Flexibilized and Toughened Adhesive Systems
Master Bond offers an extensive variety of flexibilized and toughened epoxies, silicones, urethane- and polysulfide- modified epoxies, and UV curables engineered for demanding application requirements.
Master Bond's toughened and flexibilized systems address impact, peel and cyclic stress directly by delivering elongations of 50–80%, with select grades exceeding 200%. The result is reliable bond performance under vibration, thermal cycling, and CTE mismatch conditions.
Why Choose a Flexibilized or Toughened System?
Master Bond's flexibilized and toughened adhesives, sealants, and coatings are used across the full product lifecycle. This extends from design and prototyping through production.
In precision assemblies, such as optical, piezoelectric, and medical, residual cure stresses can cause birefringence, component misalignment, or physical damage. Toughened compounds are a go-to choice in situations where residual stress needs to be minimized.
Depending on the specific formulation, these systems offer:
- Superior resistance to thermal shock, impact, stress cracking, and fatigue
- Outstanding adhesion to dissimilar substrates
- Excellent electrical insulation and chemical resistance
- Electrical or thermal conductivity
- NASA low outgassing approval
- Optical clarity in select grades
Performance Across Extreme Temperatures
Formulated for high performance in hostile environments, these compounds remain serviceable across a wide temperature range. Such conditions could vary from everyday industrial environments to extreme heat and cold. At cryogenic temperatures, where brittleness is amplified, toughening agents are typically utilized. Master Bond's technical team can help identify the right grade for your temperature range and substrate requirements.
Our Most Popular Flexibilized and Toughened Epoxy Compounds
