Araldite 2018 – Flexible polyurethane adhesive

General Description

Araldite 2018 is a two-component, pale-colored, lightly thixotropic polyurethane adhesive specifically designed for advanced bonding of thermoplastics. Its innovative formulation ensures a balance between flexibility and strength, providing exceptional performance in various applications. Featuring excellent UV stability and low shrinkage, Araldite 2018 is suitable for industries requiring high-performance adhesives.

Product Properties

• UV Stability: Resilient to UV light, ensuring robust and stable bonds even under frequent UV exposure.
• Low Shrinkage: Minimizes distortion or warping in bonded materials, preserving joint integrity.
• Flexibility: Accommodates minor movements and vibrations, maintaining bond strength.
• Room Temperature Curing: Cures effectively at room temperature, enhancing convenience and cost-efficiency.
• Thixotropic Consistency: Ensures smooth and even application on joint surfaces.

Technical Specifications

• Color: Pale Opaque
• Specific Gravity: Approximately 1.16
• Viscosity at 25°C: 12-18 cP (Component A), 3-6 cP (Component B), and approximately 8 cP when mixed
• Pot Life: Approximately 40 minutes at 25°C
• Flash Point: Above 100°C
• Shelf Life: Up to 2 years at 2-40°C
• Cure Time: 16 hours at 40°C
• Tensile Strength: 7 MPa
• Elongation at Break: 45%
• Lap Shear Strength: Typically above 8 MPa

Product Applications

• Thermoplastic Bonding: Provides strong, durable joints, ideally suited for bonding various thermoplastics.
• Composite Materials: Reliable long-lasting bond for composites such as GRP/CFRP.
• Ferrous Metals: Ideal for bonding ferrous metals including aluminum, copper, zinc, and galvanized products.
• Automotive and Aerospace Industries: Flexible and UV stable, making it perfect for joints exposed to high stress and environmental conditions.

Handling and Safety Precautions

• Pretreatment: Clean surfaces with a degreasing agent, then mechanically abrade or chemically etch to ensure strong bonding.
• Application: Apply manually or robotically to pretreated, dry joint surfaces for optimal adhesion.
• Safety: Generally harmless to handle, but precautions such as wearing gloves and eye protection should be taken to avoid skin and eye contact.