Elevated Temperature Board

Elevated Temperature Board

Knauf Insulation Elevated Temperature Board 1000° with ECOSE® Technology is a lightweight insulation (2.8 pcf, 44.9 kg/m3) bonded with ECOSE® Technology. It is a semi-rigid, board-like form with superior handling properties andinsulating effectiveness at minimum cost.

ECOSE® Technology

ECOSE Technology is a revolutionary binder chemistry that enhances the sustainability of our products. The “binder” is the bond that holds our glass mineral wool product together and gives the product its shape and brown color. ECOSE Technology is a plant-based, sustainable chemistry that replaces the phenol/formaldehyde (PF) binder traditionally used in glass mineral wool products. Products using ECOSE technology are formaldehyde-free and have reduced global warming potential when compared to our products of the past.


Knauf Elevated Temperature Board 1000° with ECOSE® Technology is used for boiler walls, hot precipitators, hot ductwork, cylindrical tanks, towers, stacks, and industrial ovens.

Features and Benefits

Excellent Thermal Properties

  • Reduces operating cost.

Low Installed Cost

  • Lightweight.
  • Easy to fabricate.

Packaging - Cartons and Sleeves

  • Damage resistant.
  • Reduces storage space.

Resilient Glass Mineral Wool

  • Maintains integrity at elevated temperatures.

Indoor Air Quality

Certified by UL Environment for indoor air quality (IAQ) as low emitting products and where noted, have achieved the more stringent GREENGUARD Gold certification and verified to be formaldehyde-free.

  • Carbon negative: meaning Knauf insulation products used for thermal insulating purposes recover the energy that it took to make them in just hours or a few days, depending on the application. Once installed, the product continues to save energy and reduce carbon generation as long as it is in place.
  • Fiber glass insulation with ECOSE® Technology contains three primary ingredients:
    1. Sand, one of the world’s most abundant and renewable resources
    2. A minimum 50% recycled post-consumer glass content and UL Environment verification every 6 months
    3. ECOSE® Technology which reduces binder embodied energy by up to 70% and total product embodied energy by up to 4%.

    Specification Compliance

    In U.S.:

    • UL Classified
    • Conforms to Marine Equipment European 1408/13
    • ASTM C 612; Type IA, IB, II- category 1, III
    • ASTM C 795
    • GREENGUARD Certified
    • GREENGUARD Gold certified
    • HH-I-558C (Amend. 3); Form A, Class 1, 2, 3
    • NRC 1.36 (Certification needs to be specified at time of order)
    • ASTM C 1139, Type III
    • MIL-I-22023D, Type III (except for pH requirements)
    • MIL-I-24244C
    • This product complies with Oregon Revised Statue 453.085 and contains less than 0.10% decabromdiphenyl ether (DecaBDE) by mass.
    • USCG 164 109/15/1

    In Canada:

    • ULC Classified, CAN/ULC S102-M88
    • CGSB 51-GP-10M

    Technical Data

    Surface Burning Characteristics

    • UL/ULC Classified
    • Does not exceed 25 Flame Spread, 50 Smoke Developed when tested in accordance with ASTM E 84, CAN/ULC S102-M88, NFPA 255 and UL 723

    Temperature Limitation (ASTM C 411)

    • Up to 1000°F (537.8°C)

    Corrosiveness (ASTM C 665)

    • Does not accelerate corrosion on steel.

    Corrosiveness (ASTM C 1617)

    • The corrosion rate in mils/yr will not exceed that of the 1 ppm chloride solution.

    Microbial Growth (ASTM C 1338)

    • Does not support microbial growth

    Application and Specification Guidelines


    • During initial heat-up to operating temperatures above 350°F (177°C), a slight odor and some smoke may be given off as a portion of the bonding material used in the insulation begins to undergo a controlled decomposition.
    • If natural convection is not adequate in confined areas, forced ventilation should be provided in order to protect against any harmful fumes and vapors that might be generated.


    • Protect material from water damage or other abuse. Cartons are not designed for outside storage. Vacuum packaged material can be stored outside if care is taken not to puncture the polybag.


    • Apply the product on clean, dry surfaces.


    • All insulation joints must be firmly butted. Mount flush against surfaces to 1000°F (538°C) or use in panels mounted away from operating surface.
    • Knauf Insulation ET Board 1000° is designed to be applied over welded pins and/or studs up to1/2" (13 mm) in diameter. The board is to be held in place by speed washers, tension clips or metal mesh reinforcement.
    • Installation method should not compress material beyond maximum of 5% at any point.
    • Pins and studs shall be located a maximum of 4" (102 mm) from each edge and spaced no greater than 16" (406 mm) on center.
    • In temperatures over 550°F (288°C) and designed thickness over 3" (76 mm) dual layer application with staggered joints is recommended. Install thickness recommended by Knauf Insulation or NAIMA 3E Plus program.
    • Finish surface with metal cover, or with insulating cement and canvas.


    Vacuum packaging Knauf Insulation Elevated Temperature Borad will reduce some mechanical properties of the insulation. By ordering vacuum packaged products, the customer acknowledges these reduced properties and assumes responsibility for the fitness for use in their application.


    Glass mineral wool may cause temporary skin irritation. Wear long-sleeved, loose-fitting clothing, head covering, gloves and eye protection when handling and applying material. Wash with soap and warm water after handling. Wash work clothes separately and rinse washer. A disposable mask designed for nuisance type dusts should be used where sensitivity to dust and airborne particles may cause irritation to the nose or throat.

    Glass Mineral Wool and Mold

    Glass mineral wool insulation will not sustain mold growth. However, mold can grow on almost any material when it becomes wet and contaminated. Carefully inspect any insulation that has been exposed to water. If it shows any sign of mold it must be discarded. If the material is wet but shows no evidence of mold, it should be dried rapidly and thoroughly. If it shows signs of facing degradation from wetting, it should be replaced.


    The chemical and physical properties of Knauf Elevated Temperature Board 1000° with ECOSE Technology represent typical average values determined in accordance with accepted test methods. The data is subject to normal manufacturing variations. The data is supplied as a technical service and is subject to change without notice. References to numerical flame spread ratings are not intended to reflect hazards presented by these or any other materials under actual fire conditions. 

    Check with your Knauf Insulation sales representative to assure information is current.