Terostat Butyl Sealants
Butyls are sealants that behave as plastics. They can be shaped by hand or by machine. Since they are 1-part products, they achieve their full performance immediately after application. This saves time as there is no need to wait for a reaction to take place
These products will adhere to a very broad range of substrates. Good adhesion is achieved even on oily surfaces. Butyls are compatible with many different materials and can be easily removed in the case of repairs.
Their self-healing ability is especially useful when it comes to sealing cable harnesses. When a single core is removed from a cable harness that has been sealed with Terostat Butyls, the butyl automatically fills the gap. This effect is due to Terostat’s self-amalgamating properties.
In addition, Terostat Butyls absorb and inhibit vibrations.
Butyls subdivide into the following groups:
- Conventional butyls
- Profiles (tapes; round profiles, and other extruded shapes)
- Putties
- Die-cut pieces
- Sprayable butyls
- Solvent-based butyls in cartridges
- Hotmelt butyls
- Reactiv butyls
Application areas:
- Car and truck electrical systems
- Refrigerators
- Telecommunications
- Mobile homes, trailers
- Solar collectors
- Boilers
Features:
- Compatible with most materials
- Low steam and gas penetration
- Excellent water and aging resistance
- Outstanding corrosion protection
- Highly flexible even at low temperatures
- Will function at temperatures between –50 and +105°C
The electrical industry mainly uses conventional butyls today. Tapes are used to seal cable harnesses, which are then further sealed with grommets made from EPDM, for example.
To meet the increasingly stringent demands in automotive applications, Henkel engineered Terostat-3631 FR, a flame retardant product with exceptionally high heat resistance and thermal stability.
