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Ultralok Structural Adhesives

A Better Approach for Manufacturing & Assembly

Ultralok® Structural Adhesives

Industrial-Strength MMA, Epoxy & Polyurethane

If you’re trying to replace welding, rivets, or messy mechanical fastening, Ultralok® is built for that kind of work. Formulated for high-volume manufacturing, the Ultralok line covers aluminum, steel, galvanized metals, acrylics, polycarbonate, composites, carbon fiber, TPU, foam boards, wood, and concrete, with working times ranging from 40 seconds to 90 minutes.

Often considered by engineering and purchasing teams evaluating alternatives to ASI MP55420, 3M™ Scotch-Weld™ DP8405NS, Loctite® H3300, and 3M™ DP610.


Watch Ultralok Demo

▶ WATCH DEMO

 

Cross-Substrate Bonding

High Shear & Impact

Adjustable Cure Times

Replaces Welding/Rivets

Common Markets & Applications

Metal Fabrication

Bonding bare metals, galvanized steel, and aluminum without pre-sanding or harsh primers.

Signage & Displays

Channel letter assembly, architectural sign mounting, and invisible acrylic/polycarbonate joints.

Specialty Vehicles

High-vibration panel bonding for trailers, truck bodies, RVs, and emergency vehicles.

Composite & Marine

Unitizing fiberglass (FRP), carbon fiber, and gel-coated surfaces for marine and aerospace builds.

Substrate & Chemistry Selection Guide

Substrate Category Specific Materials Recommended Chemistry
Standard Metals Aluminum, Steel, Stainless Steel MMA or Structural Epoxy
Coated Metals Galvanized Steel, ACM (Alum. Composite) MMA (Specific Grades)
Engineered Plastics Acrylic, Polycarbonate, PVC, ABS, Thermoplastics MMA
Composites Carbon Fiber, Fiberglass (FRP), Gel Coats MMA or Structural Epoxy
Flexible / Porous Foam Boards, Wood, Rubber, TPU Polyurethane
Rigid / Brittle Ceramic, Stone, Glass Epoxy or Polyurethane

The Ultralok® Structural Adhesive Series

10:1 MMA (4XX Series)

Rapid fixture times for high-speed assembly. Designed for bonding metals, plastics, and composites where speed matters.

1:1 MMA (3XX & 5XX)

Extended open times for staging, aligning, and clamping. Delivers strong, durable bonding on a wider mix of materials.

Structural Epoxies

Maximum chemical resistance and rigidity. Ideal for assemblies that need a tougher bond line and stable performance over time.

Polyurethanes

Flexible strength for high impact and vibration. A great option for plastics, foams, and applications that need a little “give”.

Stick with the SmartPAK™

SmartPAK System

Many of our Ultralok adhesives are available in our eco-friendly SmartPAK packaging. It uses less than 1% plastic, radically reduces environmental waste, and provides 38% more product at a highly cost-effective rate.

Available in 600ML and 1200ML high-efficiency formats.

Shop SmartPAK Starter Kit

Need Help Picking the Right Adhesive?

If you’re not sure which series fits your application, we’ll help you choose based on substrates, joint design, open time requirements, and production flow constraints.

A Better Approach for Manufacturing & Assembly

Ultralok® Structural Adhesives

Industrial-Strength MMA, Epoxy & Polyurethane

If you’re trying to replace welding, rivets, or messy mechanical fastening, Ultralok® is built for that kind of work. Formulated for high-volume manufacturing, the Ultralok line covers aluminum, steel, galvanized metals, acrylics, polycarbonate, composites, carbon fiber, TPU, foam boards, wood, and concrete, with working times ranging from 40 seconds to 90 minutes.

Often considered by engineering and purchasing teams evaluating alternatives to ASI MP55420, 3M™ Scotch-Weld™ DP8405NS, Loctite® H3300, and 3M™ DP610.


Watch Ultralok Demo

▶ WATCH DEMO

 

Cross-Substrate Bonding

High Shear & Impact

Adjustable Cure Times

Replaces Welding/Rivets

Common Markets & Applications

Metal Fabrication

Bonding bare metals, galvanized steel, and aluminum without pre-sanding or harsh primers.

Signage & Displays

Channel letter assembly, architectural sign mounting, and invisible acrylic/polycarbonate joints.

Specialty Vehicles

High-vibration panel bonding for trailers, truck bodies, RVs, and emergency vehicles.

Composite & Marine

Unitizing fiberglass (FRP), carbon fiber, and gel-coated surfaces for marine and aerospace builds.

Substrate & Chemistry Selection Guide

Substrate Category Specific Materials Recommended Chemistry
Standard Metals Aluminum, Steel, Stainless Steel MMA or Structural Epoxy
Coated Metals Galvanized Steel, ACM (Alum. Composite) MMA (Specific Grades)
Engineered Plastics Acrylic, Polycarbonate, PVC, ABS, Thermoplastics MMA
Composites Carbon Fiber, Fiberglass (FRP), Gel Coats MMA or Structural Epoxy
Flexible / Porous Foam Boards, Wood, Rubber, TPU Polyurethane
Rigid / Brittle Ceramic, Stone, Glass Epoxy or Polyurethane

The Ultralok® Structural Adhesive Series

10:1 MMA (4XX Series)

Rapid fixture times for high-speed assembly. Designed for bonding metals, plastics, and composites where speed matters.

1:1 MMA (3XX & 5XX)

Extended open times for staging, aligning, and clamping. Delivers strong, durable bonding on a wider mix of materials.

Structural Epoxies

Maximum chemical resistance and rigidity. Ideal for assemblies that need a tougher bond line and stable performance over time.

Polyurethanes

Flexible strength for high impact and vibration. A great option for plastics, foams, and applications that need a little “give”.

Stick with the SmartPAK™

SmartPAK System

Many of our Ultralok adhesives are available in our eco-friendly SmartPAK packaging. It uses less than 1% plastic, radically reduces environmental waste, and provides 38% more product at a highly cost-effective rate.

Available in 600ML and 1200ML high-efficiency formats.

Shop SmartPAK Starter Kit

Need Help Picking the Right Adhesive?

If you’re not sure which series fits your application, we’ll help you choose based on substrates, joint design, open time requirements, and production flow constraints.

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