PIT1S-T-RL | 1mil Polyimide (Kapton) Tape | Thin Silicone Adhesive with Release Liner

Harmonization Code : 3919.90.80.99 |   Polyacrylic plates / sheets / film / tape / strip, self-adhesive, in rolls
Main features
  • 1 mil polyimide film
  • Silicone adhesive
  • >6000V breakdown voltage

Product Description

LINQTAPE™ PIT1S-T-RL is the middle ground between normal and ultra thin high temperature tapes. It combines our 1-mil (25.4 micron) thick polyimide film – the generic equivalent of DuPont® Kapton™ HN tape – with a thin 1mil silicone pressure adhesive. This combination makes the PIT1S-T-RL tapes a perfectly balanced product with a total thickness of only 2 mil (50.8µm). Something that ensures the best of both worlds such as excellent adhesion and mechanical strength at high temperatures.

LINQTAPE™ PIT1S-T-RL tapes are high performance, temperature resistant polyimide tapes that use a polyimide film as a backing film. This backing film is the generic version of DuPont's Kapton HN film and is thin at 1mil (25.4µm) yet is just as flame retardant as its thicker counterparts. Laminated to this is a 1mil (25.4µm) thick pressure sensitive silicone adhesive making the total thickness of the polyimide film plus adhesive only 2mil (50.8µm) thick. PIT1S-T-RL remains both electrically and mechanically stable across temperatures ranging from -269°C to 400°C (-452°F to 752°F).

Product Applications

Polyimide tape is widely used in applications requiring high electrical insulation and an excellent balance of thermal, mechanical, chemical and electrical properties. As a base material, polyimide is extremely versatile as it can be die-cut, punched and thermoformed with or without adhesive.

It is extremely well suited, and extensively used for wrapping cable and magnet wire. A further list of applications includes, but is not limited to aircraft and spacecraft wiring, insulation tubing, slot insulation, fiber optics cable, heater circuits, automotive diaphragms and manifolds, high temperature splicing and other applications that can make use of the ultra-thin, high temperature, electrically insulating properties of the PIT1S-T-RL polyimide HN tapes.


  • Cable Wrapping
  • Magnet Wire Wrapping
  • Automotive Manifolds
  • Automotive Diaphragms
  • Flexible Printed Circuits
  • Heater Circuits
  • Aircraft / Spacecraft Wiring
  • Insulation Tubing
  • Slot Insulation
  • Fiber Optics Cable
  • High Temperature Splicing
  • 3D printing ABS plastic

Product Features and Benefits

  • Good Chemical Resistance
  • Mechanically and electrically stable from -269°C to 400°C (-452°F to 752°F)
  • Can be laminated, die-cut, metallized, punched, adhesive coated and thermoformed
  • Insensitive to radiation damage
  • Adheres well to ABS
  • Improved Moisure Barrier

Product Nomenclature

  • PIT: HN Polyimide Tape
  • 1: 1 mil (25.4µm) thick tape
  • S: Silicone adhesive
  • T: 1 mil Thin Adhesive Layer
  • RL: Release liner
Product Family
44 mm 50.8 mm 254 mm 508 mm
33 m

Catalog Product

Unlike other products we offer, the products listed on this page cannot currently be ordered directly from the website.

Technical Specifications

General Properties
Adhesive Layer
Adhesive Layer
A layer that is applied to one surface or both to bind items together and resist their separation
Adhesive Thickness
Adhesive Thickness
Adhesive thickness indicates the thickness of an adhesive layer.

It refers to the adhesive thickness of a single side so for double sided tapes it always needs to be multiplied.
25.4 µm
Chemistry Type Polyimide
The color
Film Thickness
Film Thickness
Film thickness is the thickness of a backing film without taking into account any coatings or adhesive layers. It is measured in micron and the conversion factor to mil is 0.039.
25.4 µm
Release Liner
Release Liner
A paper or plastic-based film sheet used to prevent a sticky surface from prematurely adhering
Single or Double-Sided Adhesive
Single or Double-Sided Adhesive
Describes whether a tape is single- or double-sided. If it is single-sided, it has adhesive only on one side of the backing film. If it is double-sided, then it has adhesive on both sides of the backing film.
Special Layer None
Total Thickness
Total Thickness
Total thickness is taking into account all the films, coatings, adhesives, release liners and special layers and is the maximum thickness of a film or tape.
50.8 μm
Mechanical Properties
Adhesion Strength
Adhesion Strength
Adhesion is the bond strength measurement of a coating to a substrate. When an adhesive is bonded to an item or surface, numerous physical, mechanical and chemical forces come into play, which may have an effect on each other.
12.5 Oz/in
Electrical Properties
Breakdown Voltage
Breakdown Voltage
Breakdown voltage is the minimum voltage necessary to force an insulator to conduct some amount of electricity.
It is the point at which a material ceases to be an insulator and becomes a resistor that  conducts electricity at some proportion of the total current. 

After dielectric breakdown, the material may or may not behave as an insulator any more because of the molecular structure alteration. The current flow tend to create a localised puncture that totally alters the dielectric properties of the material.

This electrical property is thickness dependent and is the maximum amount of voltage that a dielectric material can withstand before breaking down. The breakdown voltage is calculated by multiplying the dielectric strength of the material times the thickness of the film.
6500 V
Thermal Properties
Temperature Resistance
Temperature Resistance
Temperature resistance is the maximum temperature that the material or product can withstand for a period of time.

The temperatures listed should be considered as guidelines for an operating temperature of about 30 minutes. Typically, the material can withstand much longer times at temperatures about 20°C lower and can withstand much higher temperatures for short, intermittent times.
260 ˚C
Other Properties
RoHS Compliant
RoHS Compliant
RoHS is a product level compliance based on a European Union Directive which restricts the Use of certain Hazardous Substances in Electrical and Electronic Equipment (RoHS).

Products compliant with this directive do not exceed the allowable amounts of the following restricted materials: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE), with some limited exemptions
VOC-Free (100% solids content)
VOC-Free (100% solids content)
VOC means Volatile Organic compound. VOCs are evaporating molecules and are literally everywhere around us. Our scents are volatile organic compounds, most of the things that we smell are VOC etc. So what do we mean when we state that a product is VOC free?

A VOC free product, according to the FTC is one where:

1)VOCs have not been intentionally added to the product.

2)The presence of VOCs at that level does not cause material harm that consumers typically associate with VOCs, including but not limited to, harm to the environment or human health.

3)The presence of VOCs at that level does not result in concentrations higher than would be found at background levels in the ambient air.