Scotch-Weld TM Structural Adhesive Film AF 163-2

1 3 Scotch-WeldTMStructural Adhesive FilmAF 163-2 Introduction3M Scotch-Weld Structural Adhesive Film AF 163-2 designates a family ofthermosetting modified epoxy Structural adhesives in film form which are availablein a variety of weights with or without a supporting carrier. Scotch-Weld AF 163-2 Films are designed for both solid panel and honeycomb sandwich DatasheetNovember 2009 WeightNominalProduct( .005) Lb/ft2 ColorThickness - milsScotch-Weld af 163 -2G108 af 163 -2K af 163 -2K af 163 -2K af 163 -2L af 163 -2M af 163 -2M af 163 -2M AF 163-2 OST AF 163-2 OST AF 163-2 OST af 163 -2U af 163 -2U af 163 -2U af 163 -3M.

2 G = fiberglass scrimK = knit supporting carrierL = light weight non-woven supporting carrier (Matte)M = non-woven supporting carrier (Matte)OST = one side tacky with non-woven carrier (Matte) on low tack surfaceU = unsupported filmThe following Scotch-Weld af 163 Films are included in this data sheet: High bond strength from -67 F to 250 F High fracture toughness and peel strength Excellent resistance to high moisture environments before and after curing Short cure time at 225 F (90 minutes) Capable of low pressure bonding Vacuum cure capability X-ray opaque (allows use of x-ray NDI methods) Excellent shop open time and long shelf life Scotch-Weld af 163 -3M Film is a higher tack version of Scotch-Weld AF 163-2 Film Isolating version available ( Scotch-Weld af 163 -2G108 Film)

3 For bonding dissimilarsubstrates Unsupported versions available for reticulation ( Scotch-Weld af 163 -2U Film)Advantages3M Scotch-Weld Structural Adhesive Film AF 163-2 Technical Datasheet- 2 -Product PerformanceNote: The following technical information and data should be considered representativeor typical only and should not be used for specification Typical 3M Scotch-Weld Structural Adhesive Film AF 163-2 Cured FreeFilm (unsupported) Properties: (cured 60 minutes at 250 F)TemperatureUltimate Strength (psi)Modulus (psi)-67 F11, x 10575 F7, x 105180 F3,0006 x 104 Tensile Strength and Modulus (ASTM D 638)Cured: Free Film Strips approx.

4 1/4" x 3" x .01" thickCure: 90 minutes at 235 FPropertyTypical ValueMethodGlass Transition (Tg) TemperatureDry226 F (108 C)DuPont 1090 DMAWet (14 days in 70 C water)180 F (82 C)@ 5 C/min rampThermal Conductivity @ 43 ASTM C-177ft2hr FThermal Coefficient of Expansion90 x 10-6in @ -30 to 50 Cin CTMA @ 5 C/minVolume x 1014ohm-cmASTM D-257 Dielectric Strength @1 KHz @ 75 F (23 C)1800 volt/milASTM D-149 Dielectric Constant and Dissipation FactorASTM D 150 FrequencyDissipation FactorDielectric Constant@ 75 (23 C)

5 @ 75 (23 C) Scotch-Weld af 163 -2U Film100 af 163 -2K af 163 -2M 75 F Bulk Modulus, Shear Modulus, and Poisson s Ratio knit supported17 ply laminate ~ inches thick (ASTM D 3039) cure 60 minutes at 250 FModulus Elasticity161 x 103psiShear Modulus60 x 103psiPoisson s Scotch-Weld Structural Adhesive Film AF 163-2 Technical Datasheet- 3 -Product Performance(continued) (psi)Elong. (in)Stress (psi)Elong. (in)Modulus (psi)75 ,685180 ,495B. Thick Adherend Shear Properties ASTM D5656 Cure Cycle: 270 F, 60 minutes, 40 psi, 1 : 2024 T-3 Bare " thick aluminum FPL etchedPrimer: 3M Scotch-Weld Structural Adhesive Primer EC-3924 BII.

