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Tech Table: Adhesives

A table of aerospace structural adhesives includes collected from data provided by suppliers. 
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The bonding of aerostructures is becoming increasingly important as airframers seek solutions for next-generation aircraft that enable increased lightweighting. The ability to assemble and unitize structures and minimize use of mechanical fasteners is critical to efficient, high-rate commercial aircraft manufacturing. That said, bond application control and bond quality assurance are still maturing, and thus have not yet supplanted mechanical fasteners in aircraft assembly.

Still, manufacturers have brought to market a wide array of adhesives designed to mate structures of all types of materials, including metal and composite laminates and honeycomb cores. This is the first of a series of Tech Tables that CW will publish in 2020, each designed to provide as comprehensive a list as possible of suppliers, their products and selected product specifications.

This table of aerospace structural adhesives, which includes film and paste adhesives, was built with data provided by suppliers. It should be noted that not all of the same data were provided for each adhesive by each supplier. Further, each supplier conducts different tests to characterize the adhesive; one test, however, was conducted more than others, and that is the single lap shear test, also known as ASTM D 1002. Based on data CW received, most of the single lap shear strength data were derived from tests with metallic adherends, or the adherend was not specified at all. A minority of single lap shear strength data were derived from tests with composite adherends.

Download a PDF of the adhesives Tech Table as it appears in the January 2020 issue of CompositesWorld: Tech Table: Adhesives.

Look for two more Tech Tables in 2020: Mold release agents (July issue) and compression molding machines (December issue).

