- last price $379.90
2300°F Ceramic wool blanket is ideal for pizza ovens, fireplaces, chimney repairs, cook stoves, heat-treating ovens, kilns, and most boilers, furnaces, and many other backup insulation projects. 2200° is the maximum constant temperature. '
2600°F Blanket:For high-heat fireside exposures in forges, foundries, and some glass ovens, a higher-temperature-rated 2600°F wool blanket is recommended.
Available in 1" Thick 2600°F Ceramic Blanket and 2" Thick 2600°F Wool Blanket, we also provide this premium temperature wool pre-cut, by the linear foot.
Refractories cost much more to manufacture to higher temperature specifications, and wool blankets with different ratings can appear identical.
When installed in a firebox, ceramic wool is best coated or sealed to prevent airborne ceramic fibre fragments from being inhaled, where they can permanently remain in a person's lungs, much like asbestos.
Using wool with a high enough temperature rating is key to mitigating fibre breakdown. Its only downside is a higher production cost, but with it comes the peace of mind that comes with greater value.
As a principle, when ceramic wool is used to line the fireside of a firebox, it is rigidized and coated with an appropriate refractory material. Once coated and sealed, ceramic wool is considered protected from the health concerns of fibre fragment inhalation.
Principles of protecting raw wool from firebox jet streams and temperatures can be mitigated in many ways, from firebox bricks (either IFBs or Dense Firebricks), with refractory boards, other castables and coatings...
Ceramic Blanket Considerations for Firebox Installations:
1) A wool blanket can be permanently held in place in defiance of gravity with 304 SS weldable wool retention clips. To aid in installation, temporary spray adhesives can be used to hold the wool blanket in position until it is securely fastened.
2) The blanket can be strengthened and stiffened with silicaRigidizer Spray, making coating it easier, adding durability and preventing compression.
3) Coat with a 3/8"- 1/2'' (or thicker) layer of insulating refractory cement for added insulation & maximum durability. ** KOL 30 Li (G)+, Greenlite 45L (online),
4) Dragon Skin and/or Alien Skin provide options when thinner coatings are needed.
5) Adding a thin coating of ITC-100 HT as the final 'interior layer' will optimize heat reflection and efficiency. A little goes a long way on a firm surface, and it can pay for itself in propane savings in a few days.
Click here for Inswool SDS & Inswool Technical Data Sheet.
Limited rolls of 2" 2200°F Bioabsorbable Refractory Wool Insulation are still available (some 1.5" thicknesses and partial and split rolls of each may also be available upon request).
