Amber Polyimide Tape (Golden PI Tape / Brown PI Tape) – Single-Sided Translucent

Product Specification

1. Product Overview

Nomay Amber Polyimide Tape combines translucent amber PI film with silicone pressure-sensitive adhesive on one side. Common names include golden PI tape, brown PI tape and amber polyimide adhesive tape.

This product family focuses on electrical insulation, coil wrapping, battery-tab protection, cable wrapping and custom die-cut insulation parts. The translucent appearance helps operators check placement, component edges and covered areas where visibility through the selected construction permits.

The specifications below apply to the matching single-sided PI film and silicone adhesive construction. Acrylic adhesive versions can be evaluated separately and require their own specifications.

2. Product Construction

Backing Material: Translucent polyimide film
Adhesive: Silicone pressure-sensitive adhesive
Adhesive Side: Single-sided
Color: Amber / Golden / Brown
Standard Format: Self-wound roll
Optional Formats: Slit rolls, liner-backed adhesive sheets and custom die-cut parts

Finished tape thickness consists of the PI backing and adhesive layer. A removable release liner is excluded unless specifically stated.

Film shade and apparent transparency can vary with backing thickness, adhesive coating, lighting and the number of overlapping layers. Amber PI film is not the same as colorless optical-grade PI film.

3. Key Features and Buyer Benefits

Translucent Appearance and Visual Placement
The amber film can help operators identify component edges, tape position and overlap during application. Visibility depends on the construction and underlying surface; no fixed optical-transmission value is claimed.

Thin Electrical Insulation
The PI backing provides a dielectric layer for assemblies with limited space. Select backing thickness and the complete insulation construction against the electrical requirement.

Wrapping and Conformability
Slit rolls can be selected for coil, lead and cable wrapping. Match film thickness and winding tension to the component geometry without overstretching the tape.

Thermal-Process Capability
Silicone adhesive constructions can be selected for suitable elevated-temperature processes. Confirm the complete temperature profile and exposure time.

Pressure-Sensitive Placement
The adhesive side supports direct positioning and fixation when compatible with the bonding surface.

Custom Converting
Narrow slit rolls, liner-backed material and die-cut shapes support different manual or automated assembly methods.

4. Available Specifications

Thickness: Nomay's stated range is 0.012–0.1 mm, with thicker constructions available on request. Confirm whether the requested value refers to PI backing thickness or finished tape thickness.

Backing Thickness: Selected according to finished thickness, flexibility, electrical performance and handling requirements. Confirm backing and adhesive thicknesses together.

Width: 0.1–1040 mm, depending on construction and converting requirements. Narrow slit widths require confirmation of tolerance, winding and handling suitability.

Finished Roll Length: Customized according to thickness, width and winding requirements. Please specify the required length.

Master Roll Length: Approximately 3000 m, 1000 m or 600 m, matched to the selected thickness and construction. These lengths are not interchangeable across all specifications.

Color: Brown / Amber; golden describes the appearance of selected amber shades.

Peel Adhesion: Nomay's stated range is 10–1000 g. The force-unit convention, specimen width and peel-test conditions must be confirmed before using this range as an acceptance specification.

Temperature Resistance: 260–300°C across selected silicone constructions, subject to confirmation of exposure time and process conditions. Continuous service temperature must be specified separately.

Supply Formats:

• Self-wound rolls

• Custom slit rolls

• Release-liner-backed rolls

• Adhesive sheets

• Custom die-cut insulation parts

Thickness, width, roll length and adhesive performance must be confirmed as a compatible specification combination.

5. Adhesive and Process Selection

Silicone Adhesive
Select the silicone construction according to the required temperature, bonding surface, wrapping conditions and service life. Suitability for a brief thermal process does not establish long-term insulation performance at the same temperature.

For temporary use, confirm removal behavior on the actual surface. For permanent insulation, evaluate adhesion and electrical performance after aging.

Acrylic Adhesive Alternative
An acrylic version may be appropriate where a different bonding or contamination profile is required. It must not inherit the silicone construction's temperature or peel-adhesion range.

Silicone-Sensitive Processes
Where subsequent coating, bonding or contamination control matters, assess the complete tape and liner. A non-silicone adhesive chemistry alone does not establish that all components and converting steps are silicone-free.

6. Application Procedure

Step 1: Identify the insulation, wrapping, fixation or protection function.

Step 2: Specify the component, bonding substrate, working voltage and service conditions.

Step 3: Confirm backing thickness, finished thickness, width, roll length and any liner or die-cut requirements.

Step 4: Clean and dry the bonding surface using a process compatible with the component.

Step 5: Apply with uniform pressure or controlled winding tension. Use the translucent appearance to check positioning where visible. Avoid wrinkles, trapped air, lifted edges and excessive stretching.

Step 6: Set overlap and layer count according to the assembly's insulation design; do not rely on appearance alone to confirm adequate coverage.

Step 7: Validate the finished component under the intended electrical, thermal, mechanical and environmental conditions before mass production.

