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Rulon Bearings

Solvay CYCOM® 7668 Epoxy Resin
Categories: Polymer; Thermoset; Epoxy
Material Notes: CYCOM® 7668 resin is a 350°F (177°C) curing flame retardant epoxy formulated for use with fiberglass in structural laminates and sandwich panels for aircraft exteriors. Woven fabric impregnated with 7668 resin will maintain good tack and drape for at least 15 days at 75°F (24°C) and once cured, exhibits excellent resistance to thermal aging.

Features & Benefits:

  • Four tailored tack levels
  • Excellent flammability
  • Resistant to thermal aging
  • Outstanding tension, compression and sandwich properties
  • Suitable for laminates and sandwich panels
  • Low flow and core movement
  • Meets BMS-8-139 and MIL-R-9300, type 2
  • 350°F (177°C) cure
  • 350°F (177°C) dry service temperature
  • Shelf life 270 days at 10°F (-12°C) or below
  • Handling life 15 days at 75°F (24°C)
  • Mechanical life 30 days at 75°F (24°C)
Applications: Structural laminates and honeycomb core sandwich panels for aircraft exteriors

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 <= 1.5 %<= 1.5 %Style 7781
 <= 1.5 %<= 1.5 %Style 120
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength 372 MPa54000 psi100 hrs aging at 177°C, Style 120, Medium Tack
 427 MPa62000 psi100 hrs aging at 177°C, Style 7668/7781, Low Tack
 434 MPa63000 psi100 hrs aging at 177°C, Style 7668/7781, High Tack
 434 MPa63000 psi100 hrs aging at 177°C, Style 7668/7781, Very Low Tack
 462 MPa67000 psi100 hrs aging at 177°C, Style 7668/7781, Medium Tack
 359 MPa
@Temperature 177 °C		52000 psi
@Temperature 351 °F		Style 120, Medium Tack
 414 MPa
@Temperature 177 °C		60000 psi
@Temperature 351 °F		Style 7668/7781, Very Low Tack
 414 MPa
@Temperature 24.0 °C		60000 psi
@Temperature 75.2 °F		Style 120, Medium Tack
 421 MPa
@Temperature 177 °C		61000 psi
@Temperature 351 °F		Style 7668/7781, High Tack
 427 MPa
@Temperature 177 °C		62000 psi
@Temperature 351 °F		Style 7668/7781, Low Tack
 441 MPa
@Temperature 177 °C		64000 psi
@Temperature 351 °F		Style 7668/7781, Medium Tack
 503 MPa
@Temperature 24.0 °C		73000 psi
@Temperature 75.2 °F		Style 7668/7781, Very Low Tack
 510 MPa
@Temperature 24.0 °C		74000 psi
@Temperature 75.2 °F		Style 7668/7781, High Tack
 510 MPa
@Temperature 24.0 °C		74000 psi
@Temperature 75.2 °F		Style 7668/7781, Low Tack
 517 MPa
@Temperature 24.0 °C		75000 psi
@Temperature 75.2 °F		Style 7668/7781, Medium Tack
Tensile Modulus 20.0 GPa2900 ksi100 hrs aging at 177°C, Style 120, Medium Tack
 23.4 GPa3390 ksi100 hrs aging at 177°C, Style 7668/7781, Very Low Tack
 24.1 GPa3500 ksi100 hrs aging at 177°C, Style 7668/7781, High Tack
 24.1 GPa3500 ksi100 hrs aging at 177°C, Style 7668/7781, Low Tack
 26.2 GPa3800 ksi100 hrs aging at 177°C, Style 7668/7781, Medium Tack
 19.3 GPa
@Temperature 177 °C		2800 ksi
@Temperature 351 °F		Style 120, Medium Tack
 22.1 GPa
@Temperature 24.0 °C		3210 ksi
@Temperature 75.2 °F		Style 120, Medium Tack
 23.4 GPa
@Temperature 177 °C		3390 ksi
@Temperature 351 °F		Style 7668/7781, Very Low Tack
 24.1 GPa
@Temperature 177 °C		3500 ksi
@Temperature 351 °F		Style 7668/7781, High Tack
 24.1 GPa
@Temperature 177 °C		3500 ksi
@Temperature 351 °F		Style 7668/7781, Low Tack
 24.8 GPa
@Temperature 177 °C		3600 ksi
@Temperature 351 °F		Style 7668/7781, Medium Tack
 26.2 GPa
@Temperature 24.0 °C		3800 ksi
@Temperature 75.2 °F		Style 7668/7781, High Tack
 26.2 GPa
@Temperature 24.0 °C		3800 ksi
@Temperature 75.2 °F		Style 7668/7781, Low Tack
 26.2 GPa
@Temperature 24.0 °C		3800 ksi
@Temperature 75.2 °F		Style 7668/7781, Very Low Tack
 26.9 GPa
@Temperature 24.0 °C		3900 ksi
@Temperature 75.2 °F		Style 7668/7781, Medium Tack
Compressive Strength 331 MPa48000 psi100 hrs aging at 177°C, Style 120, Medium Tack
 358 MPa51900 psi100 hrs aging at 177°C, Style 7668/7781, Medium Tack
 358 MPa51900 psi100 hrs aging at 177°C, Style 7668/7781, Low Tack
 393 MPa57000 psi100 hrs aging at 177°C, Style 7668/7781, High Tack
 407 MPa59000 psi100 hrs aging at 177°C, Style 7668/7781, Very Low Tack
 352 MPa
@Temperature 177 °C		51100 psi
@Temperature 351 °F		Style 7668/7781, Low Tack
 358 MPa
@Temperature 177 °C		51900 psi
@Temperature 351 °F		Style 120, Medium Tack
 365 MPa
@Temperature 177 °C		52900 psi
@Temperature 351 °F		Style 7668/7781, High Tack
 365 MPa
@Temperature 177 °C		52900 psi
@Temperature 351 °F		Style 7668/7781, Very Low Tack
 393 MPa
@Temperature 177 °C		57000 psi
@Temperature 351 °F		Style 7668/7781, Medium Tack
 517 MPa
@Temperature 24.0 °C		75000 psi
@Temperature 75.2 °F		Style 7668/7781, High Tack
 545 MPa
@Temperature 24.0 °C		79000 psi
@Temperature 75.2 °F		Style 120, Medium Tack
 552 MPa
@Temperature 24.0 °C		80100 psi
@Temperature 75.2 °F		Style 7668/7781, Low Tack
 572 MPa
@Temperature 24.0 °C		83000 psi
@Temperature 75.2 °F		Style 7668/7781, Medium Tack
 572 MPa
@Temperature 24.0 °C		83000 psi
@Temperature 75.2 °F		Style 7668/7781, Very Low Tack
Compressive Modulus 21.4 GPa3100 ksi100 hrs aging at 177°C, Style 120, Medium Tack
 26.2 GPa3800 ksi100 hrs aging at 177°C, Style 7668/7781, High Tack
 26.2 GPa3800 ksi100 hrs aging at 177°C, Style 7668/7781, Very Low Tack
 26.9 GPa3900 ksi100 hrs aging at 177°C, Style 7668/7781, Low Tack
 29.0 GPa4210 ksi100 hrs aging at 177°C, Style 7668/7781, Medium Tack
 22.8 GPa
@Temperature 177 °C		3310 ksi
@Temperature 351 °F		Style 120, Medium Tack
 23.4 GPa
@Temperature 24.0 °C		3390 ksi
@Temperature 75.2 °F		Style 120, Medium Tack
 25.5 GPa
@Temperature 177 °C		3700 ksi
@Temperature 351 °F		Style 7668/7781, High Tack
 25.5 GPa
@Temperature 177 °C		3700 ksi
@Temperature 351 °F		Style 7668/7781, Very Low Tack
 26.2 GPa
@Temperature 177 °C		3800 ksi
@Temperature 351 °F		Style 7668/7781, Medium Tack
 26.2 GPa
@Temperature 177 °C		3800 ksi
@Temperature 351 °F		Style 7668/7781, Low Tack
 27.6 GPa
@Temperature 24.0 °C		4000 ksi
@Temperature 75.2 °F		Style 7668/7781, High Tack
 28.3 GPa
@Temperature 24.0 °C		4100 ksi
@Temperature 75.2 °F		Style 7668/7781, Very Low Tack
 29.0 GPa
@Temperature 24.0 °C		4210 ksi
@Temperature 75.2 °F		Style 7668/7781, Medium Tack
 29.6 GPa
@Temperature 24.0 °C		4290 ksi
@Temperature 75.2 °F		Style 7668/7781, Low Tack
 
