8KqcFP3l7T1S0YcOsG KzEw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=mXaQPHXof9s3m89wPWz5WWYV+ob2JHZTp0blbECvOfk=; b=b/UbhjP8J4edkQReKr3pN8vr8BR5+ke+FXthu42K1r95MAlPi2eIv9K1Y+YFNMJliB V1SIHkW0LX0BAxcMcbayzcwTHyWzE00TX0uX0a3blVk7QeC/B8QbW8iAcTZb3xRoyqGy +UsBvdrtHHSseeV3v7smlNZDsQxlCvBl9YCbYiWP255A4VSm/wHWdh6TOsyWHSPi6371 EDe73/iROXNpRm1GtBGxW9qcoDEc8mnqYh+NLilAH4oci+XtPmG6HkTpZiwT+858TgOM vtN1lwWsHTYLdvaHJ4cwxPyEXuCZJiiB5aVK0+U3VPkP/YsICyB37Gc2PiB3h1Nz0/+u wODw== X-Gm-Message-State: AKS2vOwOdI5sem/F+3XiFkefOdlbLllAijvv52rhI47EXAECCOI6NvO/ OCsd6rBLlKxEsd3321scfNvQug1bew== X-Received: by 10.159.51.202 with SMTP id y10mr1661325uab.130.1497652675463; Fri, 16 Jun 2017 15:37:55 -0700 (PDT) MIME-Version: 1.0 Received: by 10.31.163.147 with HTTP; Fri, 16 Jun 2017 15:37:54 -0700 (PDT) In-Reply-To: References: Date: Fri, 16 Jun 2017 15:37:54 -0700 Message-ID: Subject: Re: [FlyRotary] Re: ceramic coating To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="f403043efbf4b7d07e05521b6f3f" --f403043efbf4b7d07e05521b6f3f Content-Type: text/plain; charset="UTF-8" Todd, When I was racing motorcycles the tight fairings were always a problem. Until Ti came into more common use I, cheap bastard that I am, always railed against the cost sending a brand new pipe to jet-hot. But I did it several times and the result was always a pipe that didn't corrode. I never had one crack or fail in 10 years of race bikes. Bill Jepson On Fri, Jun 16, 2017 at 1:08 PM, Ernest Christley < flyrotary@lancaironline.net> wrote: > I have it on the outside of the exhaust pipes on my Corvair. Scratches > off easily. > > > On Thursday, June 15, 2017 5:45 PM, Todd Bartrim < > flyrotary@lancaironline.net> wrote: > > > It appears that Jet-Hot is a service business and not a product that I can > buy. They may have their own proprietary coatings but it doesn't appear > that they sell them as a product but only as a service for which I'd have > to send my stuff out-of -country to have them apply it. > I can get it done here in Canada by any number of businesses that use a > variety of products including Cerakote and Ceramakrome. Unfortunately none > of them are local and other than VHT, I haven't been able to find a product > in Canada to do it myself. > So unless somebody speaks up with a glowing recommendation for VHT, then > I'll resign myself to shipping them away to have someone do it for me. > > Todd Bartrim > > On Thu, Jun 15, 2017 at 12:26 PM, William Jepson < > flyrotary@lancaironline.net> wrote: > > Todd, I haven't used the VHT coating, but I have used the Jet-Hot > coatings. They have performed great. They have a high-temp coating that > will work for rotaries. The wraps tend to cause corrosion since they seem > to trap condensation. > Bill Jepson > > On Thu, Jun 15, 2017 at 12:21 PM, Todd Bartrim < > flyrotary@lancaironline.net> wrote: > > Has anybody tried using VHT Flameproof, ceramic coating ? It's rated up to > 2000F intermittent. > I've been running my engine with exhaust wraps and am very pleased with > the reduction of under cowl temps but am aware of the concerns regarding > longevity of the exhaust. > As I'm very near to returning to the airport I want to address this and go > with a ceramic coating. > I have the ability and facilities to apply a proper ceramic coat, but it > is difficult to source the material at a reasonable cost and timeframe. > I can ship it away and have it done for about the same price and less > time. But I can also purchase VHT locally. While it comes in an aerosol > can, it is not paint. It can be applied as simple as you would a paint, but > for best results, proper cleaning, bead blasting and oven cure are > required, not unlike the usual ceramic coats. > I always preferr to do things myself, but if anybody can say that this > stuff is not up to the hype, then I'll consider shipping out the exhaust to > have it done. > I have about a week of work to do where I want the exhaust in place, but > then I'll be away for a week, during which time I can send it out. > Further to this, has anybody ever had their exhaust ceramic coated and > then also wrapped it to provide even more heat reduction? > > Todd Bartrim > C-FSTB > Turbo 13B RV9a > > > > > > --f403043efbf4b7d07e05521b6f3f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Todd,
When I was racing motorcycles the tight fairings= were always a problem. Until Ti came into more common use I, cheap bastard= that I am, always railed against the cost sending a brand new pipe to jet-= hot. But I did it several times and the result was always a pipe that didn&= #39;t corrode. I never had one crack or fail in 10 years of race bikes.
Bill Jepson

