Akfix HT300 is a high-performance silicone sealant developed for sealing, bonding and repairing works where heat resistance is required. It is an ideal sealant for high temperature construction applications. It reacts with atmospheric moisture to produce a tough, elastic silicone.



  • Excellent heat resistance after curing up to 250 °C permanently and up to 300 °C temporarily.
  • 100% silicone,
  • Remains flexible at low (-40 °C) and high (+250 °C) temperatures,
  • Resists to mechanical enforcement after curing,
  • Acetoxy cure, RTV silicone,
  • Will not crack, shrink or become brittle,
  • One component.
Application Areas

  • Sealing and bonding applications in automotives,
  • On heating systems and ovens for sealing / tightness,
  • Sealing and bonding in stoves,
  • Gaskets in pumps and motors,
  • Sealing chimneys,
  • Other bonding and sealing applications where parts must perform at high temperatures.

Stock Code Product Code Type Volume BoxQty
SA075 HT300 Red 310 ml 24
SA073 HT300 Black 310 ml 24
SA133 HT300 Black 85 gr 20
SA135 HT300 Red 85 gr 20
SA137 HT300 Blue 85 gr 20
SA136 HT300 Grey 50 gr 24
SA113 HT300 Black 50 gr 24
SA215 HT300 Red 80 ml 36
SA875 HT300 Red 80 ml 36
SA873 HT300 Black 80 ml 36
SA876 Ht300 Gray 80 ml 36


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