3M™ Scotch-Weld™ Acrylic Adhesive DP8425NS
The 3M™ Scotch-Weld™ Acrylic Adhesive DP8425NS is a two-part, non-sag, toughened acrylic adhesive designed for high-strength bonding across various substrates, including metals and plastics—even those with slightly oily surfaces. Its extended work life and rapid strength development make it ideal for structural applications requiring precise assembly and fast throughput.
Product Overview
DP8425NS features a 10:1 mix ratio and a green color for easy visual identification. It offers a 23-minute work life, allowing ample time for positioning components before the adhesive sets. The adhesive achieves handling strength (1,000 psi) in approximately 53 minutes and reaches full cure within 24 hours at room temperature. Its non-sag formulation ensures the adhesive remains in place during application, making it suitable for vertical surfaces and overhead assemblies.
Key Features
Toughened Acrylic Formula: Provides excellent shear, peel, and impact strength, ensuring durable bonds.
Extended Work Life: 23-minute open time facilitates precise assembly of larger or complex parts.
Rapid Strength Build: Achieves structural strength in under an hour, enhancing productivity.
Non-Sag Properties: Ideal for vertical applications, preventing adhesive migration during curing.
Minimal Surface Preparation: Bonds effectively to slightly oily surfaces, reducing prep time.
Heat Accelerated Cure: Cure time can be reduced with the application of heat.
UL Recognition: Approved for use in electrical equipment and electric signs (UL File QOQW2. MH17478).
Applications
Metalworking: HVAC systems, appliances, sporting goods, and specialty vehicles.
Sign Manufacturing: Panel-to-frame bonding, trim attachment, letter bonding, and frame assembly.
Composite Bonding: Joining plastics, composites, and powder-coated metals.
Large Part Assembly: Suitable for applications requiring longer open times for precise positioning.
Packaging Options
Cartridge Sizes: Available in 45 mL and 490 mL Duo-Pak cartridges.
Bulk Packaging: Offered in 5-gallon pails and 55-gallon drums for high-volume applications.
Handling & Safety
Mix Ratio: 10:1 by volume.
Work Life: Approximately 23 minutes.
Time to Handling Strength: Approximately 53 minutes.
Full Cure: 24 hours at room temperature; can be accelerated with heat.
Shelf Life: 18 months when stored at room temperature.
Surface Preparation: Clean surfaces with isopropyl alcohol; light abrasion may enhance bond strength.
Personal Protective Equipment (PPE):
- Wear safety goggles and gloves during handling.
- Ensure adequate ventilation in the working area.
Hazards:
- May cause skin and eye irritation.
- Highly flammable liquid and vapor.
- May cause allergic skin reaction and respiratory irritation.
First Aid Measures:
- Inhalation: Move to fresh air; seek medical attention if symptoms persist.
- Skin Contact: Wash with soap and water; remove contaminated clothing.
- Eye Contact: Rinse cautiously with water for several minutes; seek medical attention.
- Ingestion: Do not induce vomiting; seek medical attention immediately.
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