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Kohesi Bond KB 1040 AO-1LP Two component, room temperature curing, thermally conductive epoxy
Categories: Polymer; Thermoset; Epoxy; Epoxy Adhesive; Epoxy Encapsulant, Unreinforced

Material Notes: Product Highlights:
  • Superior thermal conductivity
  • Very low coefficient of thermal expansion
  • Phenomenal dimensional stability
  • Excellent flow properties
  • Outstanding electrical insulation properties
  • Long working life
Kohesi Bond KB 1040 AO-1LP is a two component, room temperature curing epoxy system suitable for bonding, sealing, potting and encapsulation. It has a favorable 10:1 (Part A: Part B) mix ratio by weight. It offers high thermal conductivity and offers a very long working life. Its stellar heat transfer capabilities and flow characteristics make it fitting for potting applications. This epoxy system readily 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 1040 AO-1LP can withstand severe thermal cycling and provides superior physical strength properties and dimensional stability. It offers an extensive service temperature range of -50°C to +120°C. KB 1040 AO-1LP adheres well to a wide variety of substrates including metals, ceramics, most plastics and glass. It also offers excellent chemical resistance to a variety of fuels, oils and water. Part A has a gray color and Part B has a clear color. Owing to its Excellent performance and vacuum compatibility KB 1040 AO-1LP is widely used in aerospace, electronics and related industries.

Typical Applications:

  • Bonding
  • Sealing
  • Coating
  • Potting
  • Encapsulation

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 PropertiesOriginal ValueComments
Viscosity 300 - 500 cPPart B
 10000 - 20000 cPPart A
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D >= 85
Tensile Strength >= 6200 psi
Compressive Strength >= 15500 psi
Adhesive Bond Strength >= 1300 psiTensile Lap Shear, Al/Al
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+14 ohm-cm
Dielectric Constant 4.82
@Frequency 60 Hz
Dielectric Strength 420 V/mil
@Thickness 3.17 mm
 
Thermal PropertiesOriginal ValueComments
CTE, linear 18.0 - 25.0 µm/m-°C
Thermal Conductivity 1.40 - 1.50 W/m-K
Maximum Service Temperature, Air 120 °C
Minimum Service Temperature, Air -50.0 °C
 
Processing PropertiesOriginal ValueComments
Cure Time 2.00 - 3.00 hour
@Temperature 90.0 °C
Option 2
 3.00 - 5.00 hour
@Temperature 70.0 - 90.0 °C
Optimum Cure: overnight at 23°C plus 3 - 5 hours at 70°C - 90°C
 48.0 - 72.0 hour
@Temperature 23.0 °C
Option 1
Working Life 150 - 240 min100 g of mixed epoxy
Shelf Life 6.00 Monthin original unopened containers

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PKOHESI910 / 249089

Specialty Compounds RTP Company

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