*Composite material specified by supplier as adherend in single lap shear test.
Supplier Product Format Type Areal weights, gsm (film only) Cure temperature, °C Cure time Glass transition temperature (Tg), °C Service temperature, dry, °C Single lap shear strength, RT, Mpa* Note
3M Scotch-Weld AF 143-2 Film   463-537 177 1 hr   -55 to 177   Metal, composite, sandwich structure
3M Scotch-Weld AF 502 Film   294 121 1-2 hrs 118     In or out of autoclave
Barrday FA EP255SP Film Epoxy 293 113, 135 1-2 hrs       In or out of autoclave, or press cure
Barrday FA EP259 Film Epoxy   113, 135 1-1.5 hrs       Metal, composite, sandwich structure
Click Bond CB200 Paste Acrylic   RT 24 hrs   -55 to 121 30.3 Environmental, chemical resistance
Click Bond CB359 Paste Epoxy   RT-82 1 hr-7 days   -55 to 93 31.0 Water, salt spray, organic fluid resistance
Click Bond CB394 Paste Epoxy   RT-65 1 hr-5 days   -55 to 177 30.0 Potting, filling, liquid shim
Click Bond CB420 Paste Acrylic   RT 24 hrs   -54 to 121 21.0 Environmental, chemical resistance
Henkel Loctite EA 7000 AERO Film Epoxy 146-391 121, 177 1-2 hrs 145 150 28.0* High fracture toughness
Henkel Loctite EA 9309.3NA AERO Paste Epoxy   RT, 82  1 hr-5 days 61, 81   32.8, 34.5 Contains glass beads for bondline control
Henkel Loctite EA 9377 AERO Paste Epoxy   RT, 82  1 hr-7 days 67   36.9 Moldable shim
Henkel Loctite EA 9380.05 AERO Paste Epoxy   82-104 2 hrs 106 121 35.0 Meter mixable, low-temp cure
Henkel Loctite EA 9394 AERO Paste Epoxy   25, 66, 93 1 hr-5 days 78 177 28.9 Thixotropic; for potting, filling, liquid shim
Henkel Loctite EA 9394.2 AERO Paste Epoxy   25 24 hrs 70 121 33.9 Fast-cure thixotropic; for potting, filling, liquid shim
Henkel Loctite EA 9396.6MD AERO Paste Epoxy   25, 82, 93 1 hr- 7 days 64-112 149 18.6 High-temp; for potting, filling
Henkel Loctite EA 9658 AERO Film Epoxy 290-490 177 1 hr 200 177 35.9, 36.5 High-toughness nacelle adhesive
Henkel Loctite EA 9686 AERO Film Epoxy 146-415 121, 177 1-1.5 hrs 121-124 -55 to 149 40.7, 43.0 High toughness; large service temp window
Henkel Loctite EA 9695 AERO Film Epoxy 171-244 121, 177 1-1.5 hrs 122, 150 149 31.7, 34.5 Co-cure and pre-cure; suitable for repair
Henkel Loctite EA 9696 AERO Film Epoxy   107, 129 1-1.5 hrs 123 121 34.8-42.0 High-toughness, high-temp, reticulatable
Henkel Loctite EA 9814 AERO Paste Epoxy   127, 177 1-1.5 hrs   177   Low-density, fire-retardant, one-component
Henkel Loctite EA 9820 AERO Paste Epoxy   121, 177 1-1.5 hrs   177   Intermediate density, one-component
Henkel Loctite EA 9824 AERO Paste Epoxy   127, 177         Flame, smoke, toxicity (FST) adhesive
Henkel Loctite EF 562 AERO Sheet Epoxy   121, 177 1 hr 149 -55 to 177   Foaming core splice adhesive
Hexcel HexBond 200 Series Sheet Epoxy   121, 177 1 hr   -55 to 220   Foaming adhesive
Hexcel HexBond 308 Film Epoxy 293 171 1 hr   121 46.9 Metal, composite, sandwich structure
Hexcel HexBond 319 Film Epoxy 176-391 177 1-4 hrs   -55 to 149 31-45 Metal, composite, sandwich structure
Hexcel HexBond 322 Film Epoxy 244-381 177 1 hr   199 21, 22 221°C short duration service
Hexcel HexBond 340U(SP) Film Epoxy 50-150 175 1 hr   180 31, 32 Suitable for space applications
Hexcel HexBond ST1150 Film Epoxy 750-1500 120-180 1 hr       Foaming adhesive film
Hexcel HexBond ST1480 Film Epoxy 75-292 180 1.5-4 hrs 180-193 -55 to 150 32.6, 33.8* Composite-to-composite, metal-to-metal
L&L Products L-0010 Sheet     RT, 50   133   27.8-30.7 Vertical burn test compliant
L&L Products L-9000 Sheet     121-177         Foaming adhesive; 100-500% expansion
L&L Products L-9001 Sheet/Beads     140 1 hr       Foaming adhesive; 100-160% expansion
L&L Products L-9003 Sheet/Beads     140 1 hr       Foaming adhesive; 100-450% expansion
