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Elmet Technologies

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Solvay FM® 450-1 BMI Film Adhesive
Categories: Polymer; Adhesive; Thermoset; Bismaleimide (BMI)
Material Notes: FM® 450-1 film adhesive is a high performance BMI adhesive for bonding both composite and metallic structures. This adhesive provides a unique combination of high Tg, toughness and high temperature shear properties. It is designed for co-cure, co-bond or secondary bonding applications. FM 450-1 has excellent resistance to pre-bond and post-bond humidity and has good retention of properties up to 232°C (450°F). FM 450-1 film adhesive delivers excellent tack and drape and has a minimum shop life of 30 days at 24°C (75°F). FM 450-1 is compatible with Cytec’s industry leading CYCOM® 5250-4 BMI prepreg and our new CYCOM® 5261 toughened BMI prepreg. FM 450-1 adhesive film can be supplied as a supported (woven glass or glass mat carrier) or unsupported film at various weights and thicknesses. This adhesive film is suitable for bonding of metallic or composite monolithic or sandwich structures. The unsupported adhesive film can be easily reticulated onto perforated skins or honeycomb for acoustic applications. FM 450-1 adhesive film can be cured at 190°C (375°F) followed by a freestanding post cure at 227°C (440°F) or by following the BMI prepreg cure cycle.

Features & Benefits:

  • Service temperature of 232°C (450°F) dry and 204°C (400°F) wet
  • Suitable for bonding composite monolithic and sandwich structures (good filleting properties)
  • Excellent fracture toughness
  • Excellent resistance to both pre-bond and post-bond humidity
  • Epoxy-like processing with more than 30 days of shop life at 24°C (75°F)
  • Good tack and handling properties
  • Reticulation capability for acoustic applications
Applications:
  • Co-cure, co-bond and secondary bonding of both composite and metallic structures
Note 1: Co-bonded Wide Area Lap Shear with CYCOM 2561 Pre-cured Substrates

Note 2: Secondary Bonded Wide Area Lap Shear with CYCOM 2561 Tape Precured Substrates

Information provided by Cytec, subsequently acquired by Solvay.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Density 1.25 g/cc
Storage Temperature <= -18.0 °C
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength 740 psi
@Temperature 204 °C		Flatwise, Glass honeycomb/CYCOM 5261 skins
 780 psi
@Temperature 163 °C		Flatwise, Glass honeycomb/CYCOM 5261 skins, wet
 790 psi
@Temperature 204 °C		Flatwise, Metal honeycomb/metal skins, FM 450-1 S 0.08 psf; ASTM C297
 850 psi
@Temperature 163 °C		Flatwise, Glass honeycomb/CYCOM 5261 skins
 900 psi
@Temperature -55.0 °C		Flatwise, Glass honeycomb/CYCOM 5261 skins
 915 psi
@Temperature 204 °C		Flatwise, Metal honeycomb/metal skins, FM 450-1 U 0.06 psf; ASTM C297
 1000 psi
@Temperature 24.0 °C		Flatwise, Glass honeycomb/CYCOM 5261 skins
 1075 psi
@Temperature 149 °C		Flatwise, Metal honeycomb/metal skins, FM 450-1 S 0.08 psf; ASTM C297
 1195 psi
@Temperature 149 °C		Flatwise, Metal honeycomb/metal skins, FM 450-1 U 0.06 psf; ASTM C297
 1245 psi
@Temperature 24.0 °C		Flatwise, Metal honeycomb/metal skins, FM 450-1 U 0.06 psf; ASTM C297
 1280 psi
@Temperature 24.0 °C		Flatwise, Metal honeycomb/metal skins, FM 450-1 S 0.08 psf; ASTM C297
Shear Strength 3375 psi
@Temperature 24.0 °C		Lap with Aluminum Substrates
 3900 psi
@Temperature 204 °C		Lap with Aluminum Substrates
 4200 psi
@Temperature 149 °C		Lap with Aluminum Substrates
 4500 psi
@Temperature 149 °C		Lap, Note 2, after 2 weeks Exposure at 71°C and 100% RH
 5000 psi
@Temperature 149 °C		Lap, Note 1, after 2 weeks Exposure at 71°C and 100% RH
 5200 psi
@Temperature -55.0 °C		Lap, Note 2
 5500 psi
@Temperature 24.0 °C		Lap, Note 2
 5500 psi
@Temperature 149 °C		Lap, Note 1
 5610 psi
@Temperature 149 °C		Lap, Note 2
 6300 psi
@Temperature 24.0 °C		Lap, Note 1
 
Thermal PropertiesOriginal ValueComments
Maximum Service Temperature, Air 204 °Cwet
 232 °Cdry
 
Processing PropertiesOriginal ValueComments
Shelf Life 12.0 Month
 
Descriptive Properties
ColorYellow
Honeycomb Sandwich Peel134 Nm/mFM 450-1 S 0.08 psf
 54 Nm/mFM 450-1 U 0.06 psf

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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PCYTED039 / 180341




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