UltraLok® 422GB Structural MMA Adhesive

Description

UltraLok® 422GB is a two-part, structural methacrylate adhesive formulated for slow-set, high-strength bonding of metals, plastics, and composites. With an 18–24 minute open time, it is ideal for large surface assemblies or temperature-sensitive environments where extended working time is required.

The 422GB is engineered with built-in glass beads for bondline control and minimal surface prep, and is a reliable alternative to ASI MP 55422, 3M™ Scotch-Weld DP8425NS, and SciGrip SG300-15. It delivers long-term strength and durability across diverse applications, including mixed-material assembly and high-performance industrial use.

See It in Action

---

Key Features and Benefits

• Slow-Set Working Time: 18–24 minute open time for large or complex assemblies

• Glass Bead Technology: Ensures uniform bondline and prevents overclamping

• High Strength Bonds: 2,500–3,500 psi tensile strength on metalsUL422GB_TDS

• Excellent Durability: Weather, impact, and vibration resistant

• Minimal Surface Prep Required: Bonds through oils and light surface residues

• Tack-Free Surface: Allows clean sanding, painting, and secondary processing

• Color Options: Available in Grey, Black, and Natural

• Multiple Package Sizes: 50ml, 250ml, 500ml, pails, and drums

• Made in the USA

---

Common Applications

• Large panel bonding in trailers, buses, and enclosures

• Industrial equipment and HVAC fabrication

• Structural bonding of metal to composites

• Signage, exterior panels, and display structures

• Assemblies requiring long open time or precise alignment

---

Technical Specifications

---

Ultralok 400 Series Comparison Chart

---

Compatible Substrates

Metals:

• Steel

• Aluminum

• Stainless steel

• E-coated or coated metals

Thermosets:

• Fiberglass

• Gel coats

• Epoxies

• Phenolics

• Polyurethanes

Thermoplastics:

• ABS

• PVC

• Acrylic

• Polycarbonate

• Nylon

• PPO

• Styrenes

• PBT & PET blends

---

Packaging and Ordering Info

• Cartridge Sizes: 50ml, 250ml, 500ml

• Bulk Sizes: 5-gallon pails and 55-gallon drums

• Recommended Mix Tip: MFQX 08-24T (24-element orange/green)

Looking for a faster cure option?

• UltraLok 420GB – Fast-Set (3–7 min)

• UltraLok 421GB – Medium-Set (8–12 min)

---

Contact Us for Bulk Pricing or Technical Support

Call 800-220-1966 or email [email protected] to speak with our team of adhesive experts. We’re here to help you find the best bonding solution for your application.