Non Asbestos Y Grade Gaskets 3mm Thick (Full Face)


AF300 non-asbestos gaskets are manufactured from Corseal's own medium-duty gasket material.  Avaialble in 1.5mm and 3mm thicknesses.

Ratings: ASA150, ASA300, PN16

Owing to its natural rubber content, the sheet is flexible and adapts more easily to curvatures and irregularities of the flanges. Specially recommended for water and steam systems, both in heating engineering, power engineering and municipal economy.  The sheet is resistant to oils, brake fluid and cooling fluid.



Water, steam, solutions of: salt, weak acid, alkali; natural gas, technical propane-butane,
Oils, fuels (by the aromatic hydrocarbons content up to 2%)
  • Allowable Pressure - 55 Bar
  • Maximal Continuous Temperature - 250°C
  • Maximum Continuous Temperature in Steam - 200°C
  • Maximum Peak Temperature - 300°C
  • Density (max +/- 5%) - 2.0g/cmᶟ
  • Tensile Resistance Cross Fibre (min) - 8Mpa
  • Compressibility (at 35 Mpa/20°C) - 5 to 15%
  • Elastic recovery (min/20°C) - 40%
  • Thickness increase of material:
  • in distilled water - 2%
  • in model oil N°3 (150°C after 5h) - 9% max
  • in model fuel B(20°C after 5h) - 9% max

 Gaskets are priced each


Additional carriage charges will apply for Northern Ireland, Republic of Ireland,                                                                                                                      Channel Islands, Isle of Man, Scottish Highlands, Islands and rest of the world.

Please contact us for details