PTFE Tape with Black Release Liner / Liner-Backed PTFE Tape / PTFE Heat Sealer

Product Specification

1. Product Overview

Nomay PTFE Tape with Black Release Liner, also called liner-backed PTFE tape or black-liner heat sealer tape, is a single-sided silicone adhesive tape supplied with a removable protective liner.

The tape backing is selected as either PTFE-coated woven fiberglass cloth or pure PTFE film. The PTFE working face provides a non-stick, low-friction contact surface, while the liner protects the adhesive before installation and supports handling of converted parts.

“Black” identifies the release liner, not necessarily the PTFE tape body. A black liner does not establish antistatic, conductive, light-blocking or other electrical performance.

The product is intended for compatible equipment covers, heat-sealing surfaces, guide surfaces and converted non-stick parts. The backing, liner construction and dimensions must be matched to the application.

2. Product Construction

PTFE-coated fiberglass version:
- Working surface: PTFE coating.
- Reinforcement: Woven fiberglass cloth.
- Adhesive: Silicone pressure-sensitive adhesive on one face.
- Protective layer: Removable black release liner over the adhesive.

Pure PTFE film version:
- Working surface and backing: Pure PTFE film without woven fiberglass reinforcement.
- Adhesive: Silicone pressure-sensitive adhesive on one face.
- Protective layer: Removable black release liner over the adhesive.

These are alternative backing constructions, not layers combined in every product. The liner is removed before bonding and does not form part of the installed working tape.

For a black release-paper order, specify paper as the required liner material. A black release-film alternative is a separate configuration requiring confirmation; paper and PET film must not be treated as interchangeable without review.

3. Backing & Adhesive System

PTFE-coated fiberglass cloth:
The woven reinforcement supports handling and dimensional stability. Surface texture, flexibility and mechanical performance depend on the selected cloth and coating construction.

Pure PTFE film:
This version contains no woven fiberglass carrier. It can be considered where fabric texture is undesirable, but its finish, conformability and mechanical behavior must be assessed using the selected film grade.

Silicone adhesive:
The pressure-sensitive adhesive attaches the tape to suitable mounting surfaces. Adhesion depends on the substrate, cleanliness, application pressure, temperature, exposure time and mechanical load.

The release liner protects the adhesive before use; it does not determine the service-temperature capability of the installed tape. Liner release behavior must be compatible with the adhesive and the converting or dispensing process.

This is not a silicone-free product. Evaluate compatibility where silicone transfer could affect later coating, printing or bonding.

4. Available Specifications

Nomay's enterprise data for the brown PTFE and silicone adhesive product family are:
- Thickness: 0.1–0.35 mm.
- Width: 0.1–1250 mm.
- Roll length: 10–500 m.
- Tape body color: Brown.
- Adhesive: Silicone adhesive.
- Master roll length: 500 m.

Apply these data only to a matching construction. Pure-film or other-color versions require their own confirmed model data rather than automatic use of the brown product-family ranges.

The enterprise thickness range does not independently define backing thickness or finished adhesive-tape thickness. Confirm the measurement basis before ordering. Specify liner thickness separately; do not assume that the liner is included in the enterprise tape range.

Release liner color: Black.
Release liner material: Specify black release paper for the paper-backed version; any film alternative requires separate confirmation.
Liner thickness and release characteristics: Confirm for the selected converting process.
Supply format: Rolls, sheets, strips or die-cut parts, subject to material and drawing review.

For converted parts, provide dimensions, tolerances, required cut depth, liner retention, part spacing and winding or dispensing requirements where applicable. Product-family limits do not guarantee every combination of tape, liner and finished dimensions.

5. Key Features & Buyer Benefits

- Protected adhesive face: The liner helps prevent accidental contact and contamination before installation.
- Support for converted parts: A suitable liner can retain and organize cut parts until application.
- Non-stick PTFE working surface: Helps compatible process materials release from the equipment contact face.
- Low-friction contact surface: Can reduce sliding resistance on compatible guides and covers.
- Backing selection: Allows buyers to compare a film construction with a woven reinforced construction.
- Defined liner specification: Helps align release behavior and support with manual handling or machine dispensing.

A liner does not by itself guarantee cutting accuracy, cleanroom suitability, repositionability or automatic-dispensing performance. Validate the selected tape-and-liner combination under the intended process conditions.

6. Application Procedure

Before converting, confirm the backing, adhesive, liner material, thickness basis and required part dimensions. Establish cutting settings using the actual laminate rather than a generic liner-thickness assumption.

For kiss cutting, adjust the process so that the required tape layers are cut while the liner remains sufficiently intact to support handling. Check cut quality, liner damage, part lifting and adhesive contamination before production.

Before equipment installation, stop and isolate the machine and allow the mounting surface to cool. Remove old material and clean the surface using a compatible method. Ensure that the surface is dry and free from oil, dust and loose residue.

Peel away the liner without touching or contaminating the adhesive unnecessarily. Position the tape and apply even pressure, avoiding wrinkles, trapped air and excessive stretching. Do not assume the tape can be repositioned after contact without affecting adhesion.

Remove the liner completely before service. It is a temporary handling layer and must not remain in the heated application.

Confirm installation temperature and any conditioning period for the selected adhesive. Trial the installed tape using the actual temperature, dwell time, pressure and contact material.

Store unused rolls or parts with the liner in place, protected from heat, sunlight, moisture and contamination. Confirm storage limits and shelf life for the supplied model.

