LORD 320/310-B Black Rubber Bonder Epoxy Adhesive Slow Set 30-60 min

Product Name

LORD 320/310-B Black Rubber Bonder Epoxy Adhesive Slow Set 30-60 min

Brief Description

A two-component, room-temperature curing epoxy adhesive system specifically formulated for bonding cured rubber, and also highly effective on various metals and plastics. It offers a slow set time for assembly flexibility and provides durable, high-strength bonds with excellent environmental and chemical resistance.

Popular Applications & Uses

- Bonding cured rubber components, especially when treated with LORD 7701 adhesion enhancer.- Bonding rubber seals, gaskets, and weatherstrippings in the automotive industry.- Flooring applications, such as bonding rubber flooring to concrete substrates.- Bonding rubber-to-metal parts like vibration dampers, thermal insulation, and gaskets in aerospace.- Specialized conveyor belts.- Bonding rubber linings in tanks and pipes.- Attaching rubber bumpers and pads for vibration damping in industrial machinery.- Structural bonding in window and door manufacturing, including corner key joints, perimeter bond frames, internal reinforcements, astragals, and "dowel" joints.- Cladding applications.

Industries that Commonly Use It

- Aerospace/Defense- Automotive Service/Repair- Construction/ Building Services- General Manufacturing- Metal Fabrication- Plastic Fabrication- Distributers & Resellers- Transportation/ Specialty Vehicle

Special and Unique Features

- Optimized for bonding cured rubber, especially with LORD 7701 surface treatment.- Slow set time (30-60 minutes working time) allows for precise alignment and assembly.- Toughened formula provides high peel strength and impact resistance down to -40°F (-40°C).- Environmentally friendly: contains no solvent, nonflammable, and virtually odorless.- Excellent environmental resistance to humidity, salt spray, and temperature extremes.- High temperature resistant, capable of resisting postbakes up to 400°F (204°C).- Chemically resistant to solvents once cured; unaffected by anti-corrosion processes like phosphatizing and e-coatings.

Key Properties

- Product Type: Two-component epoxy adhesive system- Color (Mixed): Black paste (resin is off-white, hardener is black)- Mix Ratio (by Volume): 1:1- Working Time: 0.5 to 1 hour (30-60 minutes)- Handling Time: 6 to 8 hours- Full Cure Time: 24 hours at room temperature (can be accelerated with heat)- Viscosity (Mixed): High viscosity paste (Resin: 300,000-1,000,000 cP; Hardener: 200,000-700,000 cP @ 77°F (25°C))- Density: Resin: 12.5-12.9 lb/gal (1498-1546 kg/m3); Hardener: 10.3-11.0 lb/gal (1234-1318 kg/m3)- Flash Point: >200°F (>93°C)- Solids Content: 100%

Surface Compatibility

- Cured rubber (optimized, especially with LORD 7701 adhesion enhancer)- Metals- Plastics (thermosets and thermoplastics)- Composites- Glass (with LORD AP-134 primer for superior environmental resistance)- Ceramics (with LORD AP-134 primer)- Concrete (for flooring applications)- Wood (for flooring applications, and general epoxy compatibility)- Foam

Known backups / known substitutes

- Other LORD epoxy adhesives (e.g., LORD 320/322, LORD 360-A/360-B)- Other two-component epoxy systems for rubber bonding (e.g., Copps' K-550 Epoxy, Master Bond EP31, KB 1031 series)- Structural acrylic adhesives- Urethane-based adhesives- Cyanoacrylate adhesives (for fast curing, may require surface priming for some rubbers)- Silicone adhesives (for flexible bonds, electrical insulation, and resistance to moisture, chemicals, and temperature)

Comparison Note

LORD 320/310-B Black stands out as a specialized, high-performance epoxy adhesive system, particularly optimized for challenging rubber bonding applications. It offers a balance of extended working time, high strength, and robust environmental and chemical resistance, often outperforming general-purpose adhesives in demanding industrial settings.