IZOLTEX
BASE FABRICS

Woven Insulation Fabrics for High-Temperature Protection

In high-temperature industrial environments, reliable thermal insulation is critical. IZOLTEX heat-resistant fabrics, made from aramid, fiberglass, ceramic, basalt, or silica fibers, provide effective protection for equipment, personnel, and processes.

Designed to withstand thermal stress, IZOLTEX fabrics help minimize heat loss, improve energy efficiency, and ensure operational safety. They are used in a wide range of applications—from furnace linings and expansion joints to protective covers and insulation wraps.

IZOLTEX – Woven Fabric Line

Explore the complete range of IZOLTEX insulation fabrics designed for high-temperature protection in industrial environments. Instead of traditional specification tables, we present key performance indicators in clear, easy-to-read diagrams — allowing you to compare fabric types and select the most suitable solution for your application.

Below are the available models of IZOLTEX insulation fabrics, each listed with their key technical characteristics: fiber composition, short-term and continuous temperature resistance, thermal conductivity, and mass loss on ignition. This format enables quick technical comparison and helps you choose the most suitable fabric for your thermal insulation needs.

TECHNICAL PARAMETERS

+300 C

IZOLTEX-50

Composition

Temperature CT|ST (C)

Thermal Conductivity (W/mK)

Mass Loss on Ignition (%)

Approximate Thickness (mm)

Fiberglass

+550|+650

0,04

2

0,5-5,0

IZOLTEX-50

Composition

Temperature CT|ST (C)

Thermal Conductivity (W/mK)

Mass Loss on Ignition (%)

Approximate Thickness (mm)

Fiberglass

+550|+650

0,04

2

0,5-5,0

IZOLTEX-50

Composition

Temperature CT|ST (C)

Thermal Conductivity (W/mK)

Mass Loss on Ignition (%)

Approximate Thickness (mm)

Fiberglass

+550|+650

0,04

2

0,5-5,0

Fabric  Type

Composition

Temperature

CT | ST

TC

MLI

AT

Picture

IZOLTEX-30

Aramid

+300 | +500

0,04

0,5-3,0

IZOLTEX-50

Fiberglass

+550 | +650

0,04

2

0,5-5,0

IZOLTEX-70

Basalt

+700 | +900

0,04

2

0,5-3,0

IZOLTEX-90

Ceramic + Fiberglass

+800 | +1200

0,05

18

2,0-5,0

IZOLTEX-120

Ceramic + Inconel

+1200 | +1430

0,06

18

2,0-5,0

IZOLTEX-130

High Silica

+1100 | +1300

0,03

2

0,3-1,5

Abbreviations and Units:

Temperature:

CT. – Continuous temperature resistance (°C)

ST – Short-term temperature resistance (°C)

TC – Thermal conductivity (W/m·K)

MLI – Mass loss on ignition (%)

AT – Approximate Thickness (mm)

operating temperature

температурна диаграма IZOLTEX

FIBER STRENGHT VS. TEMPERATURE

Fiber Strenght Tape

Thermal Strength — The Foundation of Reliability

The resistance of fibers to high temperatures determines the performance and service life of insulation and sealing products. The chart provides a clear comparison of how glass, basalt, aramid, carbon, ceramic, and silica fibers behave under heat. This data helps identify the optimal material for applications where reliability under extreme temperatures is critical.

Beyond the Chart: IZOLTEX‑75

IZOLTEX‑75 — A Hybrid Solution for Demanding Conditions

While each fiber has its own thermal profile, combining them can unlock new functional advantages. IZOLTEX‑75 is a hybrid fabric that unites the strengths of two high-performance materials: glass fibers in the warp and basalt fibers in the weft.

This combination is engineered to provide a balanced performance under high-temperature industrial conditions, where both mechanical stability and thermal resilience are critical.

Why IZOLTEX‑75 stands out:

  • Enhanced cross-direction heat resistance due to the high thermal tolerance of basalt (up to 760 °C continuous),

  • Improved flexibility and drapability along the warp thanks to the glass fibers — ideal for installation on complex surfaces,

  • Superior dimensional stability under cyclical heating and mechanical loads,

  • Higher tear and abrasion resistance compared to pure fiberglass fabrics,

  • Optimized weight-to-performance ratio, making it lighter than 100% basalt alternatives,

  • Cost-effective — combining basalt’s durability with the affordability of fiberglass.

IZOLTEX‑75 is the optimal solution for manufacturing thermal curtains, removable insulation covers, flexible protective shields, and hot-area enclosures in metallurgy, power generation, and heavy industry.

How to Place an Order

Ordering our insulation fabrics is simple:

  1. Choose the right fabric for your application — by material, weave type, and temperature resistance

  2. Define the dimensions — specify required width and, if needed, thickness

  3. Contact us via email or phone with your request

  4. Receive a quotation with lead time and delivery options

  5. Confirm your order — we’ll take care of the rest

Understanding the Product Code

Our product codes follow a clear structure

They help identify the fabric type, base material, coatings or treatments, and intended application. This system ensures clarity when selecting between multiple fabric options — especially when dealing with various temperature ranges, chemical resistance, or mechanical strength.

IZOLTEX-XX-Y-Z


XX – fabric type

Y – thickness

Z – width

Sample: IZOLTEX-90-2-1000 |  Insulation Fabric IZOLTEX; Ceramic Yarn, Reinforced with Fiberglass; Thickness 2 mm, Width 1000 mm