Description
Weld-On® 45 is a two-component, low-VOC structural adhesive formulated for bonding dissimilar materials including metals, plastics, wood, and masonry. This reactive methacrylate adhesive offers fast fixture time, excellent impact strength, and weatherability. It forms high-strength bonds at room temperature in as little as 15 minutes and performs reliably across a wide temperature range.
High-Strength Bonding for Dissimilar Substrates
Weld-On 45 is a versatile adhesive used in signage, general manufacturing, construction, and assembly applications. Whether bonding aluminum to ABS, steel to acrylic, or PETG to PVC, this product delivers consistent performance even under harsh environmental conditions.
Key Features & Benefits
-
Fast fixture time: 15 minutes at room temperature
-
Bonds metals, plastics, composites, wood, and more
-
High impact strength and excellent environmental resistance
-
Withstands temperatures from -20°F to 200°F
-
Maintains elongation at elevated temperatures
-
Low VOC formulation; meets air quality standards
-
UL 746C approved (aluminum, fiberglass)
-
Excellent corrosion resistance and gap-filling capability
-
Cures to a tough, tan finish
-
Packaged in 4:1 ratio cartridges for convenient dispensing
Common Applications
-
Sign and display fabrication
-
Plastic-to-metal bonding in enclosures or structures
-
Structural bonding in HVAC and electrical assemblies
-
General-purpose assembly requiring dissimilar material adhesion
-
Outdoor projects exposed to weather and temperature changes
Technical Specifications
| Property | Value |
|---|---|
| Chemistry | Methacrylate (2-part, reactive) |
| Color (Mixed) | Tan |
| Mix Ratio (by volume) | 4:1 |
| Working Time | 5–6 minutes |
| Fixture Time | 15 minutes |
| Full Cure | 24 hours |
| Viscosity (Mixed) | 500,000 ± 100,000 cps |
| Specific Gravity (A/B) | 1.064 / 1.295 |
| Tack-Free Time | 1 hour (0.02” film) |
| Temperature Range | -20°F to 200°F (-29°C to 93°C) |
| VOC Content | <250 g/L |
| Shelf Life | 12 months (50–80°F storage) |
Substrate Bond Strength (ASTM D-2564 – Compressive Shear)
| Substrate Pair | 2 hrs (psi) | 24 hrs (psi) | 72 hrs (psi) |
|---|---|---|---|
| Aluminum | 2,000 | 2,200 | 2,300 |
| Cold Roll Steel | 1,900 | 2,250 | 2,300 |
| Brass | 1,700 | 2,000 | 2,000 |
| Copper | 1,200 | 1,500 | 1,500 |
| Galvanized Steel | 1,700 | 2,100 | 2,100 |
| ABS | 1,400 | 1,500 | 1,600 |
| Polycarbonate | 1,600 | 1,700 | 1,800 |
| PVC | 1,600 | 1,700 | 1,700 |
| Acrylic | 1,700 | 1,900 | 2,000 |
| PETG | 1,600 | 1,650 | 1,700 |
Compliance & Certifications
-
UL 746C certified for aluminum and fiberglass
-
VOC content below 250 g/L
-
Complies with EPA air quality requirements
-
Manufactured under IPS quality assurance program
Compatible Substrates
-
Aluminum, brass, copper, galvanized and cold-rolled steel
-
Acrylic, ABS, PETG, PVC, polycarbonate
-
Wood, MDF, and other cellulosics
-
Concrete, brick, and other masonry
Packaging & Ordering Info
-
43ml cartridge – 12 units/case (Stock #12468)
-
400ml cartridge – 4 units/case (Stock #12611)
-
Use with 4:1 applicator guns and static mixers
-
Store in a cool, dry place (50–80°F) for maximum shelf life
Need a tough structural adhesive for mixed substrates? Contact our team to discuss Weld-On 45 or other bonding options. We offer samples, technical guidance, and bulk pricing.
Phone: 800-220-1966 | Email: [email protected]
Reviews
There are no reviews yet.