Product Name
LORD 403/19 Super Fast Set 2-4 minute, Thick Gel, Low Temperature Resistant, Non-Sag acrylic adhesives
Brief Description
LORD 403/19 is a two-component acrylic adhesive system engineered for high-strength bonding across a diverse range of materials, including metals, plastics, and composites. This adhesive system is designed to offer a robust alternative to traditional mechanical fastening methods like welding, brazing, and riveting. It provides fast fixture times, exceptional durability, and strong resistance to impact and peel forces.
Popular Applications & Uses
- Sign fabrication, including LED channel letters and channel letter assembly- Architectural metal bonding and architectural cladding- General structural bonding applications- Automotive manufacturing for exterior vehicle components, door panels, and framework- Manufacturing of sporting goods such as golf clubs and goal frames- Window mount bonding and sealing in construction- Magnet bonding in electrical motors and speakers- Panel bonding- Applications requiring high impact or high peel load resistance- Environments subject to low temperatures
Industries that Commonly Use It
- Sign & Display- Construction/ Building Services (for architectural cladding, window mount bonding)- Automotive Service/Repair- General Manufacturing- Metal Fabrication- Plastic Fabrication- LED/Electronics (for magnet bonding)- Transportation/ Specialty Vehicle (for automotive and rail car applications)- Aerospace/Defense (for demanding applications)- Energy (e.g., wind turbine blades)- Marine- Fabrication
Special and Unique Features
- Super fast setting with a 2 to 4 minute set time and 4 to 6 minutes to handling strength- Versatile bonding to a wide range of unprepared metals with minimal substrate preparation- Temperature resistant, performing effectively from -40°F to +300°F (-40°C to +149°C)- Environmentally resistant, capable of resisting dilute acids, alkalis, solvents, greases, oils, moisture, salt spray, and weathering, with excellent resistance to indirect UV exposure- Non-sag formulation, maintaining position when applied on vertical or overhead surfaces- UL 746C certified when mixed with LORD Accelerator 19- Can replace welding, brazing, riveting, and other mechanical fastening methods
Key Properties
- Two-component acrylic adhesive system (LORD 403 resin + LORD 19 accelerator)- Appearance: Off-white to Tan Paste- Viscosity: 100,000 – 280,000 cP at 77°F (25°C)- Density: 9.25-9.55 lb/gal (1108-1144 kg/m³)- Mix Ratio by Volume: 4:1- Solids Content: 100%- Working Time: 2-4 minutes at 75°F (24°C)- Time to Handling Strength: 4-6 minutes at 75°F (24°C)- High impact and peel strengths- Tensile Strength at Break: 4650 psi (32.1 MPa)- Elongation: 30%- Young's Modulus: 130,000 psi (896.3 MPa)- Glass Transition Temperature: 162°F (72°C)- Room temperature cure
Surface Compatibility
- Bare, coated, or painted metals- Engineered plastics, including XENOY®, polycarbonate, ABS, and acrylics- Composites- Bonds a wide range of unprepared metals with minimal substrate preparation- Most plastics require simple cleaning, some may require abrading for optimum performance
Known backups / known substitutes
- LORD 406/19 and LORD 410/19 (other LORD 400 series acrylics with Accelerator 19 or 19GB)- LORD SL403/21 and LORD Signlok 406- 3M Scotch-Weld DP804 Acrylic Adhesive- Permabond TA4200 Acrylic Adhesive- Weld-On® 45 Structural Methacrylate Adhesive- UltraLok® 420GB Structural MMA Adhesive- Maxlok MX/T3, Maxlok MX/T6, Maxlok MX/T18 (acrylic adhesives)- Signlok 810 (acrylic adhesive)- Epoxy structural adhesives (though acrylics are often preferred for production ease)- Polyurethane adhesive systems
Comparison Note
LORD 403/19 acrylic adhesive offers significant advantages over traditional mechanical fastening methods like welding, brazing, and riveting by providing uniform load distribution, eliminating the need for drilling or rework, allowing the use of lighter materials, reducing labor costs, providing a seal against moisture, bonding dissimilar materials, reducing galvanic corrosion, and enabling unique designs with hidden bond lines. It is often preferred over epoxy structural adhesives due to its ease of use in production environments, faster cure times at room temperature, higher tensile strength, and greater flexibility.