6 Typical Cured Bond PropertiesA. 75 F Fracture Toughness 3M Test Method C-295 Cure Cycle: 235 F, 90 minutes, 35 psi, 5 : 3M Scotch-Weld Structural Adhesive Primer EC-3960 Metal: 2024 T-3 Bare 1/2" thick aluminum FPL etched and PhosphoricAcid Anodize3M Scotch-Weld Structural Adhesive FilmAF 163-2 KAF 163-2 OSTAF 163-2 OSTAF 163-3M(.06 lb/ft2)(.03 lb/ft2)(.06 lb/ft2)(.03 lb/ft2)GICIN LBSIN225222117 GIAIN LBSIN215131310 SampleFlame ExposureSelf-ExtinguishingOrientationTim e (Seconds)Time (Seconds)1.

7 4" length 1/2" dimension vertical2. Same as (1.) 4" length Same as (3.)6070B. Self extinguishing Characteristics: knit : FAR Sample: 1/4" x 1/2" x 4"Cure:60 minutes at 250 FNote: The following technical information and data should be considered representativeor typical only and should not be used for specification Scotch-Weld Structural Adhesive Film AF 163-2 Technical Datasheet- 4 -C. Metal to Metal Wide Area Blister Detection Shear Strength (psi) 3M Test Method C-2232 Cure: 235 F, 90 minutes, 35 psi, 5 : 3M Scotch-Weld Structural Adhesive Primer EC-3960 Metal: 2024 T-3 Bare.

8 063" thick FPL etched3M Scotch-Weld Structural Adhesive FilmTestAF 163-2 OSTAF 163-2 MAF 163-2 KAF lb/ft2-67 F55004800520054005100540075 F540054005100510050004800180 F370038003700350034003400250 F240024002400240022002600 Product Performance(continued)Note: The following technical information and data should be considered representativeor typical only and should not be used for specification Metal to Metal Overlap Shear Strength (psi) 3M Test Method C-244 orASTM D 10021. Cure Cycle: 250 F, 60 minutes, 20 psi, 1 F/minute rise ratePrimer: 3M Scotch-Weld Structural Adhesive Primer EC-3917 Metal: 2024 T-3 ALCLAD.

9 063" thick unsealed Chromic Acid AnodizedScotch-WeldScotch-WeldScotch-Wel dTe s tAF 163-2 OST FilmAF 163-2M FilmAF 163-2K lb/ft2-67 F540064006200510075 F5200570058005400180 F32003600380038002. Cure Cycle: 250 F, 90 minutes, 25 psi, 4 F/minute rise ratePrimer: NoneMetal: 2024 T-3 Bare .063" thick FPL etchedScotch-WeldScotch-WeldTemperatureA F 163-2L Film .03 lb/ft2AF 163-2K Film .085 lb/ft2-67 F5970643075 F52905990180 F420046003M Scotch-Weld Structural Adhesive Film AF 163-2 Technical Datasheet- 5 -F.

10 Metal to Metal T-Peel Strength (piw) 3M Test Method C-252 Cure Cycle: 250 F, 60 minutes, 20 psig, 1 F/min. rise ratePrimer: 3M Scotch-Weld Structural Adhesive Primer EC-3917 Metal: 2024 T-3 clad .020 in. thick aluminum unsealed Chromic Acid AnodizedPeel Rate: 20" 163-2 OST FilmAF 163-2M FilmAF 163-2K lb/ft2-67 F2525332975 F29444541180 F24403835250 F20302820E. Metal to Metal Blister Detection Shear (psi) 3M Test Method C-265 Cure Cycle: 270 F, 60 minutes, 40 psi, 1 F/min. rise ratePrimer: 3M Scotch-Weld Structural Adhesive Primer EC-3924 BMetal: 2024 T-3 Bare " thick FPL etched3M Scotch-Weld Structural Adhesive FilmTemperatureAF 163-2K.