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Elmet Technologies

Solvay FM® 94M Adhesive Film
Categories: Polymer; Film; Thermoset; Epoxy
Material Notes: Description: FM® 94 adhesive is a 220°F (104°C) service temperature, modified epoxy film adhesive designed for bonding metallic and composite structures. FM 94 adhesive offers a unique combination of high temperature performance, toughness and moisture resistance as demonstrated by its ability to bond to wet Nomex® honeycomb and retention of shear properties after pre- and post-bond humidity exposure. FM 94 adhesive is designed for applications demanding the best of both 220°F (104°C) service temperature and -67°F (-55°C) peel strength. For composite and metal bonding applications, FM 94 adhesive is formulated to exhibit superior elongation, toughness and shear strength properties. The controlled flow characteristics allow for its use in co-cured applications as well as bonding pre-cured structures. Also, FM 94 adhesive provides excellent electrical insulation between metal and graphite composites, reducing the potential for galvanic corrosion. FM 94 film adhesive is manufactured as a supported adhesive with both knit and mat carriers, or as an unsupported film. When supported with a knit carrier, optimal mechanical properties can be obtained. The random mat provides superior handling characteristics. With the mat carrier, FM 94 adhesive can be supplied in a one-side tacky (OST) version which helps reduce air entrapment when bonding large metal or composite parts.

Features & Benefits:

  • Demonstrates superior strength in bonding both metallic and composite structures
  • Provides structural performance from -67°F to 220°F (-55°C to 104°C)
  • Offers exceptional elongation and toughness
  • Higher service temperature version of FM® 73 film adhesive
Applications:
  • Bonding of metallic and composite structures
Note 1: Aluminum Substrate with BR® 6747-1 Adhesive Primer
Note 2: FM 94K 0.06 psf (293 gsm) Film Adhesive after Humidity, Salt Spray and Solvent Exposure, Aluminum Substrate with BR 6747-1 Adhesive Primer
Note 3: FM 94K 0.06 psf (293 gsm) Film Adhesive, Effect of Cure Cycle, Aluminum Substrates with BR 6747-1 Adhesive Prime
Note 4: FM 94K 0.06 psf (293 gsm) Film Adhesive with BR 6747-1 Adhesive Primer
Note 5: Effect of Humidity, Wet Nomex Bonding with FM 94M 0.06 psf (293 gsm) Film Adhesive, Immersed in water for 24 hours at 140°F (60°C) then bonded within 2 hours
Note 6: Composite Substrates Co-cure Data with FM 94M 0.06 psf (293 gsm) Film Adhesive
Note 7: Secondary Bonding of Epoxy/Graphite Substrates with FM 94M 0.06 psf (293 gsm) Film Adhesive

