[TheForge] Mineral Wool & satinite vs IT?C-100, etc

[Kathy]

For use on ceramic blanket, dab Rigidizer (colloidal silica) on with a cheap
paint brush, allowing it to sink in to a depth of between 1/4” and 1/2”, in
order to create a semi rigid under layer—not given to shrinking due to heat
exposure—on the inner face (hot face side) of a ceramic blanket; after heat
curing, paint a coating of Plistex (ordered from Larry Zoeller) in order to
create a very tough finish layer; after heat curing the Plistex, paint on a
final coating of water separated ITC-100 or a combination of water separated
(colloidal) #200 mesh zirconium and a dab of water separated clay (as a binder).
The above combination gives the toughest, and most infrared reflective finish
presently possible for hobby use ceramic refractory blanket insulation.

 

However, it is silly to use ceramic blanket unless the forge is either going to
be transported a lot, or needs to cool down at maximum speed (twenty minuets to
less than 140° F from yellow heat); as in the case of a home hobbyist worried
over safety issues and with limited time (husbands and fathers). Otherwise, an
extra five minuets heat up period (but up to four hours cool down time) will
allow the use of an insulating refractory like Kastolite #3000. A good quality
insulating refractory will hold up far better than the toughest and most
carefully prepared ceramic blanket insulation on shop forges (still
transportable, but heavier).

Mikey    

 

-----Original Message-----
From: theforge-bounces at mailman.qth.net [mailto:theforge-bounces at mailman.qth.net]
On Behalf Of Ron Childers
Sent: Thursday, May 24, 2007 7:33 AM
To: 'Sponsored by ABANA'
Subject: RE: [TheForge] Mineral Wool & satinite vs IT?C-100, etc

 

Kaowool seems to work ok; I guess Plistex or ITC-100 could be applied over

satinite if it would be of appreciable benefit...?

 

Ron C

 

-----Original Message-----

From: theforge-bounces at mailman.qth.net

[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Steven Smith

Sent: Thursday, May 24, 2007 10:10 AM

To: Sponsored by ABANA

Subject: Re: [TheForge] Mineral Wool

 

Both Kaowool and Durablanket are brand names. Within each brand name are 

different products designed to work at different temperatures. You will 

be unhappy if you get an inexpensive, low temperature wool. I use 

Durablanket "S".

 

I agree with Bruce's recommendation of 2" thick, 8 pounds per cubic foot 

density. The denser stuff lasts better against mechanical damage. You 

also should put a seal coat on the inside of your forge. You make up a 

sort of mud and paint it on. I use Satanite. More expensive options that 

reflect IR and improve the efficiency of your forge include ITC100.

 

I do wish someone would measure before and after with ITC100. So far, 

all I've heard is anecdotal "it was hotter".

 

Steve

 

Jerry Smith wrote:

> Folks,

> 

> I need a number or a name or something for model or

> brand of mineral wool, I need to buy some mineral wool

> for rebuilding my forge and to build a new furnace for

> melting glass.

> 

> I am using Frosty's design for the burner, it works

> great for me.

> 

> 

> Thanks,

> 

> Jerry

> 

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