Polyimide foam high-temperature aerospace insulation
Materials · High-Temperature Foam

Polyimide Foam — Lightweight, Thermal, Acoustic and Fire Insulation Materials.

Inherently fire-resistant and virtually smoke-free when exposed to open flame, polyimide foam delivers outstanding thermal insulation, acoustic performance, and flexibility across an extreme temperature range. The material of choice for aerospace, defence, mass transit, and any safety-critical environment where conventional foams simply cannot perform.

Inherently Flame-Resistant ASTM E 162 Barrier Mass Loaded Vinyl < 1 lb/ft³ Ultra-Low Density DOD-I-24688
Material Overview

Where Conventional Foams Reach Their Limits

Polyimide foam is a uniquely engineered open-cell thermoset foam derived from polyimide resin the same polymer family used in high-performance aerospace films and coatings. Unlike most foam materials that melt, drip, or produce toxic gases in a fire, polyimide foam chars in place, releasing virtually no smoke or toxic combustion by-products. kristoFOAM supplies polyimide foam in sheet, roll, and custom-fabricated forms for aerospace, naval, mass transit, and industrial high-temperature insulation applications.

Polyimide foam material
Inherent Flame Resistance — No Additives
Inherent Flame Resistance — No Additives
Fire resistance is built into the polyimide polymer chain — not achieved through flame-retardant additives that can leach out or degrade over time. The foam chars in place without melting, dripping, or producing flaming droplets.
Minimal Smoke & Non-Toxic Combustion
Minimal Smoke & Non-Toxic Combustion
When exposed to fire, polyimide foam generates dramatically less smoke and fewer toxic combustion gases than polyurethane, polystyrene, or most other foam types a critical safety advantage in confined environments such as aircraft, ships, and rail cars.
Extreme Temperature Range
Polyimide foam remains flexible and performs reliably from cryogenic temperatures as low as -200°C through sustained service at +300°C, with short-term excursions to even higher temperatures making it suitable for insulation adjacent to engines, exhausts, and hot process equipment.
Ultra-Lightweight
Ultra-Lightweight
At 6 kg/m³ polyimide foam is among the lightest thermal and acoustic insulation materials available, and considered a critical material in aerospace and defence applications.
Applications

Where Polyimide Foam Is Used

From aircraft fuselage insulation to naval bulkhead soundproofing and high-speed rail fire barriers, polyimide foam is specified wherever engineers need ultra-light, flame-safe, thermally stable insulation.

Aircraft Insulation
Aircraft Insulation
Thermal and Acoustic insulation blankets for commercial, military, and private aircraft fuselage, cabin, and galley areas. Polyimide meets the strictest aviation fire, smoke and toxicity safety requirements.
Naval Vessel Insulation
Naval Vessel Insulation
IMO FTP Code-compliant bulkhead, deckhead, and hull insulation for naval surface ships and submarines providing critical fire containment, thermal protection, and acoustic dampening in confined marine spaces.
Military Vehicle Insulation
Military Vehicle Insulation
MIL-SPEC qualified thermal and acoustic insulation for armoured vehicles, military aircraft, and defence electronics enclosures where fire performance, weight, and temperature extremes are all critical design constraints.
Rail & Mass Transit Insulation
Rail & Mass Transit Insulation
Polyimide foam fire barriers and thermal insulation panels for high-speed rail, metro, and bus transit interiors and equivalent passenger rail fire safety standards.
Equipment and Infrastructure Insulation
Equipment and Infrastructure Insulation
Thermal insulation for industrial pipework, furnaces, ovens, and process equipment operating at sustained elevated temperatures where conventional foam insulations would melt, degrade, or present a fire hazard.
Acoustic Absorption Panels
Acoustic Absorption Panels
Open-cell polyimide foam provides excellent sound absorption across a broad frequency range used in anechoic chambers, engine test cells, HVAC acoustic liners, and any high-temperature acoustic treatment application.
Product Gallery

Polyimide Foam Products

Polyimide foams can be covered with a range of solid and perforated facing materials and supplied in sheet and die cut formats.

Explore Complimentary Materials

Insulation Materials Supplied with Polyimide Foams

Vibration Damping Tiles
Polymeric damping tiles are designed to stop reverberant “ringing” vibration in heavy plate constructions. Structural damping materials consume vibrational energy and transform it into heat, while dissipating vibrational energy in the structure before it can build up and radiate as sound. Tiles are commonly installed upon steel, aluminum, and fiberglass laminate. Learn More.
Incombustible Hull Boards
Hull Boards is a lightweight,semi-rigid board insulation material made from felted glass fibers. This material is characterized by a low organic content, which promotes incombustibility and makes them suitable for a range of military, commercial and pleasure craft applications. Hull Board has a smooth surface which can be covered with a range of solid or perforated facing materials. Learn More.