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RTV As a sealant

 
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kearney(at)shaw.ca
Guest
PostPosted: Wed Aug 08, 2007 7:21 pm    Post subject: RTV As a sealant Reply with quote
Hi

As I work through the firewall, I noticed that the plans call for Pro-Seal
to seal the firewall recess as well as around the air vents.

Is there any issue in using RTV 732 as a sealant in this type of
application? Aside from fuel tanks, when would use of pro-seal be essential
versus something like RTV?

Inquiring minds need to know...

Les Kearney
#40643

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planesmith(at)hotmail.com
Guest
PostPosted: Fri Aug 10, 2007 12:49 pm    Post subject: RTV As a sealant Reply with quote
Hi Les,

The plans say Pro-Seal , however the correct material is Firewall Sealant Van's part number MC-CS-1900.
Firewall sealant is good to 2000 degrees fuel tank sealant is not.
Tip for working with Firewall sealant it doesn't have the same consistence as fuel tank sealant. more like a juice blub of foam (weird stuff.)
Anyway put it into a mono-inject or syringe without a needle and "inject it" where you need it.

I can't say much about using RTV other than what a Tech counselor told me
"your building a $100,000+ dollar plane $20 bucks for the right material isn't much in the grand scheme of things."

Have fun,

Vern Smith (#324 rudder pedals)

Quote:
Date: Wed, 8 Aug 2007 21:20:01 -0600
From: kearney(at)shaw.ca
Subject: RTV As a sealant
To: rv10-list(at)matronics.com

--> RV10-List message posted by: Les Kearney <kearney(at)shaw.ca>

Hi

As I work through the firewall, I noticed that the plans call for Pro-Seal
to seal the firewall recess as well as around the air vents.

Is there any issue in using RTV 732 as a sealant in this type of
application? Aside from fuel tanks, when would use of pro-seal be essential
versus something like RTV?

Inquiring minds need to know...

Les Kearney>



Recharge--play some free games. Win cool prizes too! Play It! [quote][b]

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AV8ORJWC



Joined: 13 Jul 2006
Posts: 1149
Location: Aurora, Oregon "Home of VANS"
PostPosted: Fri Aug 10, 2007 1:29 pm    Post subject: RTV As a sealant Reply with quote
Pro-Seal is a brand name of DeSoto – PPG sealant. It comes in over 40 flavors. Several will and do withstand high temperature on our Air Carrier Fleet the Dash 8/200 turboprop, Q400 turboprop and CRJ-700 Turbines. MC-CS-1900 is used for just one specific purpose. RTV has its own applications.

The use of a Mono-inject syringe is quite commonly used when the smaller quantity is less than justifying a Semco pneumatic gun. I have three sizes of guns and still resort to a syringe for really small jobs.

Use of the correct material is always better than speculation. But then each builder has the right and responsibility as the final Manufacturer to pick appropriate products or do whatever moves them. VANS just designed the thing and made a bunch of cool products to throw at it. Silicone based compounds are a real bitch when a paintable surface is desired. ProSeal is great with primer, paints or au naturale.

Knowing your choices and picking wisely is what makes this pastime so much fun.

John C.


From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Vernon Smith
Sent: Friday, August 10, 2007 1:49 PM
To: rv10-list(at)matronics.com
Subject: RE: RTV As a sealant


Hi Les,

The plans say Pro-Seal , however the correct material is Firewall Sealant Van's part number [b]MC-CS-1900.[/b]
Firewall sealant is good to 2000 degrees fuel tank sealant is not.
Tip for working with Firewall sealant it doesn't have the same consistence as fuel tank sealant. more like a juice blub of foam (weird stuff.)
Anyway put it into a mono-inject or syringe without a needle and "inject it" where you need it.

I can't say much about using RTV other than what a Tech counselor told me
"your building a $100,000+ dollar plane $20 bucks for the right material isn't much in the grand scheme of things."

Have fun,

Vern Smith (#324 rudder pedals)

> Date: Wed, 8 Aug 2007 21:20:01 -0600
> From: kearney(at)shaw.ca
> Subject: RTV As a sealant
> To: rv10-list(at)matronics.com
>
> --> RV10-List message posted by: Les Kearney <kearney(at)shaw.ca>
>
> Hi
>
> As I work through the firewall, I noticed that the plans call for Pro-Seal
> to seal the firewall recess as well as around the air vents.
>
> Is there any issue in using RTV 732 as a sealant in this type of
> application? Aside from fuel tanks, when would use of pro-seal be essential
> versus something like RTV?
>
> Inquiring minds need to know...
>
> Les Kearney
>
>
>



Recharge--play some free games. Win cool prizes too! Play It! [quote] [b]

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kearney(at)shaw.ca
Guest
PostPosted: Fri Aug 10, 2007 10:53 pm    Post subject: RTV As a sealant Reply with quote
John / Vernon

Thanks for the advice. I do want to se the right material and thought perhaps RTV would be an acceptable substitute. My A&P (AME in Canada) has used it in my engine compartment so I thought it might be an easier material to use. It is curious that the plans specify proseal while there is a vans firewall sealer available for just this purpose.

Thanks again

Les


From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of John W. Cox
Sent: August-10-07 3:28 PM
To: rv10-list(at)matronics.com
Subject: RE: RTV As a sealant


Pro-Seal is a brand name of DeSoto – PPG sealant. It comes in over 40 flavors. Several will and do withstand high temperature on our Air Carrier Fleet the Dash 8/200 turboprop, Q400 turboprop and CRJ-700 Turbines. MC-CS-1900 is used for just one specific purpose. RTV has its own applications.

