PTFE adhesive tape
Polyetrafluoroethylene
Polytetraflourethylene (PTFE) is characterized by the highest chemical resistance. High temperature resistance and very good dielectric strength (even with corona discharge) complete the advantages of this product family. A name also known in the industrial environment is Teflon adhesive tape.
Due to the very smooth and repellent surface, which has a dehesive effect, the films are e.g. in the Mold making as separating film in use. Can also be used as a sliding film to reduce frictional resistance between sliding surfaces or high-quality electrical insulation.
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CMC Type |
Properties and applications |
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| CMC 75100 PTFE adhesive tape Colour: grey Cover: silicone paper Adhesive: acrylic on one side Film thickness: 0,100 mm Total thickness: 0.130 mm |
Chemical resistant PTFE adhesive tape for sealing and as non-stick surface against various adhesive materials, very good corona resistance (insulation).
The film was equipped on one side with a very cohesive, chemically highly resistant, weather-resistant acrylate adhesive, which is also very well suited for long-term applications under maximum temperature load (thermal class H).
PTFE films have an extremely low sliding resistance. The chemically extremely resistant polytetrafluoroethylene film is also used as a seal for containers in the chemical industry or as wall linings in paint shops. In mold making, the PTFE film facilitates the molding of, for example, GRP, CFRP or concrete components. The acrylate adhesive facilitates fixation and provides a reliable hold.
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| CMC 76700 PTFE, glass fabric reinforced Colour: gray Adhesive: polysiloxane on one side Film thickness: 0.125 mm Total thickness: 0.175 mm |
Tear-resistant PTFE film for sliding surfaces with increased mechanical stress or high temperature exposure (film sealers) |
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Die-cut parts made of PTFE - insulating, sliding, sealing
The fluoropolymer material PTFE (e.g. DuPont`s Teflon®) is a high-performance material with unique properties. The anti-adhesive surface enables easy cleaning and prevents adhesion of dirt, resins, oils and varnishes. As an insulating film, polytetrafluoroethylene is characterized by excellent dielectric strength combined with high temperature resistance up to over 200°C. A glass fabric insert additionally gives PTFE very high mechanical strength and makes it more abrasion-resistant.
The chemically neutral and highly chemical-resistant film is relatively soft as virgin PTFE and is ideal for seals in the chemical, automotive, mechanical engineering and food industries. Flat gaskets are used as flange gaskets, for seals in valves and shafts, and as roof sleeves in construction. For faster assembly, CMC Klebetechnik also offers PTFE with a self-adhesive finish. Die-cut parts can thus be fixed in place without additional measures. The non-stick properties are fully retained.
The anti-adhesive property is also exploited in impulse welding. For this purpose, PTFE glass fabric is only equipped with adhesive in strips. In this way, the welding wire is protected from caking by the adhesive-free central area. This increases the service life and performance of the film bag welding equipment. Only PTFE glass fabric films from well-known European manufacturers are used.
CMC Klebetechnik produces die-cut parts from sheet or roll material directly according to CAD data sets. Large cutting plotters, lifting or rotary die-cutting machines are used, depending on the material and number of pieces.
Plastic die-cut parts made of PTFE are mainly used as seals, in electrical engineering as insulation or as sliding surfaces. Self-adhesive industrial die-cut parts from CMC Klebetechnik are usually supplied on a paper backing on a roll. If a high-temperature, chemical-resistant polysiloxane adhesive is used, the film carrier consists of a specially coated polyester film. As a contract manufacturer, we naturally also die-cut films provided by customers or laminate them together with other films.
If high temperature resistance is not required, adhesive tapes and stampings made of UHMW-PE can also be used. This extremely high molecular weight polyethylene has properties comparable to PTFE up to about 100°C.