Overview of Plexus MA2045 Adhesive Plexus MA2045 is a robust two-part methacrylate adhesive, engineered for structural bonding of composites, thermoplastics, and metal assemblies. This adhesive has been specially developed to tackle the common issues of sag and slide, making it an ideal choice for applications on vertical surfaces. Additionally, it remains stable in gaps up to 1.5 inches thick, without boiling, ensuring consistent performance. Mixed at a 10:1 ratio and optimized for use at 75°F (24°C), Plexus MA2045 provides a lengthy working time of about 50 minutes, with initial and full strength developments occurring within 100 and 130 minutes, respectively.Plexus MA2045 streamlines bonding tasks with its minimal surface preparation requirements, embodying a hassle-free application process. It is known for its exceptional fatigue endurance, outstanding impact resistance, and superior toughness, qualities that make it highly reliable for demanding industrial applications. This adhesive is available in 380-ml cartridges, as well as in larger 5-gallon pails and 50-gallon drums, all dispensed as a non-sagging gel to facilitate precise and clean application. Key Features of MA 2045 Extended Application Time: Allows a working time of 40-50 minutes for detailed assembly tasks. Consistent Strength Development: Cures quickly at room temperature, ensuring a rapid transition to the next stages of assembly. Non-Sag Formula: Highly thixotropic properties enable the dispensing of large, stable beads that maintain their position. Durable Bonding Capabilities: Features high strength and extensive elongation for robust, long-lasting joints. Compatible Materials Composites: Suitable for DCPD, FRP, Gelcoat, Phenolics, Epoxy Based Composites, RIM. Thermoplastics: Bonds effectively with ABS/ABS Blends, Acrylics, PBT, Polycarbonate, Rigid PVC, TPUs. Coated Metals: Ideal for Powder coated or E-coated Metals. Raw Metals: Adheres well to PC120 treated Aluminum, Stainless Steel, Raw Steel, etc. Technical Specifications Property Specification Mix Ratio 10:1 Shear Strength 1,600-2,200 psi (11.0 – 15.2 MPa) Adhesive Viscosity (Part A) 180,000-220,000 cP Activator Viscosity (Part B) 35,000-70,000 cP Minimum Working Time 40 minutes Maximum Working Time 50 minutes Minimum Fixture Time 100 minutes Maximum Fixture Time 130 minutes Minimum Tensile Strength 2,200 psi (15.2 MPa) Maximum Tensile Strength 2,900 psi (20.0 MPa) Minimum Tensile Elongation 90 % Maximum Tensile Elongation 125 %