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 PropertiesMetricEnglishComments
Volatiles <= 1.0 %<= 1.0 %
Storage Temperature -18.0 °C-0.400 °F
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength 7.688 MPa1115 psiFlatwise, FM 94 co-cured with BMS 8-79 prepreg (epoxy/glass), BMS 8-124 core (Type 1, Class 1), Note 6
 2.45 MPa
@Temperature 104 °C		355 psi
@Temperature 219 °F		Flatwise, 0.06 psf, Note 1
 3.05 MPa
@Temperature 24.0 °C		442 psi
@Temperature 75.2 °F		Flatwise, CYCOM® 950-1 3K 70P 3 plies Composite surface preparation: nylon peel ply, Note 7
 3.08 MPa
@Temperature 82.0 °C		446 psi
@Temperature 180 °F		Flatwise, CYCOM® 950-1 3K 70P 3 plies Composite surface preparation: nylon peel ply, Note 7
 3.72 MPa
@Temperature 71.0 °C		540 psi
@Temperature 160 °F		Flatwise, Note 5
 4.21 MPa
@Temperature 24.0 °C		610 psi
@Temperature 75.2 °F		Flatwise, Note 5
 4.45 MPa
@Temperature 82.0 °C		645 psi
@Temperature 180 °F		Flatwise, 0.06 psf, Note 1
 8.62 MPa
@Temperature 24.0 °C		1250 psi
@Temperature 75.2 °F		Flatwise, 0.06 psf, Note 1
 11.55 MPa
@Temperature -55.0 °C		1675 psi
@Temperature -67.0 °F		Flatwise, 0.06 psf, Note 1
Shear Strength  17.2 MPa
@Temperature 121 °C		2490 psi
@Temperature 250 °F		Wide Area Blister Detection, 0.06 psf, Note 1; ASTM D3165
 17.7 MPa
@Temperature 82.0 °C		2570 psi
@Temperature 180 °F		CYCOM 985 3K 70P, 0.1 in (2.54 mm) thick, Note 7
 19.7 MPa
@Temperature 82.0 °C		2850 psi
@Temperature 180 °F		FM 94M co-cured with CYCOM® 985 3K 70P (BMS 8-212 prepreg), Note 6
 20.7 MPa
@Temperature 71.0 °C		3000 psi
@Temperature 160 °F		CYCOM 985 3K 70P, 0.1 in (2.54 mm) thick, Note 7
 21.0 MPa
@Temperature 82.0 °C		3040 psi
@Temperature 180 °F		FM 94M co-cured with CYCOM® 985 3K 70P (BMS 8-212 prepreg), Exposure: 30 days at 160°F (71°C), 100% RH, Note 6
 23.5 MPa
@Temperature 104 °C		3410 psi
@Temperature 219 °F		Wide Area Blister Detection, 0.06 psf, Note 1; ASTM D3165
 23.8 MPa
@Temperature 24.0 °C		3450 psi
@Temperature 75.2 °F		CYCOM 985 3K 70P, 0.1 in (2.54 mm) thick, Note 7
 24.24 MPa
@Temperature 104 °C		3515 psi
@Temperature 219 °F		0.06 psf, Note 1; ASTM D1002
 25.48 MPa
@Temperature 82.0 °C		3695 psi
@Temperature 180 °F		Wide Area Blister Detection, 0.06 psf, Note 1; ASTM D3165
 25.6 MPa
@Temperature 24.0 °C		3710 psi
@Temperature 75.2 °F		FM 94M co-cured with CYCOM® 985 3K 70P (BMS 8-212 prepreg), Note 6
 29.0 MPa
@Temperature 24.0 °C		4200 psi
@Temperature 75.2 °F		FM 94M co-cured with CYCOM® 985 3K 70P (BMS 8-212 prepreg), Exposure: 30 days at 160°F (71°C), 100% RH, Note 6
 33.47 MPa
@Temperature 82.0 °C		4855 psi
@Temperature 180 °F		0.06 psf, Note 1; ASTM D1002
 35.82 MPa
@Temperature 24.0 °C		5195 psi
@Temperature 75.2 °F		Wide Area Blister Detection, 0.06 psf, Note 1; ASTM D3165
 35.96 MPa
@Temperature -55.0 °C		5215 psi
@Temperature -67.0 °F		Wide Area Blister Detection, 0.06 psf, Note 1; ASTM D3165
 41.9 MPa
@Temperature -55.0 °C		6080 psi
@Temperature -67.0 °F		0.06 psf, Note 1; ASTM D1002
 43.7 MPa
@Temperature 24.0 °C		6340 psi
@Temperature 75.2 °F		0.06 psf, Note 1; ASTM D1002
Peel Strength  9.12 kN/m
@Temperature -55.0 °C		52.0 pli
@Temperature -67.0 °F		Floating Roller, 0.06 psf, Note 1; ASTM D3167
 10.5 kN/m
@Temperature 104 °C		60.0 pli
@Temperature 219 °F		Floating Roller, 0.06 psf, Note 1; ASTM D3167
 12.3 kN/m
@Temperature 24.0 °C		70.0 pli
@Temperature 75.2 °F		Floating Roller, 0.06 psf, Note 1; ASTM D3167
 12.3 kN/m
@Temperature 82.0 °C		70.0 pli
@Temperature 180 °F		Floating Roller, 0.06 psf, Note 1; ASTM D3167
 
Thermal PropertiesMetricEnglishComments
Maximum Service Temperature, Air 104 °C219 °F
Minimum Service Temperature, Air -55.0 °C-67.0 °F
 
Processing PropertiesMetricEnglishComments
Shelf Life 12.0 Month12.0 Month
 
Descriptive Properties
ColorGreen
Honeycomb Sandwich Peel107 Nm/m93°C, Note 1, ASTM D1781
 75.6 Nm/m104°C, Note 1, ASTM D1781
 89 Nm/m24°C, Note 1, ASTM D1781
Metal-to-Metal Climbing Drum Peel334 Nm/m104°C, Note 1, ASTM D1781
 347 Nm/m93°C, Note 1, ASTM D1781
 356 Nm/m24°C, Note 1, ASTM D1781

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