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[rebel-builders] Firewall caulk

https://www.murphybuilders.net/viewtopic.php?f=1&t=9964

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[rebel-builders] Firewall caulk

Posted: Sun Feb 19, 2012 5:29 pm
by Richard Wampach
This is probably the last place to cut corners, but you won't appreciate
that fact until your engine compartment is on fire & you are going
down!!!

I used P/S-700 by PRC-DeSoto International Inc. A PPG industries
company, 2750 114 Street, Suite 400, Grand Prairie, TX 75050.
800-240-2060
The stuff is rated at 2000* F for 5 minuets. This meets FAA
specifications for the use as a firewall sealant. The CS-1900 is
probably equivalent.

Dick Wampach SR-108

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Eric Fogelin
Sent: Thursday, August 13, 2009 8:36 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] Firewell caulk

I used the firewall sealant from Vans: CS 1900. You can order from their
online catalog. Here is the info from Vans:

---

Firewall Sealant
Sealant for Firewall Structures

CS 1900 is a compound for sealing firewall structures. It is elastomeric
at
operating temperatures from minus 65 degrees to plus 400 degrees F and
able to withstand flash temperatures of 2000 degrees F. This product can
be
used as a perimeter firewall seal on existing aircraft or during
construction of
new aircraft. In new aircraft, as the skins are being installed, the
flange
of the
firewall should be coated with a thin layer and the skin riveted on
while
the material is still uncured ("wet").
(Limited shelf life of approximately 4 months from purchase).

---

Eric
Elite Amphib N645E


-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Charlie Eubanks
Sent: Thursday, August 13, 2009 8:23 PM
To: rebel-builders@dcsol.com
Subject: [rebel-builders] Firewell caulk

Hello All
I am getting ready to rivet Fus-10 & 70 to the firewall I was wondering
what

is the best thing (fireproof) to use to caulk the large gaps between the

tabs on the firewall?
Charlie E. 802R




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[rebel-builders] Firewall caulk

Posted: Sun Feb 19, 2012 5:29 pm
by Ken
I flame tested a couple of the latex based fire rated sealants with
similar clames as the CS1900 product and found them totally inadequate
and no better than the non fire rated silicones and RTV products. They
almost immediately turn to powder and fall off and are not in any way
comparable to an itumescent fire barrier IMO.

In addition to the PRC fire barrier below, I would also recommend 3M
Fire Barrier CP25WB+ if you want it to be effective. Reportedly
available at some American Home Depots but not in Canadian Home Depots.
I purchased it at a building supply if memory serves.

Ken



Richard Wampach wrote:
This is probably the last place to cut corners, but you won't appreciate
that fact until your engine compartment is on fire & you are going
down!!!

I used P/S-700 by PRC-DeSoto International Inc. A PPG industries
company, 2750 114 Street, Suite 400, Grand Prairie, TX 75050.
800-240-2060
The stuff is rated at 2000* F for 5 minuets. This meets FAA
specifications for the use as a firewall sealant. The CS-1900 is
probably equivalent.

Dick Wampach SR-108

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Eric Fogelin
Sent: Thursday, August 13, 2009 8:36 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] Firewell caulk

I used the firewall sealant from Vans: CS 1900. You can order from their
online catalog. Here is the info from Vans:

---

Firewall Sealant
Sealant for Firewall Structures

CS 1900 is a compound for sealing firewall structures. It is elastomeric
at
operating temperatures from minus 65 degrees to plus 400 degrees F and
able to withstand flash temperatures of 2000 degrees F. This product can
be
used as a perimeter firewall seal on existing aircraft or during
construction of
new aircraft. In new aircraft, as the skins are being installed, the
flange
of the
firewall should be coated with a thin layer and the skin riveted on
while
the material is still uncured ("wet").
(Limited shelf life of approximately 4 months from purchase).

---

Eric
Elite Amphib N645E


-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Charlie Eubanks
Sent: Thursday, August 13, 2009 8:23 PM
To: rebel-builders@dcsol.com
Subject: [rebel-builders] Firewell caulk

Hello All
I am getting ready to rivet Fus-10 & 70 to the firewall I was wondering
what

is the best thing (fireproof) to use to caulk the large gaps between the

tabs on the firewall?
Charlie E. 802R

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[rebel-builders] Firewall caulk

Posted: Sun Feb 19, 2012 5:29 pm
by Charlie Eubanks
Thanks Ken
I will check it out.
Charlie E. 802R
----- Original Message -----
From: "Ken" <klehman@albedo.net>
To: <rebel-builders@dcsol.com>
Sent: Friday, August 14, 2009 9:29 PM
Subject: Re: [rebel-builders] Firewall caulk

I flame tested a couple of the latex based fire rated sealants with
similar clames as the CS1900 product and found them totally inadequate
and no better than the non fire rated silicones and RTV products. They
almost immediately turn to powder and fall off and are not in any way
comparable to an itumescent fire barrier IMO.

In addition to the PRC fire barrier below, I would also recommend 3M
Fire Barrier CP25WB+ if you want it to be effective. Reportedly
available at some American Home Depots but not in Canadian Home Depots.
I purchased it at a building supply if memory serves.

Ken



Richard Wampach wrote:
This is probably the last place to cut corners, but you won't appreciate
that fact until your engine compartment is on fire & you are going
down!!!

I used P/S-700 by PRC-DeSoto International Inc. A PPG industries
company, 2750 114 Street, Suite 400, Grand Prairie, TX 75050.
800-240-2060
The stuff is rated at 2000* F for 5 minuets. This meets FAA
specifications for the use as a firewall sealant. The CS-1900 is
probably equivalent.

Dick Wampach SR-108

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Eric Fogelin
Sent: Thursday, August 13, 2009 8:36 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] Firewell caulk

I used the firewall sealant from Vans: CS 1900. You can order from their
online catalog. Here is the info from Vans:

---

Firewall Sealant
Sealant for Firewall Structures

CS 1900 is a compound for sealing firewall structures. It is elastomeric
at
operating temperatures from minus 65 degrees to plus 400 degrees F and
able to withstand flash temperatures of 2000 degrees F. This product can
be
used as a perimeter firewall seal on existing aircraft or during
construction of
new aircraft. In new aircraft, as the skins are being installed, the
flange
of the
firewall should be coated with a thin layer and the skin riveted on
while
the material is still uncured ("wet").
(Limited shelf life of approximately 4 months from purchase).

---

Eric
Elite Amphib N645E


-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Charlie Eubanks
Sent: Thursday, August 13, 2009 8:23 PM
To: rebel-builders@dcsol.com
Subject: [rebel-builders] Firewell caulk

Hello All
I am getting ready to rivet Fus-10 & 70 to the firewall I was wondering
what

is the best thing (fireproof) to use to caulk the large gaps between the

tabs on the firewall?
Charlie E. 802R

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