H.B. Fuller HL6369

H.B. Fuller HL6369 is a hot melt adhesive that has a long open time, excellent hot tack, and high as well as low temperature resistance. It shows good adhesion to metal and is suitable for bonding fiberglass insulation to metal as well as many other general assembly applications. This product has good initial handling strength and reaches its ultimate strength in about 72 hours.

Product Type: Hot Melt Adhesive, Insulation Adhesive

Application Area: Furniture, HVAC Applications, Household, Kitchen, Mattress, Upholstery, Woodwork

Compatible Substrates & Surfaces: Composites, Fiberglass, Fibers & Fabrics, Foam, Metal, Wood

Chemical Family: Polyalphaolefins (PAO), Polyolefins

Features: Fast Setting, High Temperature Resistance, Hot Tack Strength, Long Open Time, Low Temperature Resistant

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Application and Cleaning Instructions

Typical equipment: A hot melt application equipment capable of maintaining the suggested adhesive temperature noted above and appropriate for the application. An inert nitrogen blanket is suggested (not required).

General application:

  • Purge the previous hot melt adhesive from the equipment.
  • Set the equipment temperature to the suggested settings above. 
  • Adjust the pump pressure for the desired adhesive amount.
  • The open and set time characteristics may be modified with small adjustments to the amount of the applied adhesive and equipment temperature settings. Cleaning: Consult the equipment manufacturer for cleanup procedures.


Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Color3 - 9-Gardner
Viscosity (at 325°F)6300.0cP-
Specific Gravity0.93--
Softening Point298 - 314°F-
Application Temperature350 - 400°F-

Safety & Health

Safety Advice

To minimize the risk of burns, we recommend the use of eye protection and protective clothing when working near a hot melt applicator. To minimize the risk of flammable vapors, do not exceed a melt temperature above 400°F. Prevent the build-up of vapors.

Packaging & Availability

Country Availability
Regional Availability
  • Latin America
  • North America
  • USA

Storage & Handling

Shelf Life
365 Days
Storage Conditions

Clean and dry conditions above 20°F and below 120°F in the original container.