Rubberised Cork Strips

cork-strips
Products

What is Rubberised Cork Strip?

Rubberised Cork Strips are specially designed sealing materials widely used in power and distribution transformers for leak-proof flange sealing applications. Manufactured by combining high-quality rubber polymers with premium cork granules, these strips provide excellent compressibility, recovery and long-lasting sealing performance under varying operating conditions. Their superior resistance to transformer oil, moisture and ageing makes them an ideal choice for transformer gasketing and industrial sealing applications.


Compared to conventional sheet cutting, Rubberised Cork Strips help reduce material wastage and improve installation efficiency. Available in continuous rolls and customized widths and thicknesses, they offer flexibility for different transformer tank flange designs and sealing requirements.

Key Features
Lowest lateral expansion

Excellent oil and transformer fluid resistance

High operating temperature range

Leak-proof sealing performance

Property can be tailored as per application

High compressibility and flexibility

Property can be tailored as per application

Superior recovery after compression

Material Specifications
Property Specification
Base Material Rubber & Cork Granules
Rubber Type Nitrile / Synthetic Rubber
Cork Quality Fine Grade Natural Cork
Composition Rubber Bonded Cork Material
Surface Finish Smooth & Uniform
Flexibility High
Compression Strength Excellent

Storage & Standards​​

Storage

Standards

Technical Specification​
Property Specification
Material Rubberised Cork Compound
Available Form Strips / Rolls
Color Natural Brown / Black
Thickness Range 1 mm to 25 mm
Width Range Custom Sizes Available
Density As per IS / ASTM Standards
Temperature Resistance Suitable for Industrial Applications/td>
Oil Resistance Excellent
Compressibility High
Recovery Excellent

Applications & Industries​​

Applications

Industries

Why Choose Pristine Technologies & Industries
for Rubberised Cork Strips?​

01

Low side flow under compression

02

Suitable for power and distribution transformers

03

Available in customized sizes and thicknesses

04

Reduces wastage and improves cost efficiency

05

Reliable transformer flange sealing

06

High-performance gasket sealing

Pristine Technologies & Industries

Looking for high-quality rubberised cork strips for transformer sealing applications? Contact our expert team