ePTFE Sealing Tape


About ePTFE Sealing Tape

FLONSEAL™ ePTFE (expanded PolyTetraFluoroEthylene) material is completely chemically inert with a temperature range of -200°C to 230°C (-328°F to 446°F). Since there are no additives or fillers in the raw polymer ePTFE does not age ‘in the field’ and has unlimited shelf life.

Due to its expanded, multi-directional fibre structure FLONSEAL™ ePTFE enjoys excellent compression, adhering perfectly to the contours of the chosen sealing surface. Typical applications for our sealing tape include chemical process plant pipe-work; Oil & Gas pipe flanges where sealing faces can sometimes have quite uneven surfaces; man-way hatches and reaction vessel lids.

As standard, FLONSEAL™ ePTFE sealing tape comes with an adhesive strip on one side for ease of fixing and is supplied on small manageable spools.

Technical Downloads

ePTFE Sealing Tape (FLONSEAL™)

  • Availability
  • Flange Ø vs tape width options
FLONSEAL™ Part No. Dimensions (Wd x thk) Spool L (m)
3.0mm x 1.5mm
5.0mm x 2.0mm
7.0mm x 2.5mm
25, 50
10.0mm x 3.0mm
10, 25
12.0mm x 4.0mm
10, 25
14.0mm x 5.0mm
10, 25
17.0mm x 6.0mm
10, 25
20.0mm x 7.0mm
25.0mm x 8.0mm
5, 10
Flange Ø (mm) FLONSEAL™W (mm)
Less than 50
Less than 200
Less than 600
Less than 1500
10, 12
14, 17, 20, 25

Special sizes & lengths are available upon request.

All sealing surfaces must be free from grease, oil & dust prior to application.

Polyflon Customer Survey Results

100% of customers would recommend Polyflon

We’d like to share our latest customer feedback survey, sent to all customers who bought from Polyflon Technology and Polyflon Medical in 2022. We’re delighted that 100% would recommend us, 98% said our expertise is good/excellent and, for the third year running, 100% rated our product quality as good or excellent! Take a look further […]

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