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Solvay FM® 385S Epoxy Film Adhesive
Categories: Polymer; Adhesive; Thermoset; Epoxy; Epoxy Adhesive

Material Notes: Description: FM® 385 adhesive film was developed specifically for bonding composite and metallic structures for nacelle applications. It provides a unique combination of high Tg good toughness and very high flatwise tensile properties. FM 385 is designed for co-cure, co-bond or secondary bonding applications and is compatible with most 350°F (177°C) curing epoxy-based prepreg systems. It has excellent resistance to pre-bond and post-bond humidity and has a dry service temperature of 420°F (215°C). FM 385 adhesive film provides excellent handling properties (good tack and drape) and has a minimum shop life of 30 days at 75°F (24°C). FM 385 adhesive can be supplied as a supported (woven glass or mat carrier) or unsupported film at various weights and thicknesses. For co-cure or co-bond applications, adhesive film weight of 0.060 – 0.080 lb/ft2 with woven glass or a glass mat carrier is recommended. This adhesive film is suitable for bonding of monolithic or sandwich structures. Honeycomb sandwich panels manufactured using FM 385 adhesive film demonstrate excellent laminate quality (void content <1%) and very good filleting. FM 385 adhesive film can be cured at 350°F (177°C) in 90 minutes at 40 psi (0.28 MPa) or can be cured under vacuum-only pressure. Performance after vacuum-only cure is comparable to that after pressure cure. Cytec recommends using 250°F (121°C) curing BR® 6747-1 (chromated) or BR 6700 (non-chromated) water-based primers for metal bond applications using FM 385 adhesive film. For higher temperature applications or continuous service at 350°F (177°C), higher Tg BR 6800 non-chromated primer is recommended.

Features & Benefits:

  • Compatible with most 350°F (177°C) curing epoxy prepregs
  • Excellent fracture toughness (co-cure, co-bond or secondary bond)
  • Service temperature of 420°F (215°C) dry and 300°F (150°C) wet
  • Excellent resistance to both pre-bond and post-bond humidity
  • Good combination of peel and shear properties
  • Tg > 375°F (190°C)
  • Designed for bonding composite sandwich structures (good filleting properties)
  • Unsupported film designed for reticulation for acoustic structures
  • Highly flow controlled, good tack and handling properties
  • Shop life > 30 days at 75°F (24°C).
Applications:
  • Co-cure, co-bond and secondary bonding of metallic and composite structures for nacelle applications
  • Bonding of honeycomb sandwich structures

Information provided by Cytec, subsequently acquired by Solvay.

Vendors:
Available Properties
  • Density
  • Volatiles
  • Storage Temperature
  • Tensile Strength, Honeycomb Flatwise after 250°F (121°C) wet 750 hours at 160°F (71°C)
  • Tensile Strength, Honeycomb Flatwise after 75°F (24°C) wet 750 hours at 160°F (71°C)
  • Tensile Strength, ASTM D1655, Honeycomb Flatwise after Salt spray, 75°F (24°C) 750 hours at 95°F (35°C)
  • Tensile Strength, Honeycomb Flatwise after Turbine Oil 168 hours at 75°F (24°C)
  • Tensile Strength, Honeycomb Flatwise after Solvent (RIMS 1017 MEK/MIBK 168 hours at 75°F (24°C)
  • Tensile Strength, Honeycomb Flatwise after Hydraulic Fluid 168 hours at 75°F (24°C)
  • Tensile Strength, Honeycomb Flatwise after Deicing Fluid (AMS 1428) 168 hours at 75°F (24°C)
  • Tensile Strength, Honeycomb Flatwise after Jet A. 75°F (24°C) 168 hours at 75°F (24°C)
  • Tensile Strength, Honeycomb Flatwise
  • Tensile Strength, Honeycomb Flatwise
  • Tensile Strength, Honeycomb Flatwise
  • Tensile Strength, Honeycomb Flatwise
  • Shear Strength, Lap after 250°F (121°C) wet 750 hours at 160°F (71°C)
  • Shear Strength, Lap after Solvent (RIMS 1017 MEK/MIBK 168 hours at 75°F (24°C)
  • Shear Strength, Lap after Salt spray, 75°F (24°C) 750 hours at 95°F (35°C)
  • Shear Strength, Lap after Turbine Oil 168 hours at 75°F (24°C) per MIL-L-23699
  • Shear Strength, Lap after Jet A. 75°F (24°C) 168 hours at 75°F (24°C) per ASTM D-1655
  • Shear Strength, Lap after Hydraulic Fluid 168 hours at 75°F (24°C)
  • Shear Strength, Lap after Deicing Fluid (AMS 1428) 168 hours at 75°F (24°C)
  • Shear Strength, Lap with Aluminum Substrates
  • Shear Strength, Double Lap with Aluminum Substrates
  • Shear Strength, Lap with Aluminum Substrates
  • Shear Strength, Double Lap with Aluminum Substrates, wet
  • Shear Strength, Lap with Aluminum Substrates
  • Shear Strength, Lap with Aluminum Substrates
  • Shear Strength, Double Lap with Aluminum Substrates
  • Shear Strength, Double Lap with Aluminum Substrates
  • Shear Strength, Double Lap with Aluminum Substrates
  • Maximum Service Temperature, Air, wet
  • Maximum Service Temperature, Air, dry
  • Shelf Life
  
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Manufacturer Notes:
Solvay, former Rhodia Engineering Plastics

Category Notes
Plastic

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