7. Application Industries

Relevant industries include:
- Industrial tape converting and die cutting.
- Packaging machinery manufacturing and maintenance.
- Flexible-packaging and plastic-film processing.
- Industrial equipment assembly and guide-surface maintenance.

Industry suitability depends on the selected construction and process. Food-contact, medical, battery, semiconductor and electrically rated applications are not established merely by the presence of PTFE or a black liner.

8. Application Scenarios / Problems Solved

Adhesive exposed during storage or handling:
The removable liner covers the adhesive until installation, helping reduce unwanted contact with dust, tools and adjacent parts.

Small parts difficult to organize:
A suitable liner can retain converted pads or strips for handling and identification. Part spacing, cut depth and release behavior must match the intended workflow.

Film sticking to a heat-sealing surface:
After liner removal and installation, the PTFE working face can help compatible packaging film release. Check sealing quality under the actual heating and cooling cycle.

Excessive sliding resistance on guides:
The PTFE contact face can reduce drag where the equipment design and contact material are suitable. Evaluate adhesion and wear on the intended surface.

Confusion between black liner and black tape:
Specify tape body color and liner color separately. This prevents ordering a black-body or conductive tape when only a black protective liner is required.

Liner tearing or parts lifting during converting:
Review liner material, thickness, release characteristics and cutting settings together. Changing only the liner color does not resolve a mechanical or release-performance mismatch.

9. Performance & Operating Conditions

Temperature:
Nomay's enterprise range for the brown PTFE and silicone adhesive product family is 260–300°C. It does not establish a continuous rating, a short-term exposure duration or a temperature rating for the liner.

Confirm continuous temperature, peak temperature and exposure time for the selected model after liner removal. Do not interpret 260°C as an established continuous-use limit or 300°C as unrestricted service capability.

The heater setting, tape contact temperature and adhesive-interface temperature may differ. Evaluate the actual thermal cycle, pressure, contact duration and mechanical conditions.

Peel strength:
The enterprise product-family range is 0–1200 g, as supplied. Confirm the selected model value, specimen width, peel angle, test speed, substrate and conditioning. This describes adhesive testing, not the force required to remove the liner.

Liner release:
Liner release force is a separate characteristic. It must support the intended converting and application process without unintended part lifting or difficult separation.

Chemical and mechanical conditions:
The PTFE face, adhesive and exposed edges can respond differently to process chemicals and wear. Test the complete installed construction with the actual contact materials and cleaning method.

No ESD, conductivity, dielectric rating or food-contact suitability is established by liner color. Obtain model-specific evidence where such performance is required.

10. Comparison & Selection Guide

Liner-backed versus self-wound PTFE tape:
Consider liner-backed material when parts need to remain supported before application or the adhesive needs protection during converting. Consider self-wound material where direct roll installation meets the process requirements.

PTFE-coated fiberglass versus pure PTFE film:
Consider woven reinforcement where dimensional support is useful. Consider pure film where fabric texture or a fiberglass carrier is unsuitable. Compare actual model data rather than assuming one construction is always stronger or more wear resistant.

Release paper versus release film:
Specify the required liner material according to cutting, handling, storage and dispensing conditions. Evaluate stiffness, thickness, tear behavior and release characteristics. A film liner is not automatically a substitute for release paper.

Black liner versus black tape body:
Choose this product when a black protective liner is required. If the working tape itself must be black or electrically dissipative, select and validate a separate specification.

Thickness selection:
Compare tape thickness on the same measurement basis and keep liner thickness separate. Additional laminate thickness can affect cutting settings even though the liner is removed before service.

11. Technical Notes + FAQ

Technical notes:
The approved specification should identify the backing, adhesive, tape body color, liner color, liner material, thickness measurement basis, finished dimensions and supply format. For converted parts, include tolerances and liner-retention requirements.

Q: Is the tape body black?
A: Not necessarily. Black refers to the liner. The confirmed brown product-family version has a brown tape body; other versions require matching model confirmation.

Q: Does the black liner make the tape antistatic?
A: No. Liner color does not establish ESD or conductive performance.

Q: Must the liner be removed before heating?
A: Yes. Remove it before bonding and service. It is not part of the installed high-temperature construction.

Q: Is tape thickness the same as tape-plus-liner thickness?
A: No. State the tape measurement basis and liner thickness separately. The supplied enterprise range must not be assumed to include the liner.

Q: Is adhesive peel strength the same as liner release force?
A: No. They measure different interfaces and require separate test definitions.

Q: Can the material be kiss-cut while retaining the liner?
A: Submit the part drawing and processing requirements. Suitability depends on the tape-and-liner combination and validated cutting settings.

Q: Can black PET film replace black release paper?
A: Only after specification review and confirmation. Liner material can change handling, cutting and release behavior.

Q: Can the tape run continuously at 300°C?
A: Continuous operation at 300°C is not established by the enterprise range. Provide the actual temperatures and exposure conditions for model review.

Q: Will the tape remove without adhesive residue?
A: The liner protects the adhesive before use but does not guarantee clean removal after service. Evaluate the selected tape on the intended substrate.

12. Inquiry CTA

Send Nomay your application, mounting substrate, process temperature, exposure time, thickness, width, roll length, quantity and destination country.

Specify the required backing, tape body color, black liner material and supply format. For die-cut parts, attach a dimensioned drawing and include tolerances, cut-depth requirements, liner retention, part spacing and dispensing direction where relevant.

Nomay will review the information to confirm the suitable model, specifications, minimum order quantity and price, and identify a sample configuration for converting and application evaluation.