Description
3M Scotch-Weld DP405 is a two-part, rapid-setting toughened epoxy adhesive that provides strong, durable bonds with excellent impact and vibration resistance. Its 5-minute work life makes it ideal for fast-paced production environments, while its toughened nature allows it to absorb impacts and stresses that would cause more brittle epoxies to fail. It is a versatile choice for bonding a wide variety of materials, including metals and many plastics
Popular Applications & Uses
– Bonding components in sporting goods that experience high impact, such as golf clubs and skis.
– Assembly of small joints, brackets, and mounts in industrial applications.
– Fast-paced product assembly where quick handling strength is required.
– Bonding carbon fiber composites, metals, and plastics with high peel strength requirements.
Industries that Commonly Use It
– Sporting Goods
– General Industrial Manufacturing
– Electronics
– Transportation
Special and Unique Features
– Very fast 5-minute work life for rapid assembly and repairs.
– Toughened formulation provides excellent impact, shock, and vibration resistance.
– High peel strength makes it suitable for bonding dissimilar materials.
– Good shear strength on a wide variety of substrates including metals and some plastics.
Key Properties
– Base: Epoxy
– Color: Black
– Mix Ratio: 1:1 by volume
– Work Life: 4-6 minutes
– Time to Handling Strength: 20-30 minutes
– High Peel Strength and Impact Resistance
Materials Bonded
– Metals (Aluminum, Steel)
– Composites (Carbon Fiber, FRP)
– Many Plastics (ABS, PC, PVC)
– Ceramics and Wood
Cure Information
– Mix Ratio: 1:1 by volume
– Work Life (Pot Life): 4-6 minutes at 73 F (23 C).
– Time to Handling Strength: Approximately 20-30 minutes.
– Full Cure: 24 hours at room temperature.
Known backups / known substitutes for this product
– Loctite EA E-20HP
– Devcon 5-Minute Epoxy
Comparison Note
– The key feature of 3M DP405 is its combination of speed and toughness. Compared to a standard 5-minute epoxy like Devcon’s, DP405 offers significantly better impact and peel strength. Compared to a higher-performance epoxy like 3M DP420, DP405 provides a much faster cure at the expense of some ultimate strength and a shorter positioning time.






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