Skip to main content Skip to search Skip to main navigation

OTTOSEAL® S25 The acetoxy high-temperature silicone

Product information "OTTOSEAL® S25 The acetoxy high-temperature silicone"

High-temperature sealant – For extreme loads up to +300 °C

This specially developed high-temperature sealant offers extremely high temperature resistance of up to +300 °C. It is highly elastic, easy to apply and ideal for demanding sealing and bonding applications in areas with high thermal loads.

Areas of application

  • Sealing and bonding cast-section boilers and flue gas boxes
  • Use on tiled stoves and other heat-resistant components
  • Automotive: Seals for engines, gearboxes and other heat-stressed components

Product properties

  • High-temperature resistant up to +300 °C – ideal for extreme heat applications
  • Very elastic – compensates for thermal expansion and mechanical stress
  • Easy application – optimal adhesion without complicated pre-treatment
  • Durable & resistant – withstands temperature fluctuations

Standards & tests

  • Meets the requirements for fire behaviour to EN 13501: Class E
  • Certified to UL 94 Flame Classification HB, RTI 105 °C, File No. E 176319
  • Suitable for applications in accordance with IVD data sheets no. 31 and 35

Order now – for maximum safety and reliability at extreme temperatures!

0 of 0 reviews

Average rating of 0 out of 5 stars

Leave a review!

Share your experiences with other customers.


Skip product gallery

Ähnliche Artikel

OTTOSEAL® S 17 The neutral high-temperature silicone
OTTOSEAL® S 17 – The neutral high-temperature silicone OTTOSEAL® S 17 is a high-quality one-part silicone sealant on an oxime basis that is neutral-curing and MEKO-free. This silicone impresses with its very high temperature resistance and its non-corrosive properties. Thanks to its elasticity and good workability, the sealant is suitable for applications both indoors and outdoors. Product properties and advantages: High temperature resistance: Up to +285 °C, ideal for demanding applications at high temperatures. Non-corrosive: No attack on unprotected metal surfaces. Very elastic: Flexibility and resistance to mechanical stress. Good workability: Easy to apply and ideal for professional applications. Areas of application: Sealing and bonding cast-section boilers, flue gas boxes, tiled stoves and similar high-temperature applications For automotive applications, e.g. on engines and gearboxes Special properties: Temperature-resistant up to +285 °C Non-corrosive to unprotected metal surfaces Standards and tests: Meets the fire behaviour requirements of EN 13501: Class E French VOC emission class A+ Suitable for applications per IVD data sheets no. 31 and no. 35 Conclusion: With OTTOSEAL® S 17 you get an extremely temperature-resistant, elastic, non-corrosive sealant that is ideally suited for high-temperature applications as well as automotive use. Order now and benefit from the high quality and reliability of this product!

Content: 0.31 Litre (€50.00* / 1 Litre)

€15.50*