This is for all builders, not necessarily just the original poster. One
word of caution on all of this wonderful heat shield informationit's
not weightless. I took about 7 pounds of heat shielding out of N891JF's
cowling (the KR2). The total cowling weight started out at 21 pounds
(compared
Thanks everyone! Several good ideas and products are in transit now to assess
and apply.
I appreciate the help.
John Bouyea
N5391M/ KR2
OR81/ Hillsboro, OR
2015 KR@MMV Gathering CoHost
Subject: Re: KR> Heat shielding the cowl
I used the fibrefrax and stainless foil (.002")to create heat
John,
I used the fibrefrax and stainless foil (.002")to create heat shields on the
cowling. You can get the foil in 12" or 24" wide rolls. I sealed the perimeter
with red rtv. So far so good.
Roger Baalman
OK
> On July 24, 2018 at 12:34 AM John Bouyea via KRnet
> wrote:
>
>
> I have some
I wrapped my entire exhaust system in fiberglass cloth, saturating it with
silicone instead of epoxy. This has worked well for many years to lessen
the heat in the lower cowl. Ordinary household silicone can take a lot of
heat. Use the high temp stuff if you like.
On Jul 24, 2018 5:56 AM, "Teate,
http://www.aircraftspruce.com/catalog/eppages/heatbarriers.php?clickkey=7730
I have used this material and it works very well. The aluminized surface
reflects the vast majority of heat and the fiberglass backing will insulate the
surface from the rest. The adhesive will not stick to a lot of thi
Any recommendations on heat shielding the area?
John Bouyea
+
http://www.aircraftspruce.com/catalog/eppages/heatbarriers.php?clickkey=7730
Larry Flesner
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On 7/23/2018 11:34 PM, John Bouyea via KRnet wrote:
I have some exhaust parts a little too close to the cowl. All I can think up
with is Fibrefrax but it absorbs moisture if not covered with something.
Any recommendations on heat shielding the area?
John Bouyea
++
The guys that fly model jet turbines have the same problem and use a heat
shielding cloth, check Bob Violet models for supply. That stuff worked well on
my RV8 when I installed a four into one exhaust.
Bill Zorc
N2046F
N7040E
Sent from my iPhone
> On Jul 24, 2018, at 12:34 AM, John Bouyea via
I have some exhaust parts a little too close to the cowl. All I can think up
with is Fibrefrax but it absorbs moisture if not covered with something.
Any recommendations on heat shielding the area?
John Bouyea
N5391M/ KR2
OR81/ Hillsboro, OR
2015 KR@MMV Gathering CoHost
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