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USP Class VI Adhesives
USP Class VI Approved Adhesives for Medical Device Applications
Master Bond’s biocompatible adhesives are designed to meet the needs of medical device manufacturers. Compounds withstand various types of sterilization methods.

Epoxy Technology EPO-TEK® 302-3M Optically Transparent Epoxy
Categories: Polymer; Thermoset; Epoxy

Material Notes: EPO-TEK® 302-3M is a two component epoxy used for optical, medical, fiber optic, and semiconductor applications. The epoxy is good for adhesive joining, sealing, potting, or as a coating.

Advantages & Application Notes:

  • Low viscosity, clear and colorless epoxy is well suited for potting applications, and for transmitting VIS or NIR light in opto-circuits.
  • Excellent water, chemical, and solvent resistant properties including 10% nitric acid, acetone, hexane, and dichlorormethane.
  • Suggested Applications:
    • Fiber Optic/Optical:
      • Potting and encapsulation; lens and prism bonding for Scientific / OEM instruments; LED encapsulant.
      • Transmission in the VIS/NIR range from 350 – 1550 nm. Can be used in the optical pathway.
      • Potting or sealing the fiber into the snout of the opto-package.
      • Adhesive for V-groove, fiber arrays or lens arrays.
      • Bonding optical fibers into ferrules. Fibers of glass or plastic. Ferrules of glass, quartz, stainless steel, kovar, or ceramic.
    • Semiconductor:
      • Recommended for underfilling of flip chips or SMDs on PCB; can also be used for COB glob top process using a DAM/FILL method; can resist 85/85 moisture soaks, as well as Tcycles and Tshocks.
    • Medical:
      • Wicking into fiber optic bundles for endoscopes or light guides; very good autoclave resistance.
      • Adhesion to stainless steel metal, ceramic, titanium and most plastics.
      • USP Class VI bio-compatible.
    • Passes NASA low outgassing standard ASTM E595 with proper cure
    • This product has been tested and satisfies low halogen requirements.

    Information Provided by Epoxy Technology

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
Specific Gravity 0.960 g/cc0.960 g/ccPart B
 1.20 g/cc1.20 g/ccPart A
Viscosity 800 - 1600 cP
@Temperature 23.0 °C
800 - 1600 cP
@Temperature 73.4 °F
100 rpm
 
Chemical PropertiesMetricEnglishComments
Ionic Impurities - Na (Sodium) 10 ppm10 ppm
Ionic Impurities - K (Potassium) 4.0 ppm4.0 ppm
Ionic Impurities - Cl (Chloride) 42 ppm42 ppm
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 8080
Tensile Modulus 1.73 GPa252 ksiStorage
Shear Strength >= 13.8 MPa>= 2000 psiLap
 >= 23.4 MPa>= 3400 psiDie
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 1.00e+13 ohm-cm>= 1.00e+13 ohm-cm
Dielectric Constant 3.39
@Frequency 1000 Hz
3.39
@Frequency 1000 Hz
Dissipation Factor 0.0061
@Frequency 1000 Hz
0.0061
@Frequency 1000 Hz
 
Thermal PropertiesMetricEnglishComments
CTE, linear 56.0 µm/m-°C31.1 µin/in-°FBelow Tg
 193 µm/m-°C107 µin/in-°FAbove Tg
Maximum Service Temperature, Air 175 °C347 °FContinuous
 250 °C482 °FIntermittent
Minimum Service Temperature, Air -55.0 °C-67.0 °FContinuous
 -55.0 °C-67.0 °FIntermittent
Glass Transition Temp, Tg >= 55.0 °C>= 131 °FDynamic Cure 20—200°C /ISO 25 Min; Ramp 10—200°C @ 20°C/Min
Decomposition Temperature 351 °C664 °FDegradation Temperature
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.5446
@Wavelength 589 nm
1.5446
@Wavelength 589 nm
uncured
Transmission, Visible >= 95 %
@Wavelength 460 - 1620 nm
>= 95 %
@Wavelength 460 - 1620 nm
Spectral
 
Processing PropertiesMetricEnglishComments
Cure Time  180 min
@Temperature 65.0 °C
3.00 hour
@Temperature 149 °F
 1440 min
@Temperature 23.0 °C
24.0 hour
@Temperature 73.4 °F
Pot Life 60 min60 min
Shelf Life 12.0 Month
@Temperature 25.0 °C
12.0 Month
@Temperature 77.0 °F
 
Compliance PropertiesMetricEnglishComments
USP Class VI YesYes
 
Descriptive Properties
ColorClear/ColorlessPart A
 Clear/ColorlessPart B
ConsistencyPourable liquid
Ionic Impurities NH41 ppm
Mix Ratio by Weight100:45
Number of ComponentsTwo
Weight Loss0.77%250°C
 1.22%300°C

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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PPOXYT110 / 141149

USP Class VI Adhesives
USP Class VI Approved Adhesives for Medical Device Applications
Master Bond’s biocompatible adhesives are designed to meet the needs of medical device manufacturers. Compounds withstand various types of sterilization methods.

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