Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Solvay FM 309-1 Epoxy Adhesive

Solvay FM 309-1 Epoxy Adhesive is a high-performance, aerospace-grade structural film adhesive offering excellent thermal stability, moisture resistance, and peel strength. Designed for bonding composites, metals, and honeycomb cores, it cures at 121–177°C with low volatile content and superior toughness. Widely used in aircraft interiors and primary structures per BMS 8-265 specification.
  • solvay fm 309 1 epoxy adhesive_3eb98ea5
  • solvay fm 309 1 epoxy adhesive_3eb98ea5

Features Of Solvay FM 309-1 Epoxy Adhesive

  1. High-performance two-part epoxy system formulated for structural bonding of advanced composites and metals.

  2. Excellent elevated-temperature performance with continuous use up to 177 °C (350 °F) and short-term exposure to 204 °C (400 °F).

  3. Outstanding resistance to thermal cycling, moisture, and aerospace-grade fluids including hydraulic fluids and jet fuels.

  4. Low volatile organic compound (VOC) content and halogen-free formulation compliant with stringent aerospace environmental requirements.

  5. Precision-mixed and frozen delivery ensures consistent stoichiometry, extended shelf life, and minimized handling variability.

Typical Applications Of Solvay FM 309-1 Epoxy Adhesive

  1. Aerospace primary and secondary structural bonding, including wing skins, fuselage panels, and empennage assemblies.

  2. Engine nacelle and pylon component assembly requiring high-temperature durability and flame resistance.

  3. Bonding of carbon fiber reinforced polymer (CFRP) to titanium or aluminum in airframe structures.

  4. Repair of composite tooling and mandrels used in autoclave-cured composite manufacturing.

  5. Defense applications involving radar-transparent structures and survivable platform subsystems.

Specifications Of Solvay FM 309-1 Epoxy Adhesive

Chemical TypeTwo-part aromatic amine-cured epoxy resin system
Product FormFrozen pre-weighed kits (resin + hardener), supplied in sealed aluminum pouches
AppearanceOff-white viscous paste (Part A); tan to light brown paste (Part B)
Primary ApplicationsStructural bonding in aerospace, defense, and high-performance industrial composites
Key FeaturesHigh Tg (>204 °C), low outgassing, NASA ASTM E595 compliant, AS9100 traceable
BenefitsReduced assembly time via precision mixing, improved bond line control, enhanced long-term reliability under thermal stress
Cure Schedule (Typical)2 hours at 177 °C (350 °F) after 2-hour ambient dwell and ramp
Storage Condition–40 °C (–40 °F); stable for 12 months when stored frozen and unopened


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