450 degree insulation?

[Malak]

What would be a material that can take nearly 500 F and be used in the walls of a custom oven
for insulation?

This is for an industrial application - not residential.

thanks

 

[N/A N/A]

Not sure what they actually use for that application. But Nomex will withstand temps above 1000 degrees for a rather short period of time. The same stuff they make firefighter turn out gear and wild land firefighting overalls from. The fabric has been around a while and you should not have any problems buying some if you look in the right place. There are some newer fabrics like PBI (cant remember what it stands for) out that is a little more expensive that is a little better than Nomex. I am sure if these fabrics are applied in the correct manor, they could be used for the application you speak of.

 

[Redox]

Kaowool is generally a good general purpose insulation for high temperature use. It looks like fiberglass and comes as boards, blankets and loose fill. It's good to at least 2000F, IIRC.

Chris

 

[WES999]

Mcmaster carr has high temp insulation.
http://www.mcmaster.com/
I purchased some insulation for wood stove there.

 

[Adios Pantalones]

I've used a lot of kaowool in my kiln. You can get it that withstands 2000F, 2300F, or 2600F IIRC. It may be overkill for 500F.

Rockwool (Roxul brand) accostical fire batts come apart easily, but are dirt cheap compared to kaowool- withstands something like 1900F.

There are a number of other boards and blankets that will take 500F easily. I would contact Cutter Atlantic Refractories in Woburn, MA and tell them what you need- they will hook you up. Great folks there.

 

[rfalk]

mineral wool or perlite (loose fill) will work. Both are mineral products and will withstand 2000 degrees.

 

[Adios Pantalones]

mineral wool or perlite (loose fill) will work. Both are mineral products and will withstand 2000 degrees.

You can also get perlite pressed into boards.