With over 4.5 decades of market presence, Dup Pont has set the standards of Kapton Polyimide adhesive tapes based o high performance, reliability and durability. Different combinations of electrical, thermal, chemical and mechanical properties of these tapes exhibit tolerance to extreme temperatures, vibrations and other challenging environments.
Kapton Tapes – RoHS compliant
Made from Kapton HN film with Silicone adhesive, the 1 Mil Kapton POLYIMIDE TAPE is used in applications operating at temperatures as low as -269°C (-452°F) and as high as 260°C (500°F).
The following are the umpteen applications of these adhesive tapes.
- Manufacturing of semiconductors
- Used for etching purposes
- As an insulator for electrical circuit board
- Powder coating at high temperatures
- Manufacturing of fiber optic cables
- Used during wave soldering for circuit board assembling
- Automotive sensors
Conductive Tapes (Copper Conductive Tapes): RoHS Compliant
As the name suggests, these tapes provide a very low electrical resistance and hence are highly conductive in nature. Conductive types are made using a copper foil with an acrylic conductive adhesive. Also identified as EMI Shielding Tapes, these are an ideal choice for grounding the floor and in building ground systems. To ensure ease of handling and cutting, these conductive tapes come with a paper liner. The physical attributes of the tapes come with a thickness 1.5 mm, with 1.25 mm of adhesive withstanding temperatures of 155ºF.
The following are the applications of these conductive adhesive tapes.
- Used for Cable Shielding
- Used for Grounding
- Provides reliability of point to point electrical contact
- Shielding applications conforming to RFI/EMI in the electrical & electronics industry
- To drain Static charge
The following are the two different types of Conductive Adhesive Tapes.
- Conductive Grid Tapes
- Copper Conductive Tapes
Conductive Grid Tapes:
These are triple layered conductive tapes, available on 3” cores; with a conductive grid sandwiched between two static dissipating co-polymer layers. These layers provide a double-coating anti-static non-sparking surface on the interior and exterior, preventing shedding, cracking, chipping or being rubbed off. These tapes conform or at times even exceed the ANSI ESD-S20.20 and ESDA Standard 1.1-2006 stipulations.
The following are the varied applications of these grip tapes
- Packaging applications in which EMI Shielding is necessary
- To seal ESD packaging and containers
- To Secure or bundle IC DIP tubes
- Best for Tape dispensing, where the voltage generated by unrolling will effectively be reduced to zero
- Used as ESD symbols to spread ESD awareness
Conformal Coating Tapes – RoHS compliant
- The Conformal Coating Tapes as their name suggests finding their purpose to prevent migration of conformal coatings to components, since many components and printed circuit board locations must remain uncoated. These tapes are made of 1 mil polyester film with 2 mil mustard colored rubber resin adhesive.
- The Conformal Coating Tapes are the perfect choice to be used in connector locations or insertion areas for interchangeable devices to remain free of the protective coating.
- Being resistant to very high temperatures during the conformal coating process, these tapes are silicone free. Hence these do not leave any silicone residue, withstanding a temperature of up to 325ºF.
- Applying a protective layer to the printed circuit board and components is a process adopted to prevent degradation in electrical performance, to counter environmental stresses during specific operating conditions.
- Humidity is identified as the most prevalent and most damaging environmental stress, which can drastically lower insulation resistance between conductors, accelerate high-voltage breakdown and corrode conductors.
- The Conformal coatings also play a role in protecting both the printed circuit boards and components from airborne or solvent borne contaminants.