Mineral Wool Board (1200ºF Industrial Mineral Wool Board)

THERMFIBER Industrial Board is an economical, semi-rigid, preformed mineral fiber insulation consisting of chemically inert mineral fibers bonded with a high temperature, thermosetting binder. Industrial Board is available in nominal densities from 4 to 12 lb./cu. ft. and suitable for temperatures up to 1200ºF (650ºC).


Linear Shrinkage<2% at 1200ºF (649ºC)
0% at 1050ºF (551ºC)
Melting Point ( ºC )1093
Melting Point ( ºF )>2000
Surface Burning CharacteristicsFlame spread 15; Smoke developed 0, per ASTM E-84
Stress CorrosionComplies with ASTM C-795. MIL I 24244A
Moisture ResistanceAdsorbs less than 1% by weight per ASTM C-553
CombustibilityRated noncombustible as defined by NFPA 220 when tested in accordance with ASTME-136


THERMAFIBER Industrial Board Insulation offers excellent thermal and acoustical performance in both hot and cold applications to conservcell namenergy, maintain process temperatures, provide personnel protection, prevent condensation, and reduce noise emission and transmission.

Industrial Board Insulation may be used to insulate plant equipment such as boilers, furnaces, ovens, ducts, precipitators, tanks and other mechanical equipment operating at continuous service temperatures from sub-ambient to 1200ºF.

Specification Compliance

THERMAFIBER Industrial Board products comply to the following standards and specifications: ASTM E-84; ASTM E-136 (rated noncombustible as defined by NFPA Standard 220 when tested according to ASTM E136); ASTM C-177; ASTM 0411; ASTM C-518; ASTM C-553 (Federal Spec. HH-I-558B); ASTM C 612; ASTM C 1335; ASTM C 165.

Safety First

Follow good safety and industrial hygiene practices during handling and installing of all products and systems. Take necessary precautions and wear the appropriate personal protectivcell namequipment as needed. Read material safety data sheets and related literature on products before specification and/or installation.


The information presented herein represents typical or average values obtained by ASTM or other standard methods. The values will vary due to normal manufacturing variations. The person using this product must determine its suitability for a particular application.

Features and Benefits

  • For use in continuous service up to 1200ºF (649ºC).
  • Exceptional thermal performance and resiliency.
  • Dimensionally stable at elevated temperatures with very low lineal shrinkage.
  • Excellent fire performance, noncombustible.
  • Will not wick moisture, promote corrosion or conduct electricity.
  • Lightweight and easy to fabricate.

General Information

THERMFIBER Industrial Board Insulation is available in five nominal densities. 4 through 12 lb./cu.ft. and meet or exceed the requirements of ASTM C 612-00. Industrial Board products are available in various thicknesses from 1″ to 6″. in 1/2″ increments. Standard width is 24″; standard length is 48″. (Non-standard sizes available)

Start up Procedure

On initial start-up only, heat rise should not exceed 15ºF per minute to allow binder to dissipate without excessive temperature rise. Thermal conductivity is not affected. When insulation is to be used in applications exposed to high air velocities. Adequate protection must be provided to prevent erosion of insulation. Severe vibration may cause degradation of insulation under some conditions. Contact your representative for recommendations on unusual applications.

Product Variations

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