Ceramic Blanket

[brickie in oz]

Re: Ceramic Blanket

I have some extra ceramic fiber blanket I bought from Forno Bravo and I would like to use it to insulate a door. I have a concern of it being touched by the welder. Will it burn or catch fire by an open flame?

It may melt in small places where the arc touches the metal, may but I doubt it.
From memory ceramic blanket is rated at 1500c, welding arcs are 3000c that is at the weld puddle, mm's away it will cool rapidly.

[mrchipster]

Re: Ceramic Blanket

My riveted door works very well. and you could use blanket no problem.

http://www.fornobravo.com/forum/f8/c...ota-16394.html

Chip

[Johnny the oven man]

Re: Ceramic Blanket

It may melt in small places where the arc touches the metal, may but I doubt it.
From memory ceramic blanket is rated at 1500c, welding arcs are 3000c that is at the weld puddle, mm's away it will cool rapidly.

1260C is the working limit, but melts at 1700C Alan. Shouldnt have many dramas.

[brickie in oz]

Re: Ceramic Blanket

but melts at 1700C Alan.

I knew that as soon as I posted it, my gas forge got to 1550c I think the other day and the blanket glowed like buggery but was still there....

[MikeMelga]

I have one small question:

If you use the ceramic fibre blanket in a WFO wouldn't some particles be in touch with food should the WFO develop some cracks with time? (which they eventually do)

[david s]

The new generation ceramic fibre is exonerated as a class 2 carcinogen unlike the older stuff. That means some lab rats got tumours but none reported in humans. The new fibre is biosoluble so doesn’t cause problems if inhaled. There has never been a concern about ingestion only inhalation. Check your MSDS in the toxicity section on the blanket you have or are buying to see if it is biosoluble.

[Ganlet]

The new generation ceramic fibre is exonerated as a class 2 carcinogen unlike the older stuff. That means some lab rats got tumours but none reported in humans. The new fibre is biosoluble so doesn’t cause problems if inhaled. There has never been a concern about ingestion only inhalation. Check your MSDS in the toxicity section on the blanket you have or are buying to see if it is biosoluble.

I'm just into these thoughts before ordering a blanket. New with construction and refractory material in general. Was always wondering why there are so many product and safety document attached for all the typical products relevant for an oven build, but now I realize there are quite some hazards to look out for in the construction area and especially within refractory.

Whats the latest with regard to blankets for a worried soul? Just try to look for a product that is confidently specified as biosoluble?

FB, regular type insulation?

[Gulf]

I can't speak for Forno Bravo. But, using the proper ppe should be used for all aspects of an oven build. That includes the installation of insulation, the cutting of brick, the use of lime, the use of portland, the use of clay and even the use of sand. The below MSDS is for play sand. Once the materials are set into place, no worries. Just my opinion.

Play Sand MSDS

[Ganlet]

I can't speak for Forno Bravo. But, using the proper ppe should be used for all aspects of an oven build. That includes the installation of insulation, the cutting of brick, the use of lime, the use of portland, the use of clay and even the use of sand. The below MSDS is for play sand. Once the materials are set into place, no worries. Just my opinion.

Play Sand MSDS

Well said, most certainly planning to do so.

[david s]

I'm just into these thoughts before ordering a blanket. New with construction and refractory material in general. Was always wondering why there are so many product and safety document attached for all the typical products relevant for an oven build, but now I realize there are quite some hazards to look out for in the construction area and especially within refractory.

Whats the latest with regard to blankets for a worried soul? Just try to look for a product that is confidently specified as biosoluble?

FB, regular type insulation?

I don't think there's much of the older generation blanket left these days. Check the MSDS toxicity section. Attached is the product I use.