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FLEXOBOND 442 BLACK

1 of 3 products in this brand
FLEXOBOND 442 BLACK is a thermally conductive polyurethane adhesive with low outgassing properties. It is specifically designed for bonding glass diodes or other stress-sensitive components. This adhesive offers excellent electrical properties and high flexibility. It is well-suited for circuit board assembly and protection in space exploration applications.

Product Type: Reactive Adhesive

Application Area: Aerospace Applications, Circuit Board Connectors

Chemical Family: Polyurethanes (PU)

Features: Good Electrical Properties, Good Flexibility, Low Outgassing, Thermally Conductive

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Chemical Family
Polyurethanes (PU)
Product Type
Reactive Adhesive
Technologies
Adhesives & Sealants
Product Families
Adhesives & Sealants — Bonding & Sealing Chemistry
Elastomeric Adhesives & Sealants

Features & Benefits

Ready-to-Use Product Features
Good Electrical Properties,
Good Flexibility,
Low Outgassing,
Thermally Conductive

Applications & Uses

Markets
Automotive & Transportation,
Electrical & Electronics
Applications
Electrical & Electronics — Parts & Components
Printed Circuit Boards (PCBs)
Automotive & Transportation — Transportation
Aerospace & Aviation
Application Area
Aerospace Applications,
Circuit Board Connectors
Segment
Aerospace
Usage Information
  • Remove the syringe or tube from the freezer and allow to warm to Room Temperature tor about ten minutes. Be sure that all surfaces to be bonded are clean and dry. Apply and cure as recommended. It is acceptable to gel at Room Temperature overnight before heat curing.

Properties

Cured Properties
ValueUnitsTest Method / Conditions
Specific Gravity1.99
Hardness78Shore A
Lap Shear Strength to Aluminum500psi
Thermal Conductivity, 6btu-in/hr-ft²°F
Dielectric Strength370v/mil
Dielectric Constant (at 1 kHz)7.16
Dissipation Factor (at 1 kHz)0.11
Volume Resistivity1x10¹²ohm-cm
Total Mass Loss (at 212°F, cure for 2 hrs)0.471%ASTM E595-84
Collectible Volatlle Condensible Material (at 212°F, cure for 2 hrs)0.011 %ASTM E595-84
Moisture Absorption (at 77°F, in water, 7 days)0.14%
Moisture Absorption (at 200°F, in water, 7 days) 2.91%
Fungi ResistanceNoneASTM E21-90
Uncured Properties
ValueUnitsTest Method / Conditions
Viscosity (at 77°F)Paste
Work Life (at 77°F)4hrs
Recommended Cure (at 180°F)2hrs

Safety & Health

Safety Information
  • Use with adequate ventilation. Avoid contact with skin or clothlng. In case or contact. flush immediately with plenty of water. Keep containers tightly closed when not in use. WARNING: FLEXOBOND 442 BLACK contains an isocyanate which ls a strong skin sensitizer and may cause severe irritation to mucous membranes. Avoid contact with skin and eyes and avoid breathing vapors. In case of skin contact. wash promptly with 99% isopropyl alcohol (rubbing alcohol is NOT suitable). then soap and water. Curing ovens should be ventilated outdoors. All users should wash thoroughly. If un-cured material gets into eyes. flush with water for 15 minutes. Also. call a physician at once.

Packaging & Availability

Regional Availability
  • Europe
  • India/MiddleEast/Africa (IMEA)
Packaging Information
  • FLEXOBOND 442 Black is avallable only premixed. degassed and frozen and packaged in a variety of containers as described on Data Sheet No. 2032.

Storage & Handling

Shelf Life
3 months (at -40°F), 6 months (at (-)100 to (-)120°F)
Storage and Shelf Life Information
  • The Shelf Llfe of FLEXOBOND 442 Black is at least three months when stored at a temperature of -40°F, or colder. Storage at -100°F to -120°F will extend the Shelf Life to six months.