3M Scotch-Weld DP100 Clear 3-5 Minute Fast Set Epoxy Medium Viscosity

3M Scotch-Weld DP100 is a fast-setting, two-part epoxy adhesive that cures to a clear, rigid bond. Its low viscosity makes it easy to dispense and self-leveling, while its quick 3-5 minute work life is ideal for high-speed production and rapid repairs. Once cured, it provides high shear strength and is a popular choice for general-purpose bonding on a wide variety of materials where clarity and speed are essential.

Popular Applications & Uses
- General assembly and quick repairs on a wide range of substrates.
- Bonding glass, jewelry, and other clear materials where aesthetics are important.
- Potting and encapsulating electronic components in a clear, protective coating.
- Attaching trim, nameplates, and signage.
- Staking and reinforcing components on circuit boards.

Industries that Commonly Use It
- General Industrial and Manufacturing
- Electronics and Signage
- Sporting Goods Assembly
- Arts, Crafts, and Jewelry

Special and Unique Features
- Very fast cure speed with a 3-5 minute work life for rapid assembly.
- Cures to a highly transparent, clear finish, making it ideal for aesthetic applications.
- Low viscosity flows smoothly for easy dispensing, potting, and filling small gaps.
- Provides good shear strength and durability for general-purpose applications.
- Remains clear during curing and aging, resisting yellowing over time.

Key Properties
- Base: Epoxy
- Color: Clear / Colorless
- Mix Ratio: 1:1 by volume
- Work Life: 3-5 minutes at 73 F (23 C)
- Viscosity: Low-Medium (flows easily)
- Hardness: 80-85 Shore D (a hard, rigid plastic)

Materials Bonded
- Metals (Steel, Aluminum)
- Glass and Ceramics
- Many Plastics (ABS, Polycarbonate, PVC)
- Wood
- Note: Not recommended for polyolefin plastics (PE, PP) without surface treatment.

Cure Information
- Mix Ratio: 1:1 by volume
- Work Life (Pot Life): 3-5 minutes
- Time to Handling Strength: Approximately 15-20 minutes at room temperature.
- Full Cure: 24-48 hours at room temperature.
- Cure can be accelerated with mild heat.

Known backups / known substitutes for this product
- Devcon 5-Minute Epoxy
- Loctite E-05CL Hysol Epoxy
- Maven EA 505 Clear 5-Minute Epoxy

Comparison Note
- 3M DP100 is part of a classic category of "5-minute" clear epoxies. Products like Devcon 5-Minute Epoxy, Loctite E-05CL, and Maven EA 505 are all functionally very similar. They all offer a fast work life, a clear or translucent cure, a 1:1 mix ratio, and general-purpose bonding capabilities for a wide range of substrates. They are often considered interchangeable for many quick-fix and assembly applications, with the choice frequently coming down to brand availability and specific handling characteristics.