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Expanded PTFE Tape

Self-Adhesive Expanded PTFE Gasket Tape & Joint Sealant Factory

We manufacture high-grade expanded ptfe tape and form-in-place expanded ptfe gasket tape engineered from 100% pure virgin PTFE resins. Featuring a strong pressure-sensitive self-adhesive backing strip with easy-peel release paper, our ePTFE joint sealant tape enables rapid, hassle-free installation on vertical, overhead, or large complex flange surfaces. Unlike standard cut gaskets, this continuous flexible sealant tape eliminates scrap material, readily conforms to pitted or damaged sealing faces, and resists creep relaxation under severe industrial operating conditions.

Self-Adhesive Strip (Peel & Stick) 100% Pure Virgin ePTFE Industrial Flange Joint Sealant Zero Waste / Cut to Length

Technical Specifications

Physical and thermal operating parameters for ePTFE gasket tape.

Parameter Specification Value
Material Composition 100% Virgin Expanded PTFE (ePTFE)
Adhesive Layer Pressure-sensitive self-adhesive with protective paper back
Temperature Range -240°C to +260°C (Short term +315°C)
Chemical Resistance pH 0 – 14 (Universal chemical inertness)
Operating Pressure Full vacuum up to 200 bar (20 MPa)
Apparent Density 0.65 – 0.85 g/cm³

Standard Supply Dimensions

Available stock width, thickness, and roll length configurations.

Width × Thickness Standard Roll Lengths
3mm × 1.5mm / 3mm × 2mm 25m / 50m Spools
6mm × 3mm / 7mm × 2.5mm 10m / 15m / 25m Spools
10mm × 3mm / 12mm × 4mm 10m / 15m Spools
14mm × 5mm / 17mm × 6mm 5m / 10m Spools
20mm × 7mm / 25mm × 8mm 5m / 10m Spools
40mm × 10mm / Custom Sizes Custom spooling upon request

Important Product Distinction: Heavy-Duty Flange Gasket Tape vs. Thread Seal Tape

Please note that our expanded ptfe gasket tape is a heavy-duty, highly compressible joint sealant designed specifically for flat pipe flanges, vessel lids, and large equipment joints. It comes equipped with a pressure-sensitive self-adhesive backing for easy positioning. It is NOT thin plumber's thread tape (unsintered PTFE thread seal tape / raw tape used for pipe thread wrapping).

Key Advantages of Self-Adhesive Expanded PTFE Gasket Tape

Fast & Easy Installation
The self-adhesive strip holds the gasket tape securely in place on vertical, overhead, or wind-exposed outdoor flanges during assembly.
Zero Scrap Material Loss
Simply unroll, stick along the bolt circle, overlap at the ends, and cut. No costly off-cuts or stamped center waste compared to full sheet gaskets.
Seals Fragile & Damaged Flanges
Conforms effortlessly to glass-lined steel, plastic, FRP, graphite, and pitted metallic flanges under low bolt torque loads.
High Creep Resistance
Advanced expanded fibrous network prevents cold flow and thermal cycling retorque issues commonly found in conventional PTFE.

Recommended Application Fields

Versatile form-in-place sealing for complex industrial systems.

Glass-Lined & FRP Vessels
Ideal for delicate equipment where high bolt load could crack glass or composite flanges.
Large Diameter Ducting
Seals massive round or rectangular fume exhaust ducts, blowers, and air handling housings.
Chemical Reactor Manholes
Provides instant leak-tight sealing on inspection covers, manways, and acid tank lids.
Heat Exchangers & Pumps
Fits irregular split-case pump housings and heat exchanger cover plates without custom tooling.

Inquire Wholesale Factory Pricing for Expanded PTFE Gasket Tape

Looking for bulk rolls of self-adhesive ePTFE tape or customized width/thickness dimensions? Contact our factory sales team for direct pricing and free samples.

Request Spool Quote & Samples →