3M Scotch-Weld DP190 Translucent 80-90-Minute Epoxy Adhesive

Product Name

3M Scotch-Weld DP190 Translucent 80-90-Minute Epoxy Adhesive

Brief Description

The 3M Scotch-Weld DP190 Translucent is a two-part, semi-flexible epoxy adhesive designed for structural bonding applications. It offers an extended work life, typically 80-90 minutes, allowing for precise positioning and adjustment of components before curing. This translucent formulation provides strong, durable bonds with high shear and peel strength across a wide range of materials, while also exhibiting good resistance to environmental aging, vibration, and flexing.

Popular Applications & Uses

• Bonding plastics to metals
• Bonding wood to metals
• Bonding wood to plastics
• Serving as a semi-flexible potting compound
• Panel and trim bonding
• General gluing, joining, attaching, and assembling of various components
• As an alternative to mechanical fastening methods like riveting or welding
• Appliance repair
• Assembly of sporting goods, including bicycles, boats, golf clubs, skis, and snowboards

Industries that Commonly Use It

• Aerospace/Defense
• Automotive Service/Repair
• Cabinet & Woodworking
• Construction/ Building Services
• Electronics / LED/Electronics
• Energy (Solar, Wind)
• Fabrication
• General Manufacturing
• Government & Military
• Marine
• Metal Fabrication
• Plastic Fabrication
• Prosumer (for home use and other applications)
• Sign & Display
• Transportation/ Specialty Vehicle

Special and Unique Features

• Extended Work Life: Offers an 80-minute work life for the translucent version, providing ample time for precise repositioning and adjustments of parts before the adhesive sets.
• Translucent Formulation: Its clear appearance makes it ideal for applications where an aesthetically pleasing, nearly invisible bond line is desired.
• Semi-Flexible Bond: Engineered to be flexible, allowing it to absorb shock, vibration, and flexing, which is particularly beneficial when bonding dissimilar materials.
• High Shear and Peel Strength: Delivers tough, strong, and durable bonds capable of withstanding demanding conditions and stresses.
• Good Environmental Aging Properties: Formulated for long-term durability and resistance to various environmental factors, ensuring reliable performance over time.
• Convenient 1:1 Mix Ratio: Ensures easy and accurate mixing, especially when used with 3M EPX Applicator systems, leading to consistent results.

Key Properties

• Adhesive Type: Two-part Epoxy Adhesive
• Color: Translucent (may vary from nearly white to yellow/amber)
• Mix Ratio (by Volume): 1:1
• Work Life / Open Time: 80 minutes (Translucent)
• Time to Handling Strength: Approximately 6-10 hours
• Full Cure Time: 14 days at room temperature (23°C / 73°F) for the translucent version
• Viscosity: Low viscosity (Translucent)
• Shore D Hardness (ASTM D2240): 35 (Translucent)
• Shear Strength: 1,200 psi (Translucent)
• Modulus: Moderately low (Translucent)
• Storage Temperature: 16°C - 27°C (60°F - 80°F)

Surface Compatibility

This adhesive is formulated to bond effectively to a wide range of similar and dissimilar materials, including:

• Metals (e.g., steel, aluminum)
• Ceramics
• Wood and Fiberboard
• Glass
• Rubber
• Many Plastics

Known backups / known substitutes

• 3M™ Scotch-Weld™ Epoxy Adhesive 2216: The DP190 Translucent shares a similar base and accelerator with 3M Scotch-Weld 2216 B/A Translucent but offers faster curing. The DP190 Gray version is a 1:1 mix ratio equivalent of 2216 B/A Gray.
• UltraLok 54190: Offered by Chemical Concepts Inc. as a direct alternative, this epoxy is designed for bonding metals, ceramics, and many plastics, featuring good vibration and impact resistance, a 1:1 mix ratio, and room temperature curing.
• Other Structural Adhesives: While epoxies generally provide the highest overall strength and resistance to high temperatures, solvents, and outdoor weathering, other structural adhesive classes like polyurethanes, acrylics, and cyanoacrylates can serve as alternatives depending on specific application requirements.

Comparison Note

The 3M Scotch-Weld DP190 Translucent stands out with its extended 80-minute work life, providing a significant advantage for applications requiring careful alignment and adjustment of components, unlike many faster-setting epoxies. Its translucent finish is a key differentiator, making it suitable for aesthetic applications where an invisible bond line is crucial. This contrasts with the DP190 Gray version, which offers a higher modulus and a faster full cure time (7 days versus 14 days for translucent). Although it shares a similar chemical base with 3M Scotch-Weld 2216, the DP190 is conveniently packaged in a 1:1 Duo-Pak, simplifying mixing and dispensing. The combination of high shear and peel strength, flexibility, and environmental resistance positions it as a versatile and reliable choice for demanding industrial and assembly tasks where both robust bonding and visual appeal are important considerations.