Board-form heat-insulation material

TOMBO™ No. 5625


FINEFLEX BIO Board is a product that adds inorganic and organic binders to FINEFLEX BIO Bulk and is molded into a board form.
TOMBO No.5625-M is a minimal odor type that has incorporated a very small amount of organic binder. TOMBO No.5625-A is a general-use type that has excellent workability.

Product Category

Thermal Insulation MaterialUp to 1500℃


Energy (Electricity, Gas, Heat Supplies)Thermal Power Stations (Coal)Thermal Power Stations (LNG)Nuclear Power StationsBiomass Power Generation and Heat Supply PlantsElectronicsSemiconductors & Flat Panel Displays (FPD)Electronic Components5GBatteries & Electricity Storage SystemsCarbon Neutrality and DecarbonizationIndustrial-Use InsulationEnergy Saving ProposalsBiomass Power Generation and Heat Supply PlantsVarious Plant FacilitiesIndustrial Furnaces (Electric Furnaces/Combustion Furnaces)


A product made of alkali earth silicate (AES) wool that does not apply to OPHSCS.
It is lightweight and has a low thermal conductivity, and so it displays excellent insulation performance.
Processed products can be manufactured.


General high-temperature insulation
Lining material and backup material for insulating the ceilings of kilns and furnace walls
Expansion allowance filler for each part within a furnace
Gas sealing materials

Quality characteristics

Item TOMBO No.
5625-M 5625-A
Features Minimal odor type It offers excellent machinability.
Color White
Density (kg/m3) 250
Maximum heat resistant temperature (°C) 1300
Regular working temperature (°C) 1000
Bending strength (MPa) Normal state 0.2 0.5
Heat shrinkage rate (%) 1000°C 1.2 0.9
1200°C 1.7 2.8
Ignition loss (%) 0.7 4.0
Chemical components SiO2, CaO+MgO, other
*The values above are our actual measurement values. They are not standard values.
*Depending on the usage environment, the product may crack and warp at a temperature of 1100°C or more.
When ordering, please inform us of your usage conditions.

Standard dimensions

Thickness (mm)  Width × length (mm)
25 600 × 900


  • TOMBO is a registered trademark or trademark of NICHIAS Corporation.
  • Name of products with "®" are registered trademarks of NICHIAS Corporation.
  • Name of products with "™" are trademarks of NICHIAS Corporation.
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