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3M™ Scotch-Weld™ Epoxy Adhesive DP190 Translucent and Grey – Fast-curing structural bonding for metals, plastics, and composites.

Item Name: 3M™ Scotch-Weld™ Epoxy Adhesive DP190 Translucent and Grey
Manufacturer: 3M
• Technologies: Two-component epoxy/amine system
Color: Translucent (DP190 Translucent), Grey (DP190 Grey)
Cure Type: Ambient temperature cure, full cure 7–14 days at 24°C; accelerated heat curing possible
Package Size: Bulk containers and duo-pak cartridges; Contact to Techniq VN for details.
Shelf Life: 24 months (bulk), 15 months (duo-pak)

1. Product Overview

3M™ Scotch-Weld™ Epoxy Adhesive DP190 is a two-part, room-temperature curing epoxy available in translucent and grey versions. It has a 1:1 mix ratio by volume, a long worklife (80–90 minutes), and cures to a flexible bond with high peel and shear strength.

  • DP190 Translucent: Flexible, clear-to-amber, with higher elongation.

  • DP190 Grey: Stronger, stiffer cure, excellent shear strength, good environmental aging resistance.


2. Applications

  • Bonding of metals, plastics, glass, wood, and composites.

  • Suitable for structural bonding where flexibility and peel strength are required.

  • Used in electronics, general industrial assembly, maintenance, and repair.

  • Compatible with 3M™ EPX™ Applicator System for precision mixing and dispensing.

3. Typical Properties

Unmixed Components

Property DP190 Translucent DP190 Grey Notes
Base Resin Epoxy/Amine Epoxy/Amine
Viscosity @ 24 °C (Base) 2,000 – 8,000 cps 75,000 – 150,000 cps Brookfield RVF
Viscosity @ 24 °C (Accelerator) 7,000 – 15,000 cps 40,000 – 80,000 cps Brookfield RVF
Density (Base) 9.3 – 9.7 lb/gal 11.0 – 11.4 lb/gal
Density (Accelerator) 8.2 – 8.6 lb/gal 10.6 – 11.0 lb/gal
Color (Base) Clear White
Color (Accelerator) Amber Grey
Mix Ratio by Volume 1:1 1:1
Mix Ratio by Weight 1.15:1 1.06:1
Worklife (23 °C, 2 g) 80 min 90 min

Cured Properties

Property DP190 Translucent DP190 Grey Notes
Color Translucent Grey
Shore D Hardness 35 60 ASTM D2240
Tack-Free Time ~4 hrs ~6 hrs
Handling Strength 6 hrs 8–12 hrs Time to reach 50 psi OLS
Full Cure Time 14 days 7 days RT cure
Tensile Strength 2750 psi 3500 psi ASTM D882
Elongation 120% 30% ASTM D882
Glass Transition Temperature (Tg, DSC midpoint) 27 °C 20 °C
CTE (Below Tg) 86 × 10⁻⁶ /°C 62 × 10⁻⁶ /°C TMA
CTE (Above Tg) 166 × 10⁻⁶ /°C 177 × 10⁻⁶ /°C TMA
Dielectric Constant (1 kHz, 23 °C) 6.2 6.5 ASTM D150
Volume Resistivity 7.5 × 10¹⁰ Ω·cm 5.0 × 10¹² Ω·cm ASTM D257
Thermal Conductivity 0.136 W/m·°C 0.381 W/m·°C ASTM C177
Thermal Shock Resistance Pass (5 cycles +100 °C to –50 °C) Pass

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