The use of a Mono-inject syringe is quite commonly used when the smaller quantity is less than justifying a Semco pneumatic gun. I have three sizes of guns and still resort to a syringe for really small jobs.

Use of the correct material is always better than speculation. But then each builder has the right and responsibility as the final Manufacturer to pick appropriate products or do whatever moves them. VANS just designed the thing and made a bunch of cool products to throw at it. Silicone based compounds are a real bitch when a paintable surface is desired. ProSeal is great with primer, paints or au naturale.

Knowing your choices and picking wisely is what makes this pastime so much fun.

John C.



From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Vernon Smith
Sent: Friday, August 10, 2007 1:49 PM
To: rv10-list(at)matronics.com
Subject: RE: RTV As a sealant


Hi Les,

The plans say Pro-Seal , however the correct material is Firewall Sealant Van's part number [b]MC-CS-1900.[/b]
Firewall sealant is good to 2000 degrees fuel tank sealant is not.
Tip for working with Firewall sealant it doesn't have the same consistence as fuel tank sealant. more like a juice blub of foam (weird stuff.)
Anyway put it into a mono-inject or syringe without a needle and "inject it" where you need it.

I can't say much about using RTV other than what a Tech counselor told me
"your building a $100,000+ dollar plane $20 bucks for the right material isn't much in the grand scheme of things."

Have fun,

Vern Smith (#324 rudder pedals)

> Date: Wed, 8 Aug 2007 21:20:01 -0600
> From: kearney(at)shaw.ca
> Subject: RTV As a sealant
> To: rv10-list(at)matronics.com
>
> --> RV10-List message posted by: Les Kearney <kearney(at)shaw.ca>
>
> Hi
>
> As I work through the firewall, I noticed that the plans call for Pro-Seal
> to seal the firewall recess as well as around the air vents.
>
> Is there any issue in using RTV 732 as a sealant in this type of
> application? Aside from fuel tanks, when would use of pro-seal be essential
> versus something like RTV?
>
> Inquiring minds need to know...
>
> Les Kearney
>
>
>


Recharge--play some free games. Win cool prizes too! Play It!
Quote:
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apilot2(at)gmail.com
Guest
PostPosted: Sat Aug 11, 2007 5:33 am    Post subject: RTV As a sealant Reply with quote
HI Les,
As John explained, the term ProSeal is generic like RTV in that there are many versions with totally different capabilities. So the instructions are correct.
They call for ProSeal of the high temperature variety for the fire wall, if I understand correctly.
Kelly

On 8/10/07, Les Kearney <kearney(at)shaw.ca (kearney(at)shaw.ca)> wrote:
Quote:

John / Vernon

Thanks for the advice. I do want to se the right material and thought perhaps RTV would be an acceptable substitute. My A&P (AME in Canada) has used it in my engine compartment so I thought it might be an easier material to use. It is curious that the plans specify proseal while there is a vans firewall sealer available for just this purpose.

Thanks again

Les


From: owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) [mailto:owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)] On Behalf Of John W. Cox
Sent: August-10-07 3:28 PM
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Subject: RE: RTV As a sealant



Pro-Seal is a brand name of DeSoto – PPG sealant. It comes in over 40 flavors. Several will and do withstand high temperature on our Air Carrier Fleet the Dash 8/200 turboprop, Q400 turboprop and CRJ-700 Turbines. MC-CS-1900 is used for just one specific purpose. RTV has its own applications.

The use of a Mono-inject syringe is quite commonly used when the smaller quantity is less than justifying a Semco pneumatic gun. I have three sizes of guns and still resort to a syringe for really small jobs.

Use of the correct material is always better than speculation. But then each builder has the right and responsibility as the final Manufacturer to pick appropriate products or do whatever moves them. VANS just designed the thing and made a bunch of cool products to throw at it. Silicone based compounds are a real bitch when a paintable surface is desired. ProSeal is great with primer, paints or au naturale.

Knowing your choices and picking wisely is what makes this pastime so much fun.

John C.



From: owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) [mailto:owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)] On Behalf Of Vernon Smith
Sent: Friday, August 10, 2007 1:49 PM
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Subject: RE: RTV As a sealant


Hi Les,

The plans say Pro-Seal , however the correct material is Firewall Sealant Van's part number [b]MC-CS-1900.[/b]
Firewall sealant is good to 2000 degrees fuel tank sealant is not.
Tip for working with Firewall sealant it doesn't have the same consistence as fuel tank sealant. more like a juice blub of foam (weird stuff.)
Anyway put it into a mono-inject or syringe without a needle and "inject it" where you need it.

I can't say much about using RTV other than what a Tech counselor told me
"your building a $100,000+ dollar plane $20 bucks for the right material isn't much in the grand scheme of things."

Have fun,

Vern Smith (#324 rudder pedals)

> Date: Wed, 8 Aug 2007 21:20:01 -0600
> From: kearney(at)shaw.ca (kearney(at)shaw.ca)
> Subject: RTV As a sealant
> To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
>
> --> RV10-List message posted by: Les Kearney <kearney(at)shaw.ca (kearney(at)shaw.ca)>
>
> Hi
>
> As I work through the firewall, I noticed that the plans call for Pro-Seal
> to seal the firewall recess as well as around the air vents.
>
> Is there any issue in using RTV 732 as a sealant in this type of
> application? Aside from fuel tanks, when would use of pro-seal be essential
> versus something like RTV?
>
> Inquiring minds need to know...
>
> Les Kearney
>
>
>


Recharge--play some free games. Win cool prizes too! Play It!
Quote:



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