Levron Aerogel Felt product roll showing translucent nano-porous fibrous structure with thermal gradient illumination
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Product — Levron Aerogel Felt

Advanced Aerogel Felt for
High-Performance Thermal
Protection

Silica-based aerogel-enhanced insulation felt engineered for advanced thermal protection, fire-resistant performance, moisture resilience, and compact high-performance insulation across demanding industrial and technical applications.

0.022
W/m·K conductivity
650°C
max operating temp
165°
superhydrophobic
A1
fire class
-200°C to +650°C
Operating Range
90–95%
Porosity
6–10 mm
Thickness
20+
Year Lifespan
Levron Aerogel Felt material cutaway showing silica aerogel matrix with embedded glass wool reinforcement fibers and nano-porous structure

Silica-Based Aerogel
Insulation Felt

Levron Aerogel Felt is a lightweight, silica-based, aerogel-enhanced insulation material produced from Levron Aerogel reinforced with stabilized glass wool. The result is a flexible, high-performance thermal barrier that combines the extraordinary insulation properties of nano-porous aerogel with the structural integrity of engineered fiber reinforcement.

Unlike conventional insulation materials that rely on bulk thickness for thermal resistance, aerogel felt achieves high-performance insulation in a compact, flexible format — enabling installation in constrained geometries, wrapped surfaces, and space-critical systems where conventional materials cannot perform.

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Nano-Porous Structure

50–100 nm pore sizes trap air at the molecular level

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Glass Wool Reinforced

Structural stability with aerogel integration

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Flexible Format

Roll-form for curves, wraps, and complex surfaces

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Ceramic Wool Variant

Special configuration for up to 1300°C

Practical Insulation
for Real Engineering
Challenges

The felt format transforms aerogel's extraordinary thermal performance into a commercially practical, installation-ready product form that integrates into actual engineered systems.

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Flexible Wrap-Around Installation

Conforms to pipes, tanks, and curved geometries — eliminating complex fabrication for non-flat surfaces.

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Compact Thermal Protection

6–10 mm felt thickness delivers insulation equivalent to significantly thicker conventional materials, saving critical space.

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Machinable and Cuttable

Die-cut to specific dimensions. Trim on-site. Adapt to complex system geometries without specialized tooling.

Lower Integration Cost

Reduced thickness, lower weight, and simpler installation logic translate to lower total installed cost across systems.

Split comparison: conventional 6cm thick insulation versus 2cm Levron Aerogel Felt on industrial pipes, demonstrating compact thermal protection advantage

Engineering-Grade
Performance Data

Every parameter represents measured performance from Levron Aerogel Felt testing — providing the technical foundation for advanced insulation material evaluation.

Thermal Conductivity
0.022–0.024
W/m·K (felt product)
Ultra-low thermal conductivity in an applied felt format. Nano-porous aerogel architecture blocks conduction, convection, and radiation simultaneously.
Platform level: 0.012–0.016 W/m·K
Operating Temperature
-200°C to +650°C
standard configuration
Glass wool-reinforced standard felt. Ceramic wool variant extends upper limit to 1300°C for extreme thermal environments.
Ceramic variant: up to 1300°C
Fire Classification
A1 Class
non-combustible
Highest fire classification — zero fire load contribution. Material does not burn, does not sustain flame, maintains structural integrity under extreme thermal exposure.
Hydrophobicity
165°
water contact angle
Superhydrophobic behavior maintained under mechanical stress. Active up to 650°C. Complete resistance to moisture ingress preserves insulation performance.
Porosity
90–95%
air by volume
One of the lightest solid structures known — overwhelmingly composed of trapped air. Minimizes weight penalty in mass-sensitive applications.
Density
300–1500
kg/m³
Adjustable density across product configurations — enabling optimization for specific application requirements from ultra-light to structural compression.
Compressive Strength
~40 kPa
mechanical resistance
Sufficient structural integrity for compression environments within enclosures, housings, and assembled insulation systems.
Specific Heat
~1000
J/kg/K
High specific heat enables thermal energy absorption — the barrier buffers thermal excursions during transient events, not only blocking but absorbing heat.
Property Standard Value
Thermal Conductivity EN 12667 0.022–0.024 W/m·K
Operating Temperature Range -200°C to +650°C
Ceramic Variant Max Temp Up to 1300°C
Density EN 1602 300–1500 kg/m³
Porosity BET Analysis 90–95%
Fire Classification EN 13501-1 A1 (Non-Combustible)
Water Contact Angle Sessile Drop 165°
Vapor Permeability (μ) EN 12086 5–5.5
Compressive Strength EN 826 ~40 kPa
Specific Heat ~1000 J/kg/K
pH ~8
Thickness 6–10 mm
Width 100 cm
Roll Length 20 m
Expected Service Life 20+ years
Macro-to-micro visualization: aerogel felt material, microscopic fiber+aerogel composite, nano-porous silica network with heat suppression

How Aerogel Felt
Achieves Extraordinary
Insulation

The performance of Levron Aerogel Felt is not achieved by adding more material. It's engineered into the fundamental molecular architecture — a three-dimensional silica network that suppresses heat transfer through three simultaneous mechanisms.

