The use of a polyimide substrate, permits the availability of an adhesive tape that can be used short term at temperatures approaching 250°C as occurs during PCB wave solder processes. Other applications include paint spray protection, PCB masking and for electrical insulation during production.  Many grades are available with a choice of silicone (most common) or acrylic adhesives. Substrate thickness is usually 25um although 13um and 50um are also common. Double sided and original Kapton® versions are available from stock.

Heat-resistant Nomex® aramid is used as a substrate for tapes requiring electrical insulation in high temperature environments. Thin backing provides minimum insulation build-up for wrapping of transformer conductors, motor coils and battery electrode insulation. Acrylic and silicone adhesive coated tapes are available in several thicknesses.

PET tapes are specified for electrical insulating applications requiring a thin, durable tape with high dielectric strength. They are resistant to chemicals, solvents, moisture and abrasion. 
Polyester tapes come in a choice of pressure sensitive adhesives: rubber thermoset, acrylic, silicone and silicone/rubber blends to meet specific requirements:

• Acrylic for long term holding and clarity,
• Silicone for high temperature performance and clean removal,
• Specially-formulated rubber for resistance to plating chemicals. Many other variations of thickness, colours and surfaces are available. Yellow and clear are the most common tape used.

Glass cloth tapes offer excellent abrasion resistance and mechanical properties as well as high tensile strength and extreme temperature resistance. Service temperature ranges from -73°C to +260°C. Whilst highly conformable and flexible, their exceptional tensile strength make these tapes ideal for wrapping of electric coils, transformer windings and motor coil ends. Available in three adhesive types: class B (rubber thermoset), class F (acrylic) and class H (silicone) 

Crepe paper tapes are used in numerous  electrical applications  for wrapping and masking. Typical usage is coil and transformer strip insulation where a tough and conformable tape is required. Natural rubber adhesive which provides good initial adhesion is the usual option.

Anti-static tapes (ESD) are used where there is a need to eliminate the effect of static in critical situations. These tapes are produced using polyester or a polyimide substrate which might be metallized. A conductive adhesive is also used to improve the ESD effect.

Many electronic manufacturers and electrical appliance producers, find it convenient to receive  die-cut  parts mounted on a roll with a split release liner. This method of parts delivery permits automation and ease of handling, reduces wastage and simplifies stock counting.  Both dry and adhesive coated parts can be produced mounted on a roll.

Kapton^® masking dots are used extensively for the masking of holes, connectors and other parts to protect these areas during the wave solder process. Polyester masking dots are used for protection during paint spraying. There are other masking dot materials available for various applications. Dots are generally produced 2,000 per roll with a split backing for easy release. Diameters range from 6mm increasing in 1mm increments up to 12mm, larger sizes can also be obtained. Strips and shapes are made to order. Masking dots and strips are produced with silicone adhesive coating.

We provide below a comparative chart illustrating the many different types of electrical adhesive tape that Pronat offers. The majority of electrical tapes have either, silicone, acrylic or rubber thermosetting adhesive . All Stock of tapes are held in log form, we can therefore supply our customers with their preferred width of tape, with the best possible shelf life.