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Master Bond adhesives

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Kohesi Bond KB 1452 HT-2CRAO Two component, room temperature curing, thermally conductive, cryogenic epoxy
Categories: Polymer; Thermoset; Epoxy; Epoxy Adhesive; Epoxy Encapsulant, Unreinforced

Material Notes: Product Highlights:
  • Very high thermal conductivity
  • Good flow properties
  • Castable up to 3 inches depth and more
  • Outstanding chemical resistance
  • Cryogenic serviceability
  • Capable of passing NASA low outgassing
Kohesi Bond KB 1452 HT-2CRAO is an exclusive two component epoxy system suitable for bonding, sealing, coating, potting and encapsulation applications. It has a favorable 100:40 (Part A: Part B) mix ratio by weight. It offers excellent thermal conductivity and an extremely low coefficient of thermal expansion (CTE). 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. Rapid cures are achievable with a straight heat cure as well at elevated temperatures. KB 1452 HT-2CRAO offers an extensive service temperature range of 4K (-269.15°C) to +200°C. It offers outstanding physical strength properties and dimensional stability. KB 1452 HT-2CRAO adheres well to a wide variety of substrates including metals, ceramics, most plastics and glass. In addition to superior electrical insulation, it also offers excellent chemical resistance to a variety of organic and inorganic acids, solvents, alkali, aromatic hydrocarbons, oils and water. Additionally it is capable of passing NASA standards for low outgassing (ASTM E-595). Owing to its high thermal conductivity and cryogenic serviceability, KB 1452 HT-2CRAO is widely used in electronics, aerospace, semiconductor and various OEM applications.

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 200 - 1000 cPPart B
 50000 - 125000 cPPart A
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D >= 80
Tensile Strength >= 7600 psi
Tensile Modulus >= 510000 psi
Adhesive Bond Strength >= 1300 psiTensile Lap Shear, Al/Al
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+12 ohm-cm
 
Thermal PropertiesOriginal ValueComments
CTE, linear 15.0 - 20.0 µm/m-°C
Thermal Conductivity 1.40 - 1.50 W/m-K
Maximum Service Temperature, Air 200 °C
Minimum Service Temperature, Air -269 °C
 
Processing PropertiesOriginal ValueComments
Cure Time 2.00 - 3.00 hour
@Temperature 90.0 °C
Option 2
 48.0 - 72.0 hour
@Temperature 23.0 °C
Option 1
Working Life 75.0 - 125 min100 g of mixed epoxy
Shelf Life 6.00 Monthin original unopened containers

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PKOHESI946 / 249125

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