3M™ Scotch-Weld™ Structural Polyurethane Adhesive DP609

Harmonization Code : 3506.91.90.99 |   Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other
Main features
  • Rapid room-temperature curing
  • Flexible structural bonding
  • Approx. 9-minute work life at 23°C

Product Description

3M Scotch-Weld EPX Adhesive DP609 is designed for fast curing at room temperature and delivers strong, durable bonds across a variety of materials. It is particularly effective for bonding plastics as well as painted or primed metal surfaces. With excellent flow from the cartridge and non-sag properties, the adhesive is easy to apply—even on vertical surfaces—while offering reliable gap-filling capability. The product develops handling strength within approximately one hour and continues to build full strength over time, ensuring long-term performance and durability even in demanding conditions and low-temperature environments.

Product Key Features

  • Rapid room-temperature curing for efficient application and assembly
  • Flexible structural bonding suitable for plastics and coated metals
  • Approx. 9-minute work life at 23°C for precise positioning before bonding
  • Handling strength in ~1 hour for faster processing
  • Full strength builds over 24 hours, with continued improvement over time
  • Excellent flow and non-sag formulation for clean application on vertical surfaces
  • Strong gap-filling capability for uneven or irregular joints
  • High flexibility and strain tolerance for durable, long-lasting bonds
  • Maintains performance across a wide temperature range, including low temperatures
  • High toughness and strength retention in demanding environments
Product Family
3M-DP609  
400mL 48.5mL
Beige

Catalog Product

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Packaging
TDS, SDS & Technical documents

Technical Specifications

General Properties
Chemistry Type Polyol/Isocyanate
Color
Color
The color
 Off-White/Brown
Mix Ratio
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
 1:1
Specific Gravity
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume.

For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
 1.03 - 1.12
Work life @25°C
Work life @25°C
Work life is the amount of time we have to work with a material until it is no longer able to be easily worked and applied on a substrate.

It is based on the change in viscosity and it can rely on the application requirements.
 0.15 hours
Physical Properties
Viscosity
Viscosity
Viscosity is a measurement of a fluid’s resistance to flow.

Viscosity is commonly measured in centiPoise (cP). One cP is defined as
the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP.

A product like honey would have a much higher viscosity -around 10,000 cPs-
compared to water. As a result, honey would flow much slower out of a tipped glass than
water would.

The viscosity of a material can be decreased with an increase in temperature in
order to better suit an application
 10,000 - 55,000 mPa.s