Thermal PropertiesMetricEnglishComments
Maximum Service Temperature, Air 177 °C350 °FDry
 
Descriptive Properties
Climbing Drum Peel18 Nm/mMedium Tack, Style 120, AF 131 Adhesive
 19.9 Nm/mMedium Tack, 7668/7781, AF 131 Adhesive
 19.9 Nm/mVery Low Tack, 7668/7781, AF 131 Adhesive
 20.3 Nm/mHigh Tack, 7668/7781, AF 131 Adhesive
 20.6 Nm/mLow Tack, 7668/7781, AF 131 Adhesive
 20.9 Nm/mVery Low Tack, 7668/7781, FM 355 Adhesive
 21.2 Nm/mHigh Tack, 7668/7781, FM 355 Adhesive
 23.1 Nm/mLow Tack, 7668/7781, FM 355 Adhesive
 24.6 Nm/mMedium Tack, 7668/7781, FM 355 Adhesive
 38 Nm/mMedium Tack, Style 120, FM 355 Adhesive
 52.3 Nm/mHigh Tack, 7668/7781, FM 61 Adhesive
 53.8 Nm/mLow Tack, 7668/7781, FM 61 Adhesive
 54.1 Nm/mMedium Tack, 7668/7781, FM 61 Adhesive
 60.8 Nm/mVery Low Tack, 7668/7781, FM 61 Adhesive

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 view all the property values for this datasheet as they were originally entered into MatWeb.

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PCYTED082 / 180384

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