Ultrabond 758

Ultrabond 758

Ultrabond 758

Product catalog summary
Product Description
Hernon Ultrabond 758 is a low viscosity, self-leveling UV curable potting compound designed for high performance, fast curing, coating, and encapsulating of electronic components. It is also suitable for shallow potting applications.
Product Benefits
  • UV fluorescence for inspection
  • 100% solid system with no solvents
  • Excellent adhesion and environmental resistance
  • Good gap filling properties
  • No shrinkage from solvent evaporation
  • Rapid room temperature cure
Typical Properties (Uncured)
  • Chemical Type: Modified Acrylic Ester
  • Appearance: Clear liquid
  • Specific Gravity @ 25°C: 1.04
  • Viscosity @ 25°C: 300 cP
Typical Curing Performance
Ultrabond 758 cures rapidly at room temperature when exposed to high intensity UV light (365 nm). Fixture time on glass is 5 seconds, and tack-free time is 25 seconds.
Typical Properties (Cured)
  • Coefficient of thermal expansion: 80 × 10-6 K-1
  • Coefficient of thermal conductivity: 0.1 W/(m·K)
  • Tensile strength: 3250 psi
  • Modulus: 108000 psi
  • Elongation: 85%
  • Hardness: Shore B 95
  • Temperature range: -54 to 177°C (-65 to 350°F)
  • UV depth of cure: 2.54 mm (0.10 in.)
Electrical Properties
  • Dielectric Strength: 36 kV/mm
  • Dielectric Constant at 1 kHz: 4.25
  • Dissipation Factor at 1 kHz: 0.03
  • Volume Resistivity: 1.7 x 1015 Ω·cm
General Information
Not recommended for use in pure oxygen or oxygen-rich systems and should not be used as a sealant for chlorine or other strong oxidizing materials. For safe handling, consult the MSDS.
Factors Affecting UV Curing
  • Dark surfaces increase cure time
  • Full range UV lamps cure faster than filtered sources
  • UV sources degrade over time; check with a radiometer
  • Thicker films require longer cures
  • Light intensity decreases with distance from UV source
  • Some clear plastics may contain UV inhibitors
Precautions When Using UV Lamps
  • Do not look directly at UV source
  • Wear protective UV goggles and clothing
  • Use in a well-ventilated area
  • Provide shielding around high intensity UV sources
Storage
Store in a cool, dry location in unopened containers at 46ºF to 82ºF (8ºC to 28ºC). Optimal storage is at the lower half of this range. Do not return unused material to its original container.
Dispensing Equipment
Hernon offers semi and fully automated dispensing equipment. Contact Hernon Sales for more information.
Disclaimer
Information is believed to be reliable but not guaranteed. Users should conduct their own tests to determine product suitability. Hernon Manufacturing, Inc. is not liable for any damage or loss from product use.
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Catalog excerpts

Ultrabond 758-1

High Performance Adhesives and Sealants \ ' , Technical Data Sheet December 2009 Ultrabond® 758 Page 1 of 2 Product Description Hernon® Ultrabond® 758 Is a low viscosity self leveling UV curable potting compound formulated to provide high performance, fast curing, coating and encapsulating of electronic components. This product is also used for shallow potting applications. Product Benefits UV fluorescence for in-process inspection 100% solid system (no solvents) Excellent adhesion to a variety of surfaces Excellent environmental resistance Good gap filling properties No shrinkage due to solvent evaporation Rapid room temperature cure Typical Properties (Uncured) General Information This product is not recommended for use in pure oxygen and/or oxygen rich systems and should not be selected as a sealant for chlorine or other strong oxidizing materials. For safe handling information on this product, consult the Material Safety Data Sheet (MSDS).

 Open the catalog to page 1
Ultrabond 758-2

Hernon Technical Data Sheet Ultrabond758 Factors Affecting UV Curing • Dark surfaces lengthen cure time. • Full range (UV-A, B & C) lamps provide faster cures than filtered sources. • All UV sources degrade with use. Check output with a radiometer. • Thicker films require longer cures. • Light intensity decreases as distance from UV source increases. • Some clear plastics may contain UV inhibitors. Precautions When Using UV Lamps • Never look directly at UV source. • Wear protective UV goggles • Do not expose bare skin to high intensity UV light. • Wear protective clothing. • Use in a well-ventilated...

 Open the catalog to page 2
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