Nano-Scale Pore Confinement

A silica network with 50–100 nm pore sizes — smaller than the mean free path of air molecules at standard conditions. This physically constrains gas-phase heat transfer, creating more effective thermal shielding per millimeter than any conventional insulation material.

Triple Heat Transfer Suppression

Conduction minimized by tortuous solid pathways through the silica skeleton. Convection eliminated by molecular-scale air confinement. Radiation scattered and absorbed within the pore network. All three mechanisms addressed simultaneously — unlike conventional materials that address only one or two.

>90% Air — Structural Lightness

More than 90% of the material volume is air — one of the lightest solid structures known. Combined with glass wool reinforcement, this air-dominant architecture delivers exceptional thermal performance with minimal mass.

Surface Chemistry — Superhydrophobic Resilience

Chemical modification of the silica surface creates 165° superhydrophobic behavior that persists to 650°C. Moisture cannot penetrate the material structure, eliminating the performance degradation that characterizes conventional insulation systems in humid or wet environments.

Engineered for Demanding
Thermal Environments

Levron Aerogel Felt serves as a high-performance insulation platform across four distinct application clusters — from industrial heat management to advanced thermal protection concepts.

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Cluster A

Industrial Heat Management

Pipe & Tank Insulation

Wrap-around insulation for process pipes, storage tanks, and heat exchangers — 3× thinner than conventional at equal thermal resistance.

Boiler & Furnace Systems

High-temperature insulation for combustion systems, process furnaces, and thermal processing equipment.

Petrochemical & Process Industries

Compact, moisture-resistant insulation for refineries, chemical processing, and high-temperature process heat systems.

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Cluster B

Mobility & Transport

Land Vehicle Thermal Management

Lightweight engine compartment, exhaust, and underbody insulation for commercial and specialty vehicles.

Refrigerated Transport

Compact, high-performance insulation for cold-chain vehicles — maintaining temperature stability with reduced wall thickness.

Aerospace-Adjacent Thermal Systems

Ultra-lightweight thermal barriers for air vehicle compartments and propulsion-adjacent thermal shielding concepts.

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Cluster C

Cryogenic & Temperature-Controlled

Cryogenic Systems

Operating range to -200°C with consistent superhydrophobic behavior — no moisture-related performance degradation in cold environments.

Hot/Cold Water Tanks

Dual-temperature insulation for thermal storage systems maintaining consistent performance across temperature cycling.

Thermal Stability Systems

Insulation for environments requiring precise thermal stability with zero performance drift over extended service life.

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Cluster D

Advanced Thermal Protection

Space-Constrained Thermal Barriers

Ultra-thin insulation for systems where volume is at a premium — electronic enclosures, compact assemblies, and miniaturized thermal zones.

Engineered Insulation Assemblies

Custom multilayer configurations combining aerogel felt with structural or reflective layers for application-specific thermal performance.

Battery-Adjacent Protection Concepts

High-temperature protective barriers for battery-adjacent thermal management — where fire resistance and compact design are critical.

How Levron Aerogel Felt
Compares to Conventional Insulation

Real test data. In a controlled 1000°C flame test, 2 cm Levron Felt outlasted 5 cm stone wool + 4 cm glass wool combined. Here's the full comparison.

Thickness for Equivalent Thermal Resistance

Stone Wool
6 cm
Glass Wool
5–6 cm
Levron Aerogel
~2 cm

Multi-Property Performance Profile

Levron Aerogel Felt
Conventional Insulation
Property Stone Wool Glass Wool Standard Aerogel Levron Aerogel Felt
Thermal Conductivity 0.035–0.045 W/m·K 0.032–0.044 W/m·K 0.018–0.025 W/m·K 0.022–0.024 W/m·K
Max Temperature 500–700°C 400–500°C 600–900°C Up to 1300°C
Water Resistance Poor — loses efficiency Poor — absorbs moisture Moderate 165° superhydrophobic
Fire Test (1000°C) 5 cm fails at 9 min 4 cm fails at 9 min Variable 2 cm — test stopped
Thickness for Equal R 6 cm 5–6 cm 2–3 cm ~2 cm
Weight High density Moderate Low Ultra-light (>90% air)
Long-Term Stability Degrades with moisture Degrades with moisture Good 20+ years, zero maintenance
Installation Flexibility Rigid, bulky Fragile Varies Flexible, machinable

Values represent Levron Aerogel Felt product data compared to representative ranges for conventional insulation material classes. Actual performance depends on specific configurations and operating conditions.