On Fri, Jun 16, 2017 at 1:08 PM, Ernest Christley <= flyrotary@lancaironline.net> wrote:
I hav= e it on the outside of the exhaust pipes on my Corvair.=C2=A0 Scratches off= easily.
<= br>
<= div dir=3D"ltr"> On Thursday, June 15, 2017= 5:45 PM, Todd Bartrim <flyrotary@lancaironline.net> wrote:

It appears that Jet-Ho= t is a service business and not a product that I can buy. They may have the= ir own proprietary coatings but it doesn't appear that they sell them a= s a product but only as a service for which I'd have to send my stuff o= ut-of -country to have them apply it.
I can get it done here in Canada = by any number of businesses that use a variety of products including Cerako= te and Ceramakrome. Unfortunately none of them are local and other than VHT= , I haven't been able to find a product in Canada to do it myself.
=C2=A0 So unless somebody speaks up with a glowing recommendation for= VHT, then I'll resign myself to shipping them away to have someone do = it for me.

Todd Bartrim

On Thu, Ju= n 15, 2017 at 12:26 PM, William Jepson <flyrota= ry@lancaironline.net> wrote:
Todd, I haven't us= ed the VHT coating, but I have used the Jet-Hot coatings. They have perform= ed great. They have a high-temp coating that will work for rotaries. The wr= aps tend to cause corrosion since they seem to trap condensation.
Bill = Jepson
<= div class=3D"m_8744711099577254959yiv9956977200h5">

On Thu, Jun 15, 2017 at 12:21 PM, Todd Bartrim <= span dir=3D"ltr"><flyrotary@lancaironline.net> wrot= e:
Has anybody tried using VHT Flameproof, ceramic coating ?= It's rated up to 2000F intermittent.
I've been running m= y engine with exhaust wraps and am very pleased with the reduction of under= cowl temps but am aware of the concerns regarding longevity of the exhaust= .
As I'm very near to returning to the airport I want to addr= ess this and go with a ceramic coating.
I have the ability and fa= cilities to apply a proper ceramic coat, but it is difficult to source the = material at a reasonable cost and timeframe.
=C2=A0 I can ship it= away and have it done for about the same price and less time. But I can al= so purchase VHT locally. While it comes in an aerosol can, it is not paint.= It can be applied as simple as you would a paint, but for best results, pr= oper cleaning, bead blasting and oven cure are required, not unlike the usu= al ceramic coats.
=C2=A0 I always preferr to do things myself, bu= t if anybody can say that this stuff is not up to the hype, then I'll c= onsider shipping out the exhaust to have it done.
=C2=A0 I have a= bout a week of work to do where I want the exhaust in place, but then I'= ;ll be away for a week, during which time I can send it out.
=C2= =A0 =C2=A0Further to this, has anybody ever had their exhaust ceramic coate= d and then also wrapped it to provide even more heat reduction?

Todd Bartrim
=C2=A0C-FSTB
Turbo 13= B RV9a





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