7. Application Industries

• Electric motors and coil components

• Transformers and electrical equipment

• Battery and energy-storage assembly

• Wire, cable and sensor assembly

• Automotive electronics

• Industrial controls

• Electronic component manufacturing

• Electrical insulation converting

• Precision die-cut manufacturing

The selected construction must meet the requirements of the actual component and complete assembly.

8. Application Scenarios

Motor-Coil Wrapping
For selected coil wrapping, lead fixation and sensor-protection tasks. Confirm continuous temperature, winding tension, insulation requirements and adhesive aging.

Transformer Insulation
For selected interlayer, lead or component insulation. Evaluate the winding design, impregnation varnish, curing conditions and compatibility with other insulating materials.

Battery-Tab and Busbar Protection
For external insulation around tabs, busbars and nearby conductive components. Confirm voltage, puncture resistance, edge protection and adhesive durability. This tape is not an internal battery separator or a thermal-runaway barrier.

Wire and Cable Wrapping
For thin insulation and fixation around selected wires, leads and sensors. Confirm flexibility, overlap, bending, vibration and environmental exposure. It is not automatically a waterproof joint seal.

Component Positioning
For securing selected leads and small components during assembly. The translucent film can assist placement checks where the covered feature remains visible.

PCB Masking
Suitable silicone constructions can also be evaluated for PCB solder masking and gold-contact protection. Confirm flux compatibility, temperature, dwell time and removal performance. For dedicated solder-masking requirements, specify the process when requesting a model.

Custom Die-Cut Insulation
For strips, tabs, rings and shaped adhesive parts supplied to a drawing. Liner-backed adhesive sheets are different from non-adhesive PI film sheets.

9. Performance and Operating Conditions

Temperature
The 260–300°C range must be matched to a selected model and exposure duration. It does not establish a continuous service rating or insulation-system thermal class.

Electrical Performance
Dielectric strength and breakdown voltage depend on the film grade, backing thickness, adhesive and test conditions. Verify the finished assembly's clearances, overlap, edge protection and working-voltage requirements.

Mechanical Performance
Wrapping applications may require tensile, elongation, bending or puncture evaluation. Avoid excessive tension that could thin, damage or lift the material.

Peel Adhesion
Specify substrate, specimen width, peel angle, speed, dwell time and conditioning. Do not interpret the stated g range as g/25 mm or convert it to N/25 mm without a confirmed test basis.

Chemical Compatibility
Test compatibility with impregnation varnishes, oils, cleaning agents and other process materials using the selected construction.

Aging and Removal
Permanent applications require aging assessment. Temporary applications require removal and residue evaluation. Neither outcome is established by amber color or silicone chemistry alone.

10. Special Versions and Customization

Flame-Retardant Requirements
Versions for specified flame-performance requirements can be evaluated on request. Confirm the exact material construction, test standard and applicable results before making a compliance claim.

ESD Requirements
A separately selected ESD version can be evaluated where the process specifies unwind or removal voltage, resistance or charge decay. Standard amber PI tape is not automatically ESD-safe.

Converting Requirements
Specify slit tolerance, die-cut geometry, liner release, winding direction and packaging where these affect dispensing or placement.

11. Comparison and Selection Guide

Amber PI vs. Brown PET
Both may have a similar color, but use different backing materials. Choose using the verified thermal, electrical and adhesive requirements.

Amber PI vs. Colorless PI
Choose amber PI for suitable insulation and wrapping tasks. Evaluate colorless PI separately where high clarity or color-sensitive optical inspection is required.

Amber PI vs. Gold-Finger Masking PI
Amber describes the appearance; gold-finger masking describes a process requirement. Constructions may overlap, but soldering conditions and removal performance determine suitability.

Silicone vs. Acrylic PI
Select by substrate, temperature, service life, contamination and bonding requirements rather than a general adhesive label.

Adhesive PI Tape vs. Pure PI Film
Choose adhesive tape for pressure-sensitive positioning. Choose non-adhesive film when separate fixation or lamination is required.

12. Send Your Application Requirements

For product selection, sample evaluation and quotation, please provide:

• Application and insulated component

• Bonding substrate and surface condition

• Silicone or alternative adhesive requirement

• Continuous operating temperature, peak temperature and exposure time

• Heating cycles and expected service life

• Backing thickness, finished thickness and tolerances

• Width and finished-roll or master-roll length

• Working voltage and dielectric test requirements

• Winding tension, overlap, flexibility or puncture requirements

• Peel adhesion and test method

• Chemical and environmental exposure

• Permanent bonding or temporary removal requirement

• Visibility or amber-shade requirements, if relevant

• Liner, die-cut drawing and dimensional tolerances

• Order quantity and destination country

• Any required flame-performance, ESD, testing or certification standard

Nomay will confirm the appropriate construction, technical specification, sample requirements, minimum order quantity and quotation. Required testing or certification can be arranged according to the agreed standard and product scope, with completion requirements confirmed before order acceptance.