3M™ Scotch-Weld™ Structural Adhesives

The standard for strength, durability and outdoor weathering

• Durable in demanding conditions, including outdoor weathering, many solvents and other conditions
• Continuous bond lines to prevent the migration of fluids, dust and dirt
• Bond a wide variety of substrates - attain the freedom to design with the best materials available
• Exceptional resistance to shock, vibration, and impact loads
• Adhering to new materials and distributing stress along the entire bond area helps designers use thinner and lighter materials
• Vibration resistance reduces opportunities for unwanted noise
• Enhanced aesthetics through invisible joints and smooth bond lines

One-Part Epoxies – One-part epoxy adhesives eliminate metering and mixing but require heat to cure, with newer formulations curing at lower temperatures than older versions.

Two-Part Epoxies – Two-part epoxy adhesives begin curing when the two components are mixed and offer different performance characteristics depending on the formulation.

Structural strength with hot melt speed

• Combines the initial speed of a hot melt adhesive with the strength of a structural adhesive
• Resistant to temperature extremes
• Flexible enough to provide vibration and impact resistance
• Range of open times that can be adjusted to suit your process
• Low to no Volatile Organic Compounds (VOCs)
• Bonds well to metals, glass, ceramics, wood and some plastics such as polystyrene and polyacrylic
• Excellent candidates to help improve throughput and reduce processing time

Strong bonds that bend but don’t break

• Two-part formulations that react when mixed and do not require moisture to cure
• Relatively flexible when cured for excellent impact and vibration resistance
• Bond well to most plastics, wood, concrete and rubber
• Combines flexibility and the ability to form strong bonds to a variety of substrates
• Bonds dissimilar materials

Protection against fluid migration

• One-part adhesives that cure on active metal surfaces in the absence of oxygen in the bond line
• Reduce maintenance and leakage to help keep factories running efficiently
• Bonds dissimilar materials and provides insulation to resist corrosion when bonding two different metals
• Strong bonds that resist both direct force and extended periods of vibration
• NVH - stiff bonds resist vibration and reduce opportunities for loose parts to make unwanted noise
• Pipe sealants inhibit leaks by preventing fluids from migrating along threaded fittings

Apply, hold, done – it’s as easy as that

• Instant adhesives are cyanoacrylates and cure very rapidly
• One-part products that cure by reacting with moisture
• Require very little clamping time
• Reaches handling strength in a matter of seconds
• Designed for processes with high strength requirements for a small bond area, tight-fitting joints, and a need for rapid curing
• Different formulations are able to bond to many different materials including metals, leather, paper, elastomers, engineered plastics and some Low Surface Energy (LSE) plastics