IZOPACK
Twisted Cords

Twisted Insulation Cords — Flexible and Cost-Effective Thermal Sealing

Twisted insulation cords made from heat-resistant fibers such as glass, ceramic, or basalt.
Thanks to their simple twisted construction, these cords offer outstanding flexibility and easy handling. A key advantage is their universal applicability — users can untwist and re-twist them to match the exact diameter needed for their specific sealing gap. Twisted cords provide a cost-effective solution for thermal insulation and light-duty sealing tasks in industrial environments. While not as mechanically strong as braided cords, they are ideal for applications where price, adaptability, and thermal resistance are the top priorities — such as insulation packing, sealing irregular joints, or wrapping around pipes and cables in furnaces, boilers, and thermal equipment. They are also widely used for sealing air ducts and ventilation systems, where easy installation and thermal protection are required.

Twisted rope IZOPACK instal

TWISTED CORDS - Product Line

Explore the complete range of Twisted Cords designed for versatile thermal insulation and cost-effective sealing.
Instead of traditional property tables, we present key performance data as clear, easy-to-read diagrams — making it simple to compare cord types and choose the most economical and adaptable solution for your application.

Below are the available models of Twisted Cords, each listed with their key technical characteristics: composition, short-term and continuous temperature resistance, thermal conductivity, mass loss on ignition, and cross-sectional dimensions. This format enables quick comparison and helps you select the most practical and cost-effective cord for your thermal insulation or sealing needs.

Cord Type

Composition

Temp.

CT | ST

TC

MLI

Size

Pic.

IZOPACK-50T

Fiberglass

+550 | +650

0,04

2

4-20

IZOPACK-70T

Basalt

+700 | +900

0,04

2

4-20

IZOPACK-90T

Ceramic + Fiberglass

+850 | +1200

0,05

18

4-20

IZOPACK-120T

Ceramic + Inconel

+1200 | +1430

0,06

18

4-20

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 (%)

Size – Cross-sectional dimensions (mm)

TECHNICAL PARAMETERS

operating temperature

Twisted Rope IZOPACK-90T

FIBER STRENGHT VS. TEMPERATURE

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.

Technical specifications are for reference only. Actual performance may vary depending on chemical exposure, temperature shocks, and mechanical loads such as compression or friction. Values are based on ideal lab conditions — always assess real application factors before use.

How to Place an Order

Ordering our insulation cords is simple:

  1. Choose the right cord type for your application
  2. Contact us via email or phone
  3. Receive a quotation with lead time and delivery options
  4. Confirm your order — we’ll take care of the rest

Understanding the Product Code

Our product codes follow a clear structure that helps identify the packing type, base material, treatment, and application area.

Twisted Rope Code Structure

Sample: IZOPACK-90T d20 |  Insulation Cord IZOPACK; Twisted Type; Cross-Section Dimention 20 mm