Split-screen: 1000°C flame test on aerogel felt (left) and superhydrophobic water droplet beading on felt surface (right)

Two Standout Properties
That Define the
Product Advantage

Fire resistance and hydrophobicity are not independent features — they work together to create a fundamentally more reliable insulation system that maintains performance in conditions where conventional materials fail.

1000°C Direct Flame Verification

At 1000°C direct flame: 5 cm stone wool + 4 cm glass wool (9 cm total) failed within 9 minutes. A single 2 cm Levron Aerogel Felt layer withstood continuous exposure — the test was stopped voluntarily with the material still intact.

2 cm Levron outperformed 9 cm conventional
Superhydrophobic Surface Chemistry

165° water contact angle ensures complete moisture rejection. Conventional insulation loses 50%+ efficiency when wet — Levron Aerogel Felt maintains identical thermal performance in dry, humid, wet, or salt-spray environments.

Combined Fire + Moisture Advantage

In real-world installations, insulation faces both fire risk and moisture exposure. A material that resists fire but absorbs water — or repels water but fails under flame — provides incomplete protection. Levron Aerogel Felt addresses both simultaneously.

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Fire Protection

A1 fire class — non-combustible. The material does not contribute to fire load, does not sustain flame, and maintains structural integrity under extreme thermal exposure. The insulation itself never becomes a vulnerability.

1000°C flame tested • A1 fire class • Test stopped voluntarily
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Moisture Resilience

165° superhydrophobic behavior active up to 650°C operating temperature. Mechanical impacts do not reduce hydrophobic performance. Zero moisture absorption — maintaining full insulation performance regardless of environmental conditions.

165° contact angle • Active to 650°C • Zero absorption

Watch Levron Aerogel
Perform Under Real Conditions

Fire resistance, thermal management, and structural integrity — demonstrated in practice with actual material samples.

Levron Aerogel — product demonstration video
Official Film Levron Aerogel · Material Performance Showcase

Beyond Thermal Performance:
Total Installed Value

Advanced insulation must also be operationally realistic. Levron Aerogel Felt translates technical performance into practical decision value for procurement, operations, and engineering teams.

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Lightweight Structure

With >90% air content, the material delivers high-performance insulation with minimal mass. Lower weight means easier handling, reduced structural load on supports, and lower transport costs per installed unit.

>90% air by volume • Ultra-lightweight
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Long Service Life

Expected 20+ year service life with zero maintenance. No performance degradation, no bacteria or mold growth, no moisture-driven replacement cycles. Lower lifecycle cost across the full operating period.

20+ years • Zero maintenance
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Lower Transport & Install Cost

Thinner material (6–10 mm) means smaller shipping volume. Lighter weight reduces logistics cost. Flexible format enables faster installation. Machinability eliminates specialized fabrication requirements.

6–10 mm • Flexible • Machinable
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Easier Integration

Flexible felt conforms to pipes, tanks, and curved surfaces without custom forming. Die-cuttable to specific dimensions. Simpler installation logic for complex or constrained geometries.

Roll format • 100 cm width • 20 m length
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Thermal Shock Resistance

Stable performance under rapid temperature changes. Very low thermal expansion means no deformation, no gaps, and no insulation integrity loss during temperature cycling in dynamic thermal environments.

Low expansion • Shock resistant
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Impact Resistance

Unlike brittle or rigid insulation formats, aerogel felt maintains structural and thermal integrity under mechanical impact — critical for transport, installation handling, and vibration-exposed systems.

Flexible • Impact tolerant

A Serious Advanced
Materials Partner

Levron Aerogel is the result of 7 years of dedicated research and development — from thousands of laboratory experiments to a fully integrated 14,000 m² industrial facility. We don't sell a single product SKU. We engineer application-specific aerogel solutions.

01
7 Years R&D

Thousands of lab experiments across 5+ aerogel chemistry systems — silica, polymer, metal oxide, carbon, cellulose.

02
14,000 m² Facility

Fully integrated production — from raw material processing through Sol-Gel synthesis to final product formation.

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Felt & Granule Platform

Two core product formats engineered for different application requirements — flexible felt and precision granules.

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Custom Development

Application-specific configurations, custom thicknesses, composite structures, and co-developed solutions.

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Proprietary Sol-Gel Process

Production method focused on easily deriving nano-products from various raw material types at industrial scale.

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OEM Collaboration

Custom solutions co-developed with OEMs, system integrators, and end users for specific requirements.

