H.B. Fuller HL9647

H.B. Fuller HL9647 is an isocyanate-free, hot melt, moisture-curing adhesive. This product forms tough, heat-resistant bonds after full cure. Its cure time is a function of moisture availability and ambient temperatures. The typical cure times of this product at a relative humidity of 30 - 60% and ambient temperatures of 60 - 80°F vary from 3 - 10 days, depending on the substrate and coat weight. The open time of this product varies depending on the substrate and method of application. In a thin film, open times range from 2 to 10 seconds, and bead open times range from 30 to 60 seconds. It bonds well to nonpolar plastics, metals, paper, and wood.

Chemical Family: Polyolefins

Product Type: 1K (1 component) Adhesive, Hot Melt Adhesive, Reactive Adhesive, Solvent free (100% Solids) Adhesive

Application Area: Automotive Trims

Compatible Substrates & Surfaces: Metal, Paper, Plastics, Wood

Features: Excellent Substrate Adhesion, Good Toughness, Heat Resistance

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Application Area
Compatible Substrates & Surfaces
Cure Method
Application Instructions

This adhesive is designed to be used with platen or reservoir type melters that will dispense adhesive from 5 gallon pails and 55 gallon drums. Consult the equipment manufacturer for start-up, shut-down and cleanup procedures. If the equipment is to be shut down for extended periods of time we suggest purging the system with NP2038L 251. Partially used pails or drums should be purged with a dry inert gas and resealed between uses.

Warning: Moisture contained in the air or from wet surroundings will cure this adhesive. Cured adhesive cannot be melted and may cause equipment damage. Thoroughly clean material from all equipment surfaces. This product is designed to have less than a twofold increase in viscosity over 12 hours at normal application temperature in the absence of moisture. To clean up spilled adhesive, allow the adhesive to cool to room temperature and scrape off heavy deposits with a putty knife. Any uncured residual film may be wiped clean with a common solvent (toluene, MEK). Clean up the adhesive before it cures.


Off white liquid
Material Specifications
ValueUnitsTest Method / Conditions
Open Time (Thin film)2 - 10s-
Open Time (Bead)30 - 60sBead
Cure Time (at 60 - 80°F, 30 - 60% RH)3 - 10days-
Solid Content100.0%-
Density7.35 - 7.55lb/gal-
Specific Gravity0.88 - 0.9-ASTM D1875
Rheological Properties
ValueUnitsTest Method / Conditions
Viscosity (at 300°F)13000.0cP-
Application Temperature300 - 350°F-

Packaging & Availability

Regional Availability
  • North America

Storage & Handling

Shelf Life
6 Months
Storage Conditions

In original sealed packaging protected from sun, dust, moisture and high temperatures. Store under clean and dry conditions at constant room temperature.