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Ensinger PEI

Kohesi Bond KB 1686 MF Two component, fast setting, nickel filled epoxy for bonding and sealing
Categories: Polymer; Thermoset; Epoxy; Epoxy Adhesive; Epoxy, Electrically Conductive

Material Notes: Product Highlights:
  • Easy mix ratio of 1:1 by weight or volume
  • Outstanding dimensional stability
  • Superior thermal conductivity
  • High lap shear strength (> 2,100 psi)
  • Nickel filled, electrically conductive
  • 100% solids system
Kohesi Bond KB 1686 MF is a two component, nickel filled epoxy system suitable for bonding, coating and sealing. It has a convenient 1:1 (Part A: Part B) mix ratio by weight or volume. Firstly, it offers very good electrical conductivity and dimensional stability. This epoxy system rapidly cures at room temperature and can achieve faster cures at elevated temperatures. The optimal cure schedule is an overnight room temperature set-up followed by a heat cure at 70°C - 90°C for 3 - 5 hours. KB 1686 MF offers a volume resistivity of 5 - 10 ohm-cm. It is ideal for use in static dissipation and EMI/RFI shielding applications. It offers an extensive service temperature range of -50°C to +120°C. It is an outstanding adhesive that offers superb physical strength properties, allowing it to adhere well to a wide variety of substrates including metals, ceramics, most plastics and glass. In addition to superior electrical and thermal conductivity (1.3 - 1.4 W/m/K), it also offers excellent chemical resistance to various cleaning agents, oils and water. Part A and Part B are gray in color. It has a thixotropic paste like consistency and a very low coefficient of thermal expansion (CTE). Owing to its versatile performance, KB 1686 MF is widely used in electronics, aerospace, electrical, semiconductor, microwave and many OEM applications.

Typical Applications:

  • Bonding
  • Sealing
  • Coating

Information provided by Kohesi Bond Custom Engineered Adhesives

Vendors: Kohesi Bond is a pioneer in manufacturing over 300 grades of custom engineered adhesives, sealants, coatings, potting and encapsulation compounds. Our first-rate adhesives are tailor-fitted to meet your exact specifications and offer superior strength and performance in your application. Learn more about Kohesi Bond’s industry-ready products at kohesibond.com.

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Physical PropertiesMetricEnglishComments
Viscosity >= 510000 cP>= 510000 cPPart A, thixotropic
 >= 905000 cP>= 905000 cPPart B, thixotropic
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D >= 80>= 80
Tensile Strength >= 42.1 MPa>= 6100 psi
Tensile Modulus >= 3.52 GPa>= 510 ksi
Compressive Strength >= 159 MPa>= 23000 psi
Adhesive Bond Strength >= 11.0 MPa>= 1600 psiTensile Lap Shear, Al/Al
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 5.0 - 10 ohm-cm5.0 - 10 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear 25.0 - 35.0 µm/m-°C13.9 - 19.4 µin/in-°F
Thermal Conductivity 1.50 - 1.60 W/m-K10.4 - 11.1 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 120 °C248 °F
Minimum Service Temperature, Air -50.0 °C-58.0 °F
 
Processing PropertiesMetricEnglishComments
Cure Time  60.0 - 120 min
@Temperature 90.0 °C
1.00 - 2.00 hour
@Temperature 194 °F
Option 2
 180 - 300 min
@Temperature 70.0 - 90.0 °C
3.00 - 5.00 hour
@Temperature 158 - 194 °F
Optimum Cure: overnight at 23°C plus 3 - 5 hours at 70°C - 90°C
 2880 - 4320 min
@Temperature 23.0 °C
48.0 - 72.0 hour
@Temperature 73.4 °F
Option 1
Working Life 15.0 - 20.0 min15.0 - 20.0 min100 g of mixed epoxy
Shelf Life 3.00 - 6.00 Month3.00 - 6.00 Monthin original unopened containers
 
Descriptive Properties
Mixing Ratio1:1 by weight or volumePart A : Part B

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PKOHESI964 / 249143

Proto3000 – 3D Engineering Solutions

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