X-Virus-Scanned: clean according to Sophos on Logan.com From: "Todd Bartrim" Received: from mail-qk0-f181.google.com ([209.85.220.181] verified) by logan.com (CommuniGate Pro SMTP 6.2c3) with ESMTPS id 9832513 for flyrotary@lancaironline.net; Sat, 17 Jun 2017 04:16:02 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.220.181; envelope-from=bartrim@gmail.com Received: by mail-qk0-f181.google.com with SMTP id d14so6237120qkb.1 for ; Sat, 17 Jun 2017 01:16:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=xaP/UZwrIQx5HCJJ1sZ9bQUMU8GDpOqVMMoLBe1b6RM=; b=KqU4wo7VanCB0rkL/qDQy+bqaRaO/HKMBsSs82N1cJijw3lA92RrWfPeviiO/yKguC cFba/lYnbgB1T7rwH+OjyHBDd4S7daJliFAe3vrU+/qHQE+xAW7kX5IGgoHh9HSZnDwh BjWiEcCRl6DCqMwPTV29ympVJbuw5QKMzeiA6b9v218yb8m8SOu4ktM4xIQH+b8lqD++ jbeXA4jyUZIc2W+lpYOQu5wF6Q8yJd9OSjN/S7V/YaLQ7dk7c2GuBeP1n4euA8l55Iuc YipejV8gS+PrQpv6N9gSvmSbDLrbBA4fNnV8GaOMxLwYsFrWgF+A922Dx5J6sm66nbVW h/uQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=xaP/UZwrIQx5HCJJ1sZ9bQUMU8GDpOqVMMoLBe1b6RM=; b=DJq4gOyTk8BSgdhyE5IU//2FBNOX/mWcrI7j60i8gHMCmmrjwl8rHt+uoX5M4phj5J +TIU1m1SpATw156HLelonjN9GVgBRljN9W10bjhT48nEAAT/yRW+yeMrp2qfJPO/ZZGx nh2uoDCHV9B8ilzHeVekthfqt7L3TtL1H3pN4ZOupBDI3ZoKyXNYOY7Nd6LVncW9narl IbMqS/atELC3ovE3MQR7rHnBpW4XoiKP7Cnxh1wdH/rVTqVwKtyAkJvXE5R8BY14qPoO pCLt3VfwFVHXGQUcaCwDvZEOKcpQPohohR9FsERsUCvAcIR16xKidHNZZeF28T8ffky5 zy5Q== X-Gm-Message-State: AKS2vOzlxPZbBoFQagGzNE88hqV1F1YqSkUbc05QK6b8CgKNsCpAc9lG tisZg8KsGMNwbVu9K6Za7tVxU2Pu7g== X-Received: by 10.55.33.80 with SMTP id h77mr7052375qkh.86.1497687343821; Sat, 17 Jun 2017 01:15:43 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Sat, 17 Jun 2017 08:15:33 +0000 Message-ID: Subject: Re: [FlyRotary] Re: ceramic coating To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="001a1144c1961cf7870552238258" --001a1144c1961cf7870552238258 Content-Type: text/plain; charset="UTF-8" I had found something about that VHT dramatically reducing underhood temps, but after searching to find where I saw that, I realized it was a teenager in a YouTube video. So much for that. Next week after I do some more engine runs. I'll remove the exhaust and ship it out, as I'll be away on a climbing trip with my son. On Fri, Jun 16, 2017, 13:08 Ernest Christley, 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 > > > > > > --001a1144c1961cf7870552238258 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

I had found something about that VHT dramatically reducing u= nderhood temps, but after searching to find where I saw that, I realized it= was a teenager in a YouTube video. So much for that.
=C2=A0 Next week after I do some more engine runs. I'll remove the exha= ust and ship it out, as I'll be away on a climbing trip with my son.

On Fri, Jun 16, 2017, 13:08= Ernest Christley, <flyro= tary@lancaironline.net> wrote:
I have it o= n the outside of the exhaust pipes on my Corvair.=C2=A0 Scratches off easil= y.
=


<= /div>
On Thursday, June 15, 2017 5:45 P= M, 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 ow= n proprietary coatings but it doesn't appear that they sell them as a p= roduct 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 an= y number of businesses that use a variety of products including Cerakote an= d Ceramakrome. Unfortunately none of them are local and other than VHT, I h= aven'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 fo= r 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_-831768650625459263yiv9956977200h5">

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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