FineFlex BIO can be used for refectory insulation as well as furnaces, kilns, gas sealing, and other high-temperature, industrial applications.
FineFlex BIO is manufactured by forming silica, magnesia and calcia-based alkaline earth silicate (AES) wool into a cotton-like material. It’s amazingly flexible and resistant to thermal shock.
These biosoluble fibres offer better safety and are excellent for thermal resistance. The FineFlex products are developed with these materials to offer a more environmentally conscious insulation material and product.


FineFlex is an excellent insulation product for passive fire, and refectory, along with applications. These include:
FineFlex products have excellent flexibility, making them an amazing insulation choice in areas that are difficult to insulate.
This lightweight material and its low thermal conductivity make for excellent thermal insulation effectiveness.
Use FineFlex as an expansion joint filling material in ceilings, walls, floors, and in a large variety of kilns.
FineFlex is created by forming environmentally-conscious materials like silica, recycled PET, magnesia and calcia-based alkaline earth silicate (AES).
Discover which product is best for your product and get the finer details you need to make your choice.
It’s ideal as a lining material for industrial furnaces and uses related to iron and steel production. It’s also used as a veneering material under certain conditions.
TOMBO No. 5655
Board is a standard high-temperature insulating material, ideal as a backup material for insulating the ceilings and walls of kilns. It’s also commonly used as a gas sealing material.
TOMBO No. 5625
Similar to Board, this form of FineFlex is often used to insulate walls and ceilings of furnaces and kilns. It’s also used as material for expansion joints of various types of kilns.
TOMBO No. 5605
Cast is highly versatile: you’ll find it in ceiling and side walls of furnaces, external kiln wallS, as well as in burner and roller tiles. It’s also commonly used to repair existing fireproof materials.
TOMBO No. 5675
Mold is a standard high-temperature insulating material, commonly used as internal insulation for compact electric furnaces, and even in aluminium tap holes and stopper covers.
TOMBO No. 5645
This FineFlex form is used in heating zone separators and curtains for furnaces, as well as combustion surfaces of infrared heating zones, and as a cushioning material for other high temperature parts. You’ll also find it useful as a joint filling material for the interior of kilns.
TOMBO No. 5685-A
This type of FineFlex is an ideal sealing material in combustion and gas heating equipment. It’s also used as a lining and backup material for kilns.
TOMBO No. 5635-A
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