H.B. Fuller ADS-340

H.B. Fuller ADS-340 is a synthetic elastomer-based adhesive/sealant that is hot-applied and offers high-strength bonding to various substrates. It forms a permanent seal against moisture, dust, and air intrusion and exhibits excellent resistance to both interior and exterior environmental conditions.

Product TypeHot Melt Adhesive, Pressure Sensitive Adhesive

Application AreaWindows

Compatible Substrates & SurfacesEthylene Propylene Diene Monomer (EPDM), Ethylene Vinyl Acetate (EVA), Polyethylene (PE)

FeaturesDust-Free, Excellent Strength, Good Moisture Resistance

Technical Data Sheet

Enhanced TDS

Identification & Functionality

Features & Benefits

Labeling Claims
Features and Benefits
  • Extremely resistant to both interior and exterior environmental conditions
  • High bond strength
  • Excellent adhesion to a variety of substrates
  • Foamable using Nordson FoamMelt® equipment
  • Resistant to environmental exposure

Applications & Uses

Application Area
Typical Applications
  • ADS-340 is typically used for sealing of fixed window modules, door water deflectors, and windshield reveal moldings.
  • ADS-340 is designed to provide high bond strengths to a variety of substrates such as polyethylene, EVA, EPDM, and automotive paint systems.
General Instructions

ADS-340 can be processed with standard hot melt pumping equipment at temperatures of 150°C to 175°C (300°F to 350°F).

Recommended application temperatures for use with Nordson FoamMelt™ are 163°C to 185°C (325°F to 365°F).

Clean Up:If disassembly of ADS-340 is desired, the compound may be removed by grasping the compound and rapidly (in a snapping motion) pulling it from the substrate. Any residual traces of the adhesive may be removed with an aliphatic solvent such as mineral spirits followed by a wipe with a 50/50 alcohol/water solution.


Technical Data
ValueUnitsTest Method / Conditions
Peel Strength (40% foamed 5mm diameter bead)10000.0N/mGMN6309
Brookfield Thermosel Viscosity (at 350°F)7000.0cPASTM D2452
Cold Slam (at -29°C)Pass 5 slamsGM9773P
Solid Content99.9%
Cone Penetration (Unfoamed material, 300g total load)125.0dmmASTM D217
Specific Gravity0.96ASTM D71
Application Temperature150 - 185°C
Service Temperature- 29 - 80°C

Meets requirements of:

Chrysler : MS-CC-257 Type B

GM : GMN6809

Packaging & Availability

Packaging Type
Regional Availability
  • North America
Available Packaging
  • ADS-340 Sealant is available in 55 gallon drums as a standard package.

Storage & Handling

Shelf Life
12 Months
Storage Conditions

Store material in original unopened packaging at temperatures Beteen 4°C to 43°C (40°F to 110°F). Shelf life is 12 months minimum when stored as recommended.