L&L Products L-9100 Series Paste Epoxy   15-30         5 minutes-1 hour working time
L&L Products L-9107 Paste Epoxy   23, 65 15 min-5 days   -55 to 135   FST-compliant; 15 minutes working time
L&L Products L-9115 Paste Epoxy   15-30         FST-compliant; 10-20 minutes working timeFST-compliant; 35-50 minutes working time
L&L Products L-9150 Paste Epoxy   15-30          
Lord LORD 403/406/410 Paste Acrylic   RT, 66 24 hrs   -40 to 149 13.3-20.7 Low-temperature performance
Magnolia Magnobond 6162 A/B Paste Epoxy   RT, 52, 82 1 hr-7 days     34.5 FST-compliant
Magnolia Magnobond 6166 A/B Paste Epoxy   RT, 52, 82 1 hr-7 days 100   27.6 FST-compliant
Magnolia Magnobond 6168 A/B Paste Epoxy   RT, 82, 121 1 hr-7 days     27.6 Toughened system
Magnolia Magnobond 6380 A/B Paste Epoxy   RT, 77, 104 1 hr-3 days     31 Contains glass beads for bondline control
Magnolia Magnobond 6388-3 A/B Paste Epoxy   RT, 127 1 hr-7 days   -55 to 149 22 Adhesive/shim
Magnolia Magnobond 6389 A/B Paste Epoxy   RT, 60 4 hrs-5 days   -55 to 149 20.7 Liquid shim; carbon fiber-filled
Magnolia Magnobond 6392-2 A/B Paste Epoxy   RT, 66, 121 1 hr-7 days     31 Contains spacers for bondline control
Magnolia Magnobond 6398 A/B Paste Epoxy   RT, 66, 122 1 hr-7 days     32.4 Thixotropic paste
Magnolia Magnobond 6448 A/B Paste Epoxy   RT 8 hrs     27.8 Liquid shim
Magnolia Magnobond 7500 A/B Paste Epoxy   RT plus 93 20 hrs     27.6 Long pot life
Renegade RM 1005 Film Polyimide 293-488 177 2 hrs 327   17.2* Co-cure or out of autoclave; repair
Renegade RM 1010 Film Polyimide 293-488 357 2 hrs 371   19.3* For use with high-temp polyimide prepregs
Renegade RM 1014 Film Polyimide 293-488 293 2 hrs 316   20.0* Metal, composite, sandwich structure
Renegade RM 3006 Paste Bismaleimide   227 12 hrs     13.8 Liquid shim or potting
Renegade RM 3007 Paste Bismaleimide   227 12 hrs   -54 to 204   Liquid shim or potting
Renegade RM 3011 Film Bismaleimide 293 232 13 hrs 310 -54 to 204   Co-cure, co-bond, secondary bond, OOA or repair
Solvay FM 209-1 Film Epoxy 150-490 121, 177 1.5 hrs 132 121 31.4, 34.7 In or out of autoclave
Solvay FM 300 Film Epoxy 146-391 177 30 min 109 -55 to 149 29.8-40.3 Surface finish, barrier
Solvay FM 300-2 Film Epoxy 146-489 121, 149 1.5 hrs   -55 to 149 14.8-30.0* Co-cure, secondary
Solvay FM 309-1 Film Epoxy 146-391 177 1.5-2 hrs 182 177 30.5-41.2 Co-cure, co-bond, secondary
Solvay FM 450-1 Film Bismaleimide 147-488 191 4 hrs   232 23.0 Co-cure, co-bond, secondary
Solvay FM 57 Film Polyimide 293, 488 177 1.5 hrs   -55 to 288 24.3* Composite, metal
Solvay FM 73 Film Epoxy 100-420 121 1 hr 76 -55 to 82 39.8-47.2 Composite, metal
Solvay METLBOND 1515-4M Film Epoxy 158-390 121, 177 2 hrs 170 148 14.8-32.8 Composite-to-composite; extended outlife
Toray EF8020 Film Epoxy 100, 300 70-120 0.5-8 hrs 116 121 27.0, 38.0 Composite-to-composite, metal-to-metal
Toray EX-1516 Film Cyanate ester   121   126   29.7 Low moisture absorption; low dielectric constant
Toray EX-1543 Film Cyanate ester 146 177-218   191, 236   16.8, 17.9 Low moisture absorption; low dielectric constant
Toray MicroPly EF72 Film Epoxy 100-300 120 1 hr 112   25, 32 Composite, metal
Toray RS-15H Film Epoxy   80-93 6.5 hrs

99

  21.0 Sandwich structures; co-cure, secondary
Toray RS-4A Film Cyanate ester   177   195, 238   28.3 Sandwich structures; co-cure, secondary
Toray TC263 Film Epoxy 70-293 121 2 hrs 110-115 93 19.6-33.8 In or out of autoclave; 21-day outlife
Toray TC310 Film Epoxy 171, 293 121, 177 2-3 hrs 157   31.1-37.1 In or out of autoclave
Toray TC4015 Film Cyanate ester 171-288 177, 232  2 hrs 321 538 15.2, 17.9* Low moisture absorption; high-temperature bond strength

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