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High-quality self-adhesive sealing tapes made of expanded PTFE and graphite. POWERflon BG, Uni, HD, FR, and POWERgraf Cor – sealing uneven flanges with low torque.
These values are approximate and may be influenced by other factors. We will be happy to consult with our expert to make sure you make the right choice.
Self-adhesive flange tape made of multidirectionally oriented expanded PTFE.
Universal flange tape with self-adhesive layer of expanded, unidirectionally oriented PTFE.
Self-adhesive flange tape made of expanded unidirectional PTFE with higher specific gravity.
Self-adhesive tape made of expanded PTFE with higher specific gravity and stabilizing fillers.
Thin knurled tape made of expanded graphite.
Flange self-adhesive sealing tapes are the ideal solution for sealing flange joints without the need for cutting or custom die-cut gaskets. The POWERflon series tapes are made from expanded PTFE – either unidirectionally or multidirectionally oriented – and differ in specific weight, stiffness, and resistance to cold flow. For high-temperature applications and sealing surface repairs, we supply the ribbed graphite tape POWERgraf Cor. The self-adhesive layer allows for precise and quick installation even on irregular and damaged flanges.
We will help you choose the right type of tape for your flange type, medium, and operating conditions.
Multidirectionally oriented ePTFE (type BG) is uniformly flexible in all directions – it adapts better to the irregularities of the flange and exhibits the lowest cold flow. Unidirectional ePTFE (types Uni, HD, FR) is stiffer along the load axis, making it suitable for standard flange joints where precise tightening and residual thickness of the seal are emphasized.
Yes – this is one of the main advantages of ePTFE tapes. In particular, type POWERflon BG due to its high adaptability can seal flanges with uneven surfaces or minor damage, and this at a significantly lower tightening torque than traditional flat seals. POWERflon HD then allows sealing of irregularities while maintaining residual thickness.
Expanded PTFE tapes are thermally stable in the range of approximately −200 °C to +260 °C (short-term up to +280 °C). Type POWERflon FR with inorganic fillers retains its properties even under cyclic thermal stress. The graphite tape POWERgraf Cor is suitable for temperatures up to +550 °C (and higher in an inert atmosphere).
POWERgraf Cor is a corrugated film made of expanded graphite primarily intended for production – it serves as raw material for pressed sealing rings and spiral-wound seals. It can be used on-site to seal dividing planes or to refurbish the sealing layer of comb seals. The corrugation increases the strength and ductility of the film, making it easier to process and shape.
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