Firewall insulation

Karl.Kruger · #1 10-12-2010, 10:55 AM

One of my RV friends suggested that before I get the firewall totally installed and while I still have access, to go ahead and put sound-deadening material on, his suggestion was B-quiet and it looks like the stuff.

http://www.b-quiet.com/ultimate.html

Mike S · #2 10-12-2010, 11:06 AM

Karl, welcome to the good ship VAF.

There is a lot of information on firewall insulation on the forum already, one of the members has done a lot of research and testing on various materials.

Search for "firewall insulation" using the search function, pretty much anything by Dan H will be good info for you to look at.

Good luck, and again, welcome.

hydroguy2 · #3 10-12-2010, 12:50 PM

Karl, give me a call. I got a source for a enough Firewall insulation(FAA approved) for 5 planes. Might even get it delivered for free, as I have to bring the roll back to Helena one of these days.

Brian
980-1193cell

DanH · #4 10-12-2010, 02:00 PM

Quote:

Originally Posted by hydroguy2

Karl, give me a call. I got a source for a enough Firewall insulation(FAA approved) for 5 planes.

Brian, which FAA standard does it meet?

JonJay · #5 10-12-2010, 02:31 PM

DanH did a bunch of research and testing . Before I would venture into what sounds like a very simple process, I would review his hard work.

hydroguy2 · #6 10-12-2010, 08:00 PM

Quote:

Originally Posted by DanH

Brian, which FAA standard does it meet?

Dan, below is info I got

Flammability Requirements
All materials meet FAR 25:853 (a), Appendix F, Part 1 (a) (1) (ii) for flammability. Certificate provided with each kit or bulk order.

I don't know if this passes your tests, but for me it's good enough.

BSwayze · #7 10-12-2010, 08:20 PM

Brian,
Did you put your firewall insulation on the forward side of the firewall, or the aft side?

I'm potentially interested in some of your extra material, too, before you take it back.

hydroguy2 · #8 10-12-2010, 08:41 PM

aft of the Stainless.

I don't think it would work well in the engine compartment.

It's not my material, a guy redoing his cub bought to much and is selling it to me. I'll probably end up paying him for what I use at the same rate he bought it for. I'll save shipping and waste $$'s

DanH · #9 10-12-2010, 09:55 PM

Quote:

Originally Posted by hydroguy2

All materials meet FAR 25:853 (a), Appendix F, Part 1 (a) (1) (ii) for flammability.

That's what I thought. You're offering airliner cabin wall insulation, not firewall insulation. It is fine stuff for insulating wall panels well aft of the firewall, but totally inappropriate for contact with the firewall itself.

hydroguy2 · #10 10-12-2010, 10:32 PM

All I'm going by is the advertisement which says Firewall certified and the stated info that some certified planes are using it in the same location.

We all have levels of risk we are willing to accept. If my firewall gets hot enough to cause this mat to be a problem I most likely already have a huge issues to deal with. My aluminum heatbox, pass thru's, rubber & plastic grommets and wiring will already be trying to kill me. YMMV

It's not my material to sell anyway, so never mind Karl....you can still call me if you want to talk RV's or something.