Product Announcement from Dow Automotive Systems


BETAMATE™ polyurethane structural adhesives-Image

Providing high-performance adhesive to aluminum, steel and other materials, BETAMATE™ polyurethane structural adhesives replace welds and mechanical fasteners, helping improve vehicle durability, reduce weight and reduce manufacturing costs.

Applications

BETAMATE structural adhesives can be used as a glue to replace welds and mechanical fasteners in joining a variety of similar and dissimilar substrates, without degreasing or priming. Their use can help reduce fatigue and failure commonly found around spot welds and fasteners.

  • Full aluminum vehicle bodies
  • Aluminum closures
  • Cast aluminum to profile bonding
  • Composite body-in-white parts integration
  • Magnesium suspension struts
  • Aluminum chassis/powertrain components
  • Aluminum or composite roof bonding
  • Bonded seat structures

Application Methods

As a continuous bondline, swirled, sprayed and extruded. Technical Service and Development is offered to assure proper application techniques.

Benefits

  • Increases car body stiffness for improved handling and acoustic performance
  • Reduces costs by reducing weld spots, downgauging steel and using mid-steel in place of high-strength steel
  • Reduces vehicle weight, thereby reducing CO2 emissions
  • Streamlined assembly process by overcoming weld point access issues
  • Modulus above 1,000 MPa
  • Glass transition temperature above 80°C
  • Impact resistance f(t) from -40°C to 80°C
  • Adhesion to oily substrates
  • Wash-off resistance
  • Contributes to lightweight design flexibility and safety of the entire vehicle
  • Joins dissimilar and hard-to-weld substrates, including advanced high-strength steel, aluminum and magnesium
  • Improves chassis and body durability by reducing fatigue and failure commonly found around spot welds and fasteners
  • Seals against environmental conditions that cause corrosion
  • Potential to lower cost by reducing welds and gauge, without losing mechanical properties
  • Lab- and full-vehicle testing of new-generation, crash-resistant structural adhesives shows improved crash-resistant performance without any weight increase
 
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