Levron Aerogel 14,000 m² integrated manufacturing facility with automated production lines for aerogel felt insulation

From Technical Interest
to Material Confidence

A structured engagement pathway designed for engineers, procurement professionals, and product developers who require material confidence before integration commitment.

1

Request Sample

Receive physical samples of Levron Aerogel Felt for hands-on evaluation and initial assessment.

2

Technical Datasheet

Access full specifications, test data, and engineering documentation for material evaluation.

3

Engineering Consultation

Discuss application requirements, thermal modeling, and integration concepts with our engineering team.

4

Pilot Evaluation

Small-batch production for application testing, system validation, and integration proof.

5

Production Supply

Volume production with quality assurance, custom configurations, and ongoing technical support.

Product Knowledge Center

Access technical documentation, comparison guides, and educational resources to support your aerogel felt material assessment.

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Levron Aerogel Felt — Technical Datasheet

Full specifications: thermal conductivity, temperature range, fire classification, mechanical properties, and dimensional options.

Download PDF →
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Material Safety Data Sheet (MSDS)

Environmental and safety specifications. Non-toxic, eco-safe material compliant with workplace safety requirements.

Download MSDS →
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Request Material Sample Kit

Physical samples of Levron Aerogel Felt for hands-on evaluation, internal testing, and stakeholder demonstration.

Request Samples →
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Aerogel Felt vs. Conventional Insulation

Comprehensive benchmarking guide comparing aerogel felt performance against stone wool, glass wool, and standard insulation materials.

Request Guide →
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Fire Resistance & Safety Data

Detailed fire test results, A1 classification documentation, and flame exposure performance data.

Request Data →
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Schedule Engineering Consultation

Book a session with our materials engineering team to discuss application requirements, thermal modeling, and integration.

Schedule Call →

Engineering FAQ — Levron Aerogel Felt

What is the difference between the standard and ceramic wool variant?

The standard variant uses glass wool reinforcement and operates continuously from -200°C to +650°C. The ceramic wool variant replaces glass wool with ceramic fiber reinforcement, extending the upper operating limit to 1300°C. Both variants maintain the same silica aerogel matrix, hydrophobic behavior, and insulation performance characteristics.

How does 0.022 W/m·K compare to the platform-level 0.012 W/m·K?

The 0.012–0.016 W/m·K value represents pure Levron Aerogel material conductivity at the platform level. The 0.022–0.024 W/m·K value represents the applied aerogel felt product — which combines aerogel with glass wool reinforcement for structural integrity. The felt product still outperforms conventional insulation materials by 40–60% in thermal conductivity.

Can Levron Aerogel Felt be used in direct outdoor exposure?

Yes. The 165° superhydrophobic behavior provides complete moisture rejection in rain, humidity, and salt-spray environments. The material does not absorb water, does not grow bacteria or mold, and maintains full insulation performance regardless of weather exposure. UV resistance and chemical inertness further support outdoor durability.

What thicknesses are available and can they be customized?

Standard product thickness is 6–10 mm. Multiple layers can be applied for higher thermal resistance. Custom thicknesses, widths, and configurations are available through engineering consultation — including die-cut shapes and application-specific geometries.

Is the material safe for human contact and indoor environments?

Yes. Levron Aerogel and the resulting felt product are non-toxic and eco-safe. The material does not release harmful fibers, does not support bacterial or mold growth, and is suitable for both industrial and indoor applications where personnel contact may occur.

How does moisture affect insulation performance compared to stone wool?

Conventional stone wool and glass wool absorb moisture, losing 50%+ of thermal efficiency when wet. Levron Aerogel Felt is superhydrophobic (165° contact angle) — it physically cannot absorb water. This means identical thermal performance in dry, humid, or wet conditions — a critical advantage in real-world installations where moisture exposure is unavoidable.

What is the minimum order quantity for samples and production?

Evaluation samples can be provided in small quantities for testing purposes. Production quantities are discussed during engineering consultation based on application requirements, projected volumes, and customization needs. Contact our team to begin the evaluation process.

Ready to Evaluate Levron
Aerogel Felt for Your Application?

Choose the engagement pathway that matches your evaluation stage. Our team supports engineers, procurement professionals, technical buyers, and product developers.

For Engineers

Discuss thermal modeling, application fit, and integration concepts with our materials engineering team.

Talk to an Engineer

For Procurement

Request pricing, lead times, volume capabilities, and supply terms for your insulation material requirements.

Request Quote

For Technical Buyers

Access full specifications, test data, and engineering documentation for material selection and evaluation.

Request Datasheet

For Product Developers

Receive physical aerogel felt samples for hands-on evaluation, internal testing, and integration prototyping.

Request Sample
Levron Aerogel Felt
0.022 W/m·K A1 Fire Class 165° Hydrophobic