Gemcowool vacuum-formed products are lightweight ceramic and mineral fiber shapes bonded with organic and inorganic binders. The organic binders provide the strength necessary in shipping, handling and assembly process. During the first few uses, the organic binders burn-off releasing oxides of carbon and water as products of the combustion. The high temperature inorganic binders keep the fiber shape intact during the life of the products.

However, there are instances where the burn-off from organic binders may cause contamination to the products or process, or the odor associated with burn-off may be objectionable. Gemcowool No-Smoke formulations were developed for these applications where organic binder in the products can not be tolerated.

Low thermal conductivity, low heat storage, and excellent insulating properties make Gemcolite shapes important conservers of energy. Superior resistance to thermal shock permits quick heat-ups and cool-downs without cracking or spalling. Non-wetting and high refractory characteristics are distinct advantages.

Gaskets 
Flue Liners 
Range burner insulation 
Burner Nozzle 
Sleeves
Boards for furnace and kiln insulation and linings
Easily molded insulating wet blanket
Combustion chambers for oil or gas fired boilers
     and water heaters
Secondary combustion chambers for solid fuel heaters

Gemcolite vacuum-formed shapes can be surface-treated on one or both sides to form an inorganic protective shell for extra strength. They can also be impregnated, so that the entire shape is almost rock-hard throughout. This makes the shapes the strongest of all vacuum-formed products, providing them with considerable resistance to mechanical abuse. All materials utilized for impregnation and surface treatment are inorganic and refractory.

Shapes can be cemented together in a strong bond to form larger or more complex configurations. This operation can be done in Refractory Specialties plant or at the users facility. Appropriate cement is available upon request.

Gemcolite shapes resist oxidation, reduction, and attack from most corrosives(except hydrofluoric acid, phosphoric acid, and heavy concentrations of alkalis). Water or oil will not damage Gemcolite shapes. Upon drying, shapes regain their superior physical properties.

Sleeves, insulating boards and wet blankets, and furnace combustion chambers are among the many standard Gemcolite vacuum-formed shapes. Special shapes, specifications, are also available.

Each Gemcolite vacuum-formed special shape requires a unique mold design. Molds are made individually for our plant. Most Gemcolite special shapes are formed on a male mold. They are made smooth on the inside surface through contact with the mold's screen, while the outside is rough and bark-like. However, where desirable, these surface textures can be reversed by utilizing a more elaborate female mold.

Technical support for refractory and heat transfer solutions is available free of charge upon request. Custom formulations in organic and inorganic binder compositions is available for use temperatures up to 3000°F.

Call 330-938-210, or use our online Contact Form, for more information on the insulating shapes you need or to intiate a quotation.