Description
UltraLok® 420GB is a two-part, fast-set structural methacrylate adhesive designed to bond metals, plastics, and composites with speed, strength, and simplicity. Competing directly with ASI MP 55420, 3M™ DP8405NS, and SciGrip SG5000-03, UltraLok 420GB delivers robust performance at a more economical price point.
Formulated with integrated glass beads to maintain bondline thickness and prevent over-clamping, this adhesive cures quickly at room temperature and requires no surface prep. Ideal for high-throughput assembly environments where repeatable strength and application speed are critical.
See It in Action
Key Features and Benefits
-
Fast Working Time: 3–7 minute open time for efficient processing
-
Glass Bead Technology: Creates uniform bondlines and stronger joints
-
Ultra-Strength: Tensile strength of 2,500–3,500 psi on steel and aluminum
-
Durable & Impact Resistant: Resists vibration, weathering, and temperature fluctuations
-
No Surface Prep Required: Bonds through oils and light surface contamination
-
Tack-Free Surface: Allows clean sanding and over-painting
-
Color Options: Available in Grey, Black, and Natural
-
Flexible Packaging: 50ml, 250ml, 500ml cartridges, pails, and drums
-
Made in the USA: Supported by Chemical Concepts’ technical team
Common Applications
-
Metal cabinet and frame assembly
-
Plastic panel bonding
-
Composite repair and lamination
-
HVAC and enclosure systems
-
Sign manufacturing and display fabrication
-
Vehicle body panel and trailer fabrication
Technical Specifications
| Property | Value |
|---|---|
| Mix Ratio (by volume) | 10:1 |
| Open/Working Time | 3–7 minutes |
| Fixture Time | 9–15 minutes |
| Tensile Strength | 2,500–3,500 psi |
| Shear Strength | >2,500 psi |
| Temperature Resistance | -40°F to +250°F |
| Gap Fill | Up to 0.25 inches |
| Mixed Viscosity | 70,000–90,000 cps |
| Mixed Density | 8.1 lbs/gal (0.96 g/cc) |
| Available Colors | Grey, Black, Natural |
| Packaging Sizes | 50ml, 250ml, 500ml, pails, drums |
| Shelf Life | 12 months at room temp (77°F) |
| Cure Profile | Room temperature |
| Surface Prep | Not required |
| Flash Point | 51°F (11°C) |
Ultralok 400 Series Comparison Chart
| Product | Open Time | Fixture Time | Recommended Use | Colors | Available Sizes |
|---|---|---|---|---|---|
| Ultralok 420GB | 3–7 min | 9–15 min | Fast assembly, metal & plastic | Grey, Black, Natural | 50ml, 250ml, 500ml, pails, drums |
| Ultralok 421GB | 8–12 min | 20–30 min | Medium cure for positioning | Grey, Black, Natural | 50ml, 250ml, 500ml, pails, drums |
| Ultralok 422GB | 18–24 min | 30–45 min | Large parts, high-temp environments | Grey, Black, Natural | 50ml, 250ml, 500ml, pails, drums |
Compatible Substrates
Metals:
-
Aluminum
-
Steel
-
Stainless steel
-
E-coated metals
Thermosets:
-
Fiberglass
-
Gel coats
-
Phenolics
-
Epoxies
-
Polyurethanes
Thermoplastics:
-
ABS
-
PVC
-
Acrylic
-
Polycarbonate
-
Nylon
-
PPO
-
Styrenes
-
PET & PBT blends
Packaging and Ordering Info
-
Cartridge Sizes: 50ml, 250ml, 500ml
-
Bulk Sizes: 5-gallon pails and 55-gallon drums
-
Mix Tip Recommendation: MFHX 10-18T (18-element orange)
Also available in:
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.
Reviews
There are no reviews yet.