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Master Bond adhesives

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Hexcel® HexFlow® RTM 120/HY 2954 120°C Epoxy System for RTM 2 Component System  (discontinued **)
Categories: Polymer; Thermoset; Epoxy; Epoxy Cure Resin

Material Notes: RTM 120/HY2954 is a two component system, developed for the manufacture of high performance Aerospace and Industrial composite parts using the Advanced Resin Transfer Molding Process.

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Physical PropertiesOriginal ValueComments
Density 0.940 - 0.950 g/cc
@Temperature 25.0 °C
HY2954 cycloaliphatic amine hardener; ISO 1675
 1.10 - 1.20 g/cc
@Temperature 25.0 °C
RTM 120 bisphenol epoxy resin containing reactive diluent; ISO 1675
Viscosity 70 - 120 cPHY2954 cycloaliphatic amine hardener; DIN 53015
 100 - 140 cPRTM 120 bisphenol epoxy resin containing reactive diluent; DIN 53015
 >= 100 cP
@Temperature 60.0 °C
Initial Mix Viscosity (Hoeppler)
 200 cP
@Temperature 40.0 °C
Initial Mix Viscosity (Hoeppler)
 500 - 700 cP
@Temperature 25.0 °C
Initial Mix Viscosity (Hoeppler)
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Yield 71.0 - 77.0 MPaCure: 1h/80°C/140°C; ISO R 527-1966
 822 MPaTensile Warp, Dry/RT; Pr EN 2561
 829 MPa
@Temperature 80.0 °C
Tensile Warp, Wet; Pr EN 2561
Elongation at Break 4.5 - 5.5 %ISO R 527-1966
Tensile Modulus 66.0 GPaTensile Warp, Dry/RT; Pr EN 2561
 57.0 GPa
@Temperature 80.0 °C
Tensile Warp, Wet; Pr EN 2561
Compressive Yield Strength 648 MPaCompression Warp, Dry/RT; Pr EN 2850
 689 MPaCompression Weft, Dry/RT; Pr EN 2850
 401 MPa
@Temperature 80.0 °C
Compression Warp, Wet; Pr EN 2850
 475 MPa
@Temperature 80.0 °C
Compression Weft, Wet; Pr EN 2850
Compressive Modulus 61.0 GPaCompression Warp, Dry/RT; Pr EN 2850
Fracture Toughness 0.700 MPa-m½PM 258-0/90
Shear Strength 68.0 MPaI.L.S. Warp, Dry/RT; Pr EN 2563
 51.0 MPa
@Temperature 80.0 °C
I.L.S. Warp, Wet; Pr EN 2563
 
Thermal PropertiesOriginal ValueComments
Glass Transition Temp, Tg 80.0 - 87.0 °FCure: 4h/80°C; Post cure: None
 123 - 130 °FCure: 1 h/80°C; Post cure: 4 h/120°C
 135 - 142 °FCure: 20 min./120°C; Post cure: 4 h/145°C
 136 - 143 °FCure: 1 h/80°C; Post cure: 4 h/160°C
Flash Point >= 175 °CHY2954 cycloaliphatic amine hardener
 >= 185 °CRTM 120 bisphenol epoxy resin containing reactive diluent
 
Optical PropertiesOriginal ValueComments
Gardner Color Number <= 2.0RTM 120 bisphenol epoxy resin containing reactive diluent
 <= 3.0HY2954 cycloaliphatic amine hardener
 
Processing PropertiesOriginal ValueComments
Gel Time 3.00 - 4.00 min
@Temperature 140 °C
 7.00 - 9.00 min
@Temperature 120 °C
 10.0 - 12.0 min
@Temperature 110 °C
 16.0 - 18.0 min
@Temperature 100 °C
 35.0 - 45.0 min
@Temperature 80.0 °C
 90.0 - 120 min
@Temperature 60.0 °C
 
Descriptive Properties
ColorClear liquidHY2954 cycloaliphatic amine hardener; As-supplied form
 Clear, Pale yellow liquidRTM 120 bisphenol epoxy resin containing reactive diluent; As-supplied form
Epoxy Content (Eq/kg)5.7-6ISO 3001

**
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