Pamitherm – High-Temperature Industrial Insulation in Muscovite and Phlogopite Mica

Supplier & Converter · Standard Sheets and Custom Machined Parts

Set of machined Pamitherm components for high-temperature insulation in industrial environments.

Pamitherm is a high-performance thermal and electrical insulator, engineered from muscovite or phlogopite mica combined with a high-temperature silicone resin. Thanks to its mechanical strength, low thermal conductivity, and high dimensional stability, it is a benchmark material for harsh industrial environments.

ELIT is first and foremost a converter: we machine your custom technical parts from Pamitherm, manufactured strictly to your drawings and specifications. We also supply standard sheets, notably Pamitherm 41140, to meet the requirements of the metallurgical, glass, electrical, and mechanical engineering sectors.

  • Thermal resistance up to 1000 °C peak (depending on grade)

  • Excellent mechanical strength and low thermal expansion

  • Precision machining according to customer drawings

  • Rapid availability and dedicated technical support

Our Pamitherm Solutions – High-Temperature Insulation

Our Pamitherm or Mica Silicone Solutions – High-Temperature Insulation

Balance Between Thermal Insulation and Mechanical Strength

Pamitherm is available in different grades, primarily in muscovite mica (M) and phlogopite mica (P), to meet the diverse demands of industrial environments.
As conversion specialists, ELIT machines your custom technical parts from Pamitherm for your furnaces, presses, molds, and electrical equipment. We also supply standard sheets tailored to your industrial integration needs.

These solutions combine:

  • High-performance thermal and electrical insulation,

  • High mechanical strength, even under severe stress,

  • Dimensional stability and low thermal expansion,

  • Machinability enabling the production of precise, customized parts.

Key Applications:

Here are a few application examples where Pamitherm delivers outstanding performance. Backed by our custom machining expertise, we can also engineer parts and components tailored to numerous other specific industrial requirements:

    • Insulation and lining of industrial furnaces (melting, heat treatment, incineration).

    • Cladding for furnaces and hot chambers requiring high mechanical strength.

    • Supports for electrical heating elements and machined insulating parts.

    • Constructions requiring rigid insulating panels for extreme temperatures (glassworks, metallurgy, etc.).

    • Replacement of fiber-based panels in environments requiring a rigid solution.

Pamitherm Families – Muscovite and Phlogopite

  • Pamitherm is available in two main grades:

    • Pamitherm Muscovite (M), suitable for applications requiring excellent electrical insulation and good thermal stability.

    • Pamitherm Phlogopite (P), recommended for more extreme environments due to its enhanced resistance to high temperatures and thermal shocks.

    Both versions share the same core advantages: rigidity, dimensional stability, mechanical strength, and suitability for custom machining.

Pamitherm M – Muscovite Mica

  • Density: ~2,200 kg/m³
  • Operating temperature: up to 550 °C continuous, 700 °C peak
  • Characteristics: excellent electrical insulation, good thermal resistance, dimensional stability.
  • Typical applications: insulating panels, machined parts for furnaces, electrical supports, standard insulation components.

Pamitherm P – Phlogopite Mica

  • Density: ~2,200 kg/m³
  • Operating temperature: up to 750 °C continuous, 1000 °C peak
  • Characteristics: reinforced mechanical strength, excellent durability in harsh environments, thermal shock resistance.
  • Typical applications: machined parts subjected to high mechanical or thermal stress, insulation for induction or arc furnaces, high-temperature electrical equipment.

