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Master Bond adhesives

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Kohesi Bond KB 1452 HT-2LO Two component, room temperature curing epoxy for high vacuum applications
Categories: Polymer; Thermoset; Epoxy; Epoxy Adhesive; Epoxy Encapsulant, Unreinforced

Material Notes: Product Highlights:
  • High glass transition temperature
  • First-rate mechanical strength properties
  • Castable up to 3 inches; ideal for potting
  • Superior chemical resistance
  • Exceptional electrical insulation properties
  • Capable of passing NASA low outgassing
Kohesi Bond KB 1452 HT-2LO is a two component, room temperature curing, vacuum compatible epoxy system suitable for bonding, sealing, potting and encapsulation. It has a favorable 100:40 (Part A: Part B) mix ratio by weight or 100:50 (Part A: Part B) mix ratio by volume. This epoxy system offers excellent adhesion to wide variety of substrates including metals, ceramics, most plastics and glass. It 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 1452 HT-2LO is capable of passing NASA low outgassing test (ASTM E-595). It offers an extensive service temperature range of -50°C to +230°C. This adhesive fosters outstanding physical strength properties as well as dimensional stability. It offers minimal shrinkage upon cure and is castable up to 3 inches depth. It offers excellent chemical resistance to a variety of fuels, oils and water. It is amber clear in color. KB 1452 HT-2LO is widely used in aerospace, optical, electro-optical, electronics and specialty OEM applications, where high vacuum compatibility is crucial even at elevated temperatures.

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 30 - 80 cP
@Temperature 23.0 °C
Part B
 1000 - 1800 cP
@Temperature 50.0 °C
Part A
 55000 - 110000 cP
@Temperature 23.0 °C
Part A
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D >= 75
Tensile Strength >= 12200 psi
Tensile Modulus 360000 - 400000 psi
Adhesive Bond Strength >= 2100 psiTensile Lap Shear, Al/Al
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+14 ohm-cm
Dielectric Constant 3.81
@Frequency 60 Hz
Dielectric Strength 440 V/mil
@Thickness 3.17 mm
 
Thermal PropertiesOriginal ValueComments
CTE, linear 35.0 - 40.0 µm/m-°C
Maximum Service Temperature, Air 232 °C
Minimum Service Temperature, Air -50.0 °C
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.62
@Wavelength 589 nm
 
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 45.0 - 75.0 min100 g of mixed epoxy
Shelf Life 12.0 Monthin original unopened containers

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PKOHESI949 / 249128

Rulon Bearings

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