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Fiberfrax Firewall Heat Barrier

From $41.75 to $42.50
Description Part No. Price Buy
FIBERFRAX 970F 1/16" x 24"
Sold by the Foot
05-02678
$41.75
Quantity
FIBERFRAX 970J 1/8" X 24"
Sold by the Foot
05-02679
$42.50
Quantity
Subtotal $0.00
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Overview

  • Fiberfrax® Durablanket® LT and Durablanket LTZ are the newest additions to the highly regarded Fiberfrax ceramic fiber product line. Durablanket LT and LTZ maintain the advantages of previous Fiberfrax blanket grades, but with enhanced physical properties that improve both thermal performance and handling. These lightweight needled blankets integrate innovative proprietary processing technology with Fiberfrax's proven performance to create Alkegen's best alumina-silicate blanket available today.
  • Durablanket LT and LTZ needled blankets are entirely inorganic and maintain their strength, flexibility, and thermal properties in various work environments, without generating smoke or fumes. They can be utilized in a wide range of high-temperature applications, offering effective solutions to diverse thermal management challenges.
  • The improved performance of Durablanket LT and LTZ fibers helps end users lower their energy costs and meet increasingly stringent carbon emission targets, without necessitating more insulation. Their lower thermal conductivity provides enhanced thermal performance and energy savings benefits. Durablanket LT and LTZ enable the use of a thinner lining to achieve the same, or even superior, insulation performance.
  • Durablanket LT and LTZ exhibit excellent chemical stability and remain unaffected by most chemicals except hydrofluoric and phosphoric acids, and concentrated alkalis. If they get wet due to water or steam, their thermal and physical properties are retained after drying.

Features

  • High temperature stability
  • Low thermal conductivity
  • Thermal shock resistance
  • Good handling strength
  • Low heat storage
  • High tensile strength and resilience
  • Resistance to chemical attack
  • Good sound absorption

Applications

  • High temperature kiln and furnace linings
  • Billet/slab reheat furnaces
  • Furnace door linings and seals
  • Boiler insulations
  • Soaking pit seals
  • Pipe and duct insulation
  • Chemical process heaters
  • Heat shields
  • High temperature seals and gaskets
  • Glass tank crown insulation
  • Accessories
  • Frequently Purchased With
  • Customers Also Viewed

Reviews

This heat insulating product is easy to work with, and seems to adhere to my composite cowling with Dowsil 736. In hot areas, I easily was able to apply additional layers and so far everything is holding fast.

Steven M Verified Purchase

Fiberfrax 970J Paper 1/8 X 24W

June 23, 2025

Used on the inside of close cowl to prevent exhaust pipes overheating and bubbling paintwork. Works extremely well. Glued on with red silicone and a bead around the edges.

Chris M Verified Purchase

Fiberfrax 970J Paper 1/8 X 24W

February 17, 2025

As ordered

Kenneth L Verified Purchase

Fiberfrax 970J Paper 1/8 X 24W

July 2, 2024

Item worked as advertised and was easy to install

James G Verified Purchase

Fiberfrax 970F 1/16X24

April 1, 2024

This was exactly what I expected.

Sean T Verified Purchase

Fiberfrax 970J Paper 1/8 X 24W

January 3, 2023

perfect replacement for the 3 layers fiberfrax under the stainless firewall of my Lancair 360. this is the exact same product. gloves and paint mask mandatory!!!

Antoine S Verified Purchase

Fiberfrax 970J Paper 1/8 X 24W

January 12, 2022

Working on an auto ejection of bat cells for ballistic chute weight reduction and IN HOUSE Aircraft recovery w/supplies... FUN!

Steven H
November 8, 2020

Great Product, Fantastic customer service as always.

Tim M
March 13, 2020

Perfect product for what I had to used for.

Tavi
April 27, 2019

Exactly what I needed for furnace heat exchanger reassembly.

John J
November 12, 2018

Q&A

Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What is the weight per square foot of the Fiberfrax material?

Per supplier: P/N# 05-02678 is .051 to .0623 lbs/sq ft. P/N# 05-02679 is .105 to .140 lbs/sq ft.

Q: If planing to use on an engine cowling under foil sheet, what adhesive would you recommend to bond to painted cowling surface. Regular Pliobond 20 is not available in California.

You could use PLIOBOND 25 LV, it is CA compliant.

Q: Can this be used on the backside of the firewall to reduce heat transfer to inside of the fuselage?

Yes, that is one of its intended uses.

Q: Is the price for Fiberfrax Firewall Heat Barrier in LF or SF?

This material is 24 inches wide and sold by the linear foot(LF).

Q: Can fiberfrax be painted?

Yes the 970 F Paper can be painted.

Q: Is this FAA approved for certified aircraft?

We do not have FAA certs for this product.

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