Burachem Blue 9655/B

Burachem Blue 9655/B

Burachem Blue 9655/B


Burachem Blue 9655/B is a PTFE-based gasket sheet filled with hollow glass microbeads. Burachem B impresses with its high chemical resistance and offers outstanding adaptability compared to similar PTFE-based sheets. Burachem Blue 9655/B seals with relatively low surface pressure, making it especially suitable for applications that offer only low bolt forces.


  • Good adaptability means that only low bolt forces are needed
  • Intended for use in enamel flanges

Operating range

Pressure: p = 55 bar
  • Continuous operation:
    t = -210 °... +260 °C
Recommended surface roughness:
RZ = 12.5 - 50 µm

Chemical resistance: pH = 0 ... 14
Universal chemical resistance, so resistant to most acids and alkalis. Not suitable for use in hydrogenfluoride, fluorine compounds or in molten alkali metals.

Standards and approvals

  • FDA
  • TA-Luft
  • Germanischer Lloyd
  • EC 1935/2004


9655/BP (sheets)
9655/BR (rings and cuts)
9655/BS (segments)

Forms of supply

  • Sheets:
    1.200 x 1.200
    in 1,0 mm thickness
    1.500 x 1.500
    in 1,5 / 2,0 / 3,0 mm thickness
  • Rings and molded parts:
    Standard dimensions as per DIN EN 1514-1 or ASME B16.21