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ceramic fiber blanket  RSS feed

 
garden master
Posts: 1362
Location: latitude 47 N.W. montana zone 6A
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Hi All;

It has come to my attention that ceramic fiber blankets are not all created equal. 
My interest was first aroused by a poster who had nothing good to say about it .... he hated the stuff!  Said it was as bad or worse than any fiberglass insulation he had ever worked with !
My suspicions were confirmed  when Peter van den Berg said there was an inferior product that was hazardous to work with. Only "real superwool " was safe to work with.
And again when I was informed that in Europe only a licenced professional is allowed to buy the hazardous product ! But anyone can buy superwool.
This was all new information to me. I didn't like hearing it, but was glad to learn about the difference, before my impending purchase of CF blanket... (I had the hazardous product on my watch list and was ready to order ) !

Apparently the safer product to buy is "Morgan Super wool plus ". 
This product is known as (non-RCF) non refractory ceramic fiber.  Safe to handle and carries no health warning label.
Although I have not located any other manufacturers of a similar product, there may be other manufacturers I am not aware of.  
Cost is a least a third more than "Chinese" ceramic blanket...

Can you still use the other ? Yes, but  a respirator &  long sleeves with very limited exposure , that should be the least of your precautions or even better a tyvec  suit could be used.  
 
gardener
Posts: 2786
Location: Southern alps, on the French side of the french /italian border 5000ft high Southern alpine climate.
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Posts: 36
Location: Wellington, New Zealand
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https://www.ncbi.nlm.nih.gov/m/pubmed/22642290/

No excess carcinogenicity observed over 15,000 patient years yet.
 
pollinator
Posts: 95
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I've used 'Insulfrax' in various thicknesses, for back up insulation behind firebricks and as a gasket material. It copes with extreme heat and does it's job very well.

A data sheet came with the products and provided sensible precautions are taken, there appears to be no serious risk to health.
 
Posts: 51
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Interesting.

I bought this -> https://www.amazon.com/gp/product/B014V9J4PM/ref=oh_aui_search_detailpage?ie=UTF8&psc=1


I have been testing this and I have found that I can make all different types of shapes with this when mixed with sodium silicate, then it turns rock hard.

I think what I am going to do is use cardboard to make a form then use this on the outside of the form to make a Peter Van  batch box, then apply the sodium silicate so it turns rock hard.

I am torn if I am going to make a Tlud design, or a standard rocket stove riser,   

Always more to learn in building these.
 
John Harrison
pollinator
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If you add the sodium silicate to harden the blanket, won't it remove some of the insulating properties of the material?
 
It wasn't my idea to go to some crazy nightclub in the middle of nowhere. I just wanted to stay home and cuddle with this tiny ad:
Food Forest Card Game - Game Forum
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