![]() |
FIREPROOF SEALANT
HOWDY TO ALL,
I can't remember where we purchased our fireproof sealant. I have some areas that need attention on the firewall. |
Quote:
|
There is a 3m Fire sealant at Home Depot also, the 2000 series.
|
Quote:
|
Yeah...
Yeah, I had to look twice at the Home Depot stuff before I realized that it was LATEX.
Ordered the correct stuff on amazon... |
Can 3M FIRE BARRIER 2000+ be substituted everywhere one would use Red RTV?
Lynn |
Quote:
I use 3M FB2000 on firewall edges and penetrations, Permatrex Ultra Black (aka Loctite 598) almost everywhere else. Not as corrosive, highly oil-resistant, and lots better looking in an engine compartment. |
I was wrong about the 2000 series but it is a 3M polyurethane orange foam fb. Not sure about its performance.
|
Quote:
Thanks, Lynn |
You have to be careful choosing a fire barrier caulk. On my Lancair I used the stuff that came with my Firewall 2000 Ceramic Blanket kit - 3M, I think. Over the years, it ate into my engine mounts.
|
Quote:
|
Quote:
![]() I wire brushed it down to bare metal, determined that the damage was superficial only, primed it with red oxide primer, and top coated it. |
Hmmm. I suspect latex sealant, or one of the acid cure silicones, but I'll have my cowl off today for a condition inspection in progress. I'll take a hard look at the FireBarrier 2000, now going on 9 years since installation, in a humid deep south climate.
|
Quote:
Please report back if you see any sign of issues, I just used the same Fire Barrier 2000 to seal/adhere fiberfrax/stainless steel sheet to my firewall. It will not touch the engine mount but still would like to know if it has any corrosive affect on metal. |
Hey Meherad,
My heart skipped a beat when I too read these last few posts. I checked the specs on Fire Barrier 2000+ and it is indeed a neutral curing silicone, so non corrosive. Specs, and statement that it is "neutral-cure" may be found below: https://www.3m.com/3M/en_US/company-...3123941&rt=rud The only negatives I could find with respect to corrosion were during the curing process. In one of the data sheets available the following statement is made: "Note: In confined cure conditions, there may be discoloration of brass, copper or other sensitive metals." http://multimedia.3m.com/mws/media/1...alant-2000.pdf Apart from that the only other corrosion info on the product I could find was an old thread DanH contributed to on VAF: http://www.vansairforce.com/communit...t=35016&page=2 Hope this helps you sleep better. Tom. |
Previously I said
Quote:
|
Thank you Tom and Dan for confirming this.
|
| All times are GMT -6. The time now is 08:13 AM. |