Technical Comparison Between Muscovite and Phlogopite Pamitherm

Technical specifications Muscovite mica Phlogopite mica Standard
Density
2,200 kg/m³
2,200 kg/m³
IEC 371-2
Continuous temperature
550 °C
750 °C
–
Peak temperature
700 °C
1000 °C
ISO 604
Compressive strength
400 MPa at 20 °C | 250 MPa at 200 °C
300 MPa at 20 °C | 240 MPa at 200 °C
ISO 604
Flexural strength
180 MPa at 20 °C
120 MPa at 20 °C
IEC 371-2
Tensile strength
155 MPa at 20 °C
110 MPa at 20 °C
ISO 527
Dielectric strength
25 kV/mm
25 kV/mm
IEC 371-2
Water absorption (after 24h at 25 °C)
< 0,5 %
< 0,5 %
IEC 371-2
Available thicknesses
0.2 – 80 mm
0.2 – 100 mm
–

Reference Pamitherm 41140 – High-temperature muscovite mica sheet

Our Pamitherm 41140 solutions – high-temperature insulation

Pamitherm 41140: custom-machined sheets and parts for your industrial facilities

The Pamitherm 41140 reference is an insulating sheet based on muscovite mica bonded with high-temperature silicone resin. Engineered to withstand the most demanding constraints of industrial environments, it delivers outstanding thermal and electrical insulation, high dimensional stability, and superior mechanical strength.

A benchmark material for the manufacture of technical components, Pamitherm 41140 is available in standard sheets and can be custom-machined in our workshops according to your technical drawings and specifications. Driven by our proven expertise, we produce parts precisely tailored to your industrial requirements, ranging from furnace insulation and the fabrication of electrical supports to integration into molds and presses.

Key characteristics of the Pamitherm 41140 sheet

  • Material: muscovite mica + silicone resin
  • Density: ~2,200 kg/m³
  • Operating temperature: 550 °C continuous, 700 °C peak
  • Dielectric strength: 25 kV/mm
  • Compressive strength: 400 MPa (20 °C) – 250 MPa (200 °C)
  • Flexural strength: 180 MPa (20 °C)
  • Tensile strength: 155 MPa (20 °C)
  • Absorption d’eau : < 0,5 %
  • Thicknesses: 0.2 to 80 mm
  • Dimensions: 1220×1020 mm / 1200×1000 mm

Backed by over 90 years of experience in industrial insulation, ELIT supports its clients across all their insulation needs, from the processing of rigid materials to the fabrication of flexible solutions, as well as on-site thermal insulation. Our expertise enables us to design precise, durable technical parts, engineered to meet the thermal, mechanical, and dimensional requirements of your industrial facilities.

Beyond Pamitherm, we master the machining and processing of all rigid and technical insulating materials:

  • Calcium silicate – rigid insulation up to 1050 °C, ideal for metallurgical, glassmaking, and petrochemical environments.

  • Technical foams – excellent thermal and acoustic insulation, available in open or closed-cell structures.

  • Microporous materials – ultra-low thermal conductivity for confined spaces and temperatures up to 1000 °C.

  • Composites – combined thermal insulation, electrical insulation, and mechanical strength for plastics processing and the electrical industry.

  • Ceramics – extreme solutions resistant up to 1850 °C for industrial furnaces and melting equipment.

  • Fibrous materials– lightweight, flexible, and high-performing for effective thermal insulation in complex environments.

With this multi-material expertise and dedicated technical support, we provide complete, custom solutions designed to optimize the energy efficiency and service life of your industrial installations.

Gallery of machined Pamitherm / Mica parts

Technical part machined from muscovite mica-based Pamitherm, used for thermal and electrical insulation in high-temperature industrial environments.
Custom-machined muscovite Pamitherm component for demanding industrial applications.
Set of machined Pamitherm components for high-temperature insulation in industrial environments.
Custom-machined Pamitherm parts for furnaces, presses, and electrical equipment.
Insulating tube made of phlogopite mica-based Pamitherm, offering excellent resistance to high temperatures and thermal shocks.
Custom-machined phlogopite mica tube for severe thermal and mechanical applications.

Why choose ELIT for your Pamitherm solutions?

• High-performance thermal and electrical insulation, tailored for demanding industrial environments.

• Custom precision machining from Pamitherm sheets, according to your drawings and specifications.

• Outstanding mechanical strength and dimensional stability, even under severe thermal stress.

• Dedicated technical support to assist with grade selection and component integration.

Need a Pamitherm solution?Contact our experts for a customized quote.