FM® 355 is a 350°F (177°C) curing epoxy adhesive formulated to maximize toughness in applications requiring hot/wet performance up to 350°F (177°C). It contains no asbestos or aluminum fillers, which is desirable for radar transparent applications. FM® 355 adhesive film is supported with a lightweight nylon carrier and will cure at 350°F (177°C) in one hour. For composite bonding applications, FM® 355 adhesive provides excellent toughness and shear strength properties. It was developed for co-cure as well as secondary bonding applications. In addition FM® 355 adhesive can be co-cured with epoxy or bismaleimide composite systems requiring post-cures of up to 475°F (246°C).
Features and Benefits
  • 350°F (177°C) service temperature with good strength retention up to 420°F (216°C) 
  • Controlled flow 
  • Radar transparent  
  • Excellent strength in both metallic and composite structures 
  • Does not contain asbestos or aluminum fillers


  • Global Business Unit
    Composite Materials
  • Brand
  • Synonyms
    fm355; fm; fm 355; 355; epoxy; adhesive; adhesive film; film;


Segments Applications
Airframe Secondary structural materials | Primary structural materials

Chemical categories

Chemical category Chemical family Chemical product
Composites Thermoset Epoxy

Region of commercial availability

  • Asia / Pacific
  • Europe / Middle East / Africa
  • North America
  • Latin America

Download documentation for FM 355