Our PTFE Thread Seal Tape Production Process
At Aigle Plast, we pride ourselves on delivering premium-quality PTFE thread seal tapes. Our production process combines precision engineering, high-grade materials, and state-of-the-art machinery to ensure every roll meets strict quality standards.
Step 1: Raw Material Preparation
We begin with 100% pure PTFE fine powder resin, the foundation of our superior tape. Each batch is carefully weighed to match the required density, thickness, and performance properties. This ensures consistent quality across all production runs.
Step 2: Blending with Lubricant
A specialized liquid lubricant (commonly naphtha or equivalent) is added to the resin. The mixture is processed in a high-efficiency PTFE powder mixer, ensuring complete and uniform blending. This step is essential for smooth extrusion and achieving a flawless tape surface.
Step 3: Pre-forming
The blended material is loaded into a hydraulic pre-forming press where it is compressed into solid cylindrical billets under high pressure. This pre-form shape optimizes the material for the next stage—ram extrusion.
Step 4: Ram Extrusion
Each billet is fed into a PTFE ram extruder machine. Here, the material is forced through a precision die, producing a continuous, thin PTFE film. This raw “tape-like” strip will form the base of our finished product.
Step 5: Lubricant Removal (Oven Drying)
The extruded film is passed through a controlled-temperature drying oven to remove all traces of the lubricant. This process is carefully regulated to prevent premature sintering, preserving PTFE’s natural flexibility and sealing properties.
Step 6: Calendering & Stretching
Using precision calender rollers, the tape is adjusted to the exact required thickness and width. A controlled stretching process follows, enhancing density, tensile strength, and overall tape durability—key for performance under demanding sealing conditions.
Step 7: Slitting & Winding
The wide PTFE sheet is fed into automated slitting machines, which cut it into standard or custom widths (e.g., 12mm, 19mm). Each strip is then wound onto durable plastic spools or cores, ready for branding and packaging.
Why Choose Aigle Plast?
- High-Purity Materials: Only 100% pure PTFE resin is used for superior sealing performance.
- Precision Manufacturing: Advanced machinery ensures uniform thickness, width, and density.
- Custom Solutions: Standard and customized widths, densities, and spool options available.
- Quality Consistency: Stringent controls at each stage for reliable results every time.
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Raw Material Preparation
We start with 100% pure PTFE fine powder resin, which forms the foundation of our high-quality tape. Each batch is carefully measured to ensure the correct density and thickness, guaranteeing consistent performance across all rolls.
Blending with Lubricant
The PTFE powder is mixed with a specialized liquid lubricant using a high-efficiency PTFE mixer. This step ensures a uniform mixture that facilitates smooth extrusion and a flawless surface finish for the tape.
Pre-forming
The blended material is compressed into solid cylindrical billets using a hydraulic pre-forming press. This pre-forming step shapes the material for the extrusion process, making it easier to handle and process.
Ram Extrusion
Billets are fed into a PTFE ram extruder, where they are pushed through a precision die to form a continuous, thin PTFE film. This “tape-like” strip serves as the base material for the final product.
Lubricant Removal (Oven Drying)
The extruded film passes through a controlled-temperature drying oven to remove all lubricant residues. Proper drying maintains the PTFE’s flexibility and ensures optimal sealing properties without premature sintering.
Calendering & Stretching
The tape is refined using precision calender rollers to achieve exact thickness and width. Controlled stretching enhances density, tensile strength, and durability, which are critical for high-performance sealing applications.
Slitting & Winding
The wide PTFE sheet is cut into standard or custom widths using automated slitting machines. Each strip is then wound onto durable spools, ready for labeling, packaging, and distribution.
Shrink Wrapping
The finished PTFE tape rolls are placed into a shrink-wrapping machine, where they are tightly sealed in protective film. This process ensures product cleanliness, prevents damage during transport, and provides a professional presentation, ready for storage, distribution, or retail display.