3M TE031

Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide

3M TE031

Main features

  • 30-Second Handling Strength
  • Two-Minute Assembly Window
  • Flexible Plastic Bonding

Product Description

3M Scotch-Weld PUR Adhesive TE031 is a one-part, warm-applied polyurethane reactive adhesive for fast plastic assembly. The 100% solids material is applied at 121 deg C, provides a typical two-minute open time, and reaches handling strength in about 30 seconds under the stated test definition. Moisture cure builds a flexible bond, with strong peel results on polystyrene, acrylic, polycarbonate, PVC, and fiber-reinforced plastic. Moisture must reach the bondline: do not use TE031 for metal-to-metal, glass-to-glass, or metal-to-glass joints, and avoid untreated polyolefins. The extrudable format is suitable for cartridge or bulk PUR dispensing equipment.

Key features

  • Fast handling strength: Reaches the stated 34 kPa handling-strength threshold in about 30 seconds at room temperature.
  • Two-minute assembly window: Provides a defined open time for joining and fixing parts after warm application.
  • Flexible plastic bonding: A typical 725% cured elongation allows the adhesive layer to deform before breaking.

Applications

Applications include bonding polystyrene, acrylic, polycarbonate, PVC, wood, and fiber-reinforced plastic where moisture reaches the bondline; exclude untreated polyolefins and metal-to-metal, glass-to-glass, or metal-to-glass joints.

Product Family

3M TE031

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Color
The color
White/Off-White
Density (g)
1.04 g/cm3
Physical Properties
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
at 121 °C (250 °F): 13,000 mPa.s

Additional Information

Technical properties

As-supplied / before-processing properties

Open and handling times are typical and vary with adhesive temperature and application conditions.

PropertyValueUnitMethod / condition
ColorWhite to off-whiteSolid state
Viscosity13,000cP121 deg C; Brookfield Thermosel, spindle 27
Molten density1.04g/cm^3Typical
Open time2minutes3.2 mm bead on a non-metallic surface; room-temperature environment
Time to handling strength30secondsTime to support a 34 kPa tensile load; room-temperature environment
Application temperature121deg CWarm-applied adhesive
Technical properties

After-processing / final-state properties

Mechanical and peel values are typical for the stated specimens, dwell, temperature, and test configuration.

PropertyValueUnitMethod / condition
Shore D hardness50ASTM D2240; cured material at 23 deg C
Modulus39MPaASTM D638 / ISO 527; 7 d at 23 deg C; 0.3 to 0.4 mm film
Elongation at break725%ASTM D638 / ISO 527; 7 d at 23 deg C; 0.3 to 0.4 mm film
Tensile strength at break27MPaASTM D638 / ISO 527; 7 d at 23 deg C; 0.3 to 0.4 mm film
180 deg peel adhesion114N/cmPolystyrene; 168 h dwell at 25 deg C; 51 mm/min
180 deg peel adhesion135N/cmAcrylic; 168 h dwell at 25 deg C; 51 mm/min

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