Weld-On
Trusted Bonding Solutions for Acrylics, ABS, Vinyls, and Structural Sign Assemblies
Weld-On is a leading name in high-performance adhesives for plastic bonding. Now available through Chemical Concepts, this robust collection of solvent cements and structural adhesives is ideal for sign fabricators seeking clarity, strength, and durability. Whether you’re bonding acrylic trim caps, rigid vinyls, or mounting hardware, Weld-On offers a dependable solution engineered for your production needs.
From fast-setting acrylic adhesives to UV-resistant structural solutions, discover Weld-On products that simplify fabrication and deliver professional-grade results.
Why Weld-On for Sign Fabrication?
-
Crystal-clear finishes for retail signage and displays
-
Fast setting to keep your workflow moving
-
Reliable weatherability for indoor and outdoor use
-
Bonds to a wide range of plastics including acrylic, polycarbonate, ABS, and PVC
-
Meets low-VOC requirements in select SKUs
Featured Adhesives by Material
Below is a streamlined comparison chart to help you select the right Weld-On adhesive for your application:
Weld-On Adhesive Selector
| Product | Type | Best For | Key Features |
|---|---|---|---|
| Weld-On 3 | Solvent Cement | Acrylic | Ultra-thin, fast set, non-flammable |
| Weld-On 4 | Solvent Cement | Acrylic | Moderate set, non-flammable |
| Weld-On 4SC | Solvent Cement | Acrylic | Fast set, improved flow |
| Weld-On 16 | Solvent Cement | Acrylic & Porous Plastics | Medium bodied, strong bond |
| Weld-On 40 | 2-Part Acrylic | Acrylic | Clear joints, 20:1 ratio, excellent weather resistance |
| Weld-On 42 | 2-Part Acrylic | Acrylic | Clear joints, 10:1 ratio, museum-grade clarity |
| Weld-On 1802 | Solvent Cement | Acrylic, ABS, PVC, Butyrate | Versatile, moderate set |
| Weld-On 2354 | Solvent Cement | ABS | Thin, fast set for ABS-only bonding |
| Weld-On 4707 | Solvent Cement | ABS | Milky finish, low-VOC, ABS-only |
| Weld-On 1910 | Solvent Cement | Foamed/Rigid PVC | Thick, slow set |
| Weld-On 2007 | Solvent Cement | PVC | Thin, very fast set |
| Weld-On 4052 | Solvent Cement | PVC, CPVC, ABS, Nylon | Multi-plastic compatibility |
| Weld-On 4784 | Solvent Cement | Flexible Vinyl | Flexible, weather-resistant |
| Weld-On 55 | Urethane (2-Part) | Polycarbonate, ABS, PETG | UV-resistant, retains impact resistance |
| Weld-On 58 | Urethane (2-Part) | Polycarbonate, ABS, PETG | UV-resistant, clear bonds |
| Weld-On 30 | Methacrylate (2-Part) | Mixed Substrates | Fast speed, metals & composites |
| Weld-On 31 | Methacrylate (2-Part) | Mixed Substrates | Medium speed, versatile bonding |
| Weld-On 45 | Methacrylate (2-Part) | Unprepped Metals & Plastics | High strength, corrosion-resistant bonding |
| Weld-On 46C | Acrylic (2-Part) | Aluminum & Acrylic | Clear, thixotropic, primer-less bonding |
Use Cases for Sign Fabricators
-
Edge bonding acrylic letters
-
Mounting sign faces to frames
-
Seamless display assembly
-
Panel fabrication
-
Laminating trim cap and lighting components
Whether you’re building backlit displays, dimensional signage, or acrylic enclosures, Weld-On adhesives deliver speed and performance you can count on.
Need Help Choosing the Right Product?
Our expert sales team is ready to recommend the best adhesive for your application.
Contact Us or Request a Sample
Trusted Bonding Solutions for Acrylics, ABS, Vinyls, and Structural Sign Assemblies
Weld-On is a leading name in high-performance adhesives for plastic bonding. Now available through Chemical Concepts, this robust collection of solvent cements and structural adhesives is ideal for sign fabricators seeking clarity, strength, and durability. Whether you’re bonding acrylic trim caps, rigid vinyls, or mounting hardware, Weld-On offers a dependable solution engineered for your production needs.
From fast-setting acrylic adhesives to UV-resistant structural solutions, discover Weld-On products that simplify fabrication and deliver professional-grade results.
Why Weld-On for Sign Fabrication?
-
Crystal-clear finishes for retail signage and displays
-
Fast setting to keep your workflow moving
-
Reliable weatherability for indoor and outdoor use
-
Bonds to a wide range of plastics including acrylic, polycarbonate, ABS, and PVC
-
Meets low-VOC requirements in select SKUs
Featured Adhesives by Material
Below is a streamlined comparison chart to help you select the right Weld-On adhesive for your application:
Weld-On Adhesive Selector
| Product | Type | Best For | Key Features |
|---|---|---|---|
| Weld-On 3 | Solvent Cement | Acrylic | Ultra-thin, fast set, non-flammable |
| Weld-On 4 | Solvent Cement | Acrylic | Moderate set, non-flammable |
| Weld-On 4SC | Solvent Cement | Acrylic | Fast set, improved flow |
| Weld-On 16 | Solvent Cement | Acrylic & Porous Plastics | Medium bodied, strong bond |
| Weld-On 40 | 2-Part Acrylic | Acrylic | Clear joints, 20:1 ratio, excellent weather resistance |
| Weld-On 42 | 2-Part Acrylic | Acrylic | Clear joints, 10:1 ratio, museum-grade clarity |
| Weld-On 1802 | Solvent Cement | Acrylic, ABS, PVC, Butyrate | Versatile, moderate set |
| Weld-On 2354 | Solvent Cement | ABS | Thin, fast set for ABS-only bonding |
| Weld-On 4707 | Solvent Cement | ABS | Milky finish, low-VOC, ABS-only |
| Weld-On 1910 | Solvent Cement | Foamed/Rigid PVC | Thick, slow set |
| Weld-On 2007 | Solvent Cement | PVC | Thin, very fast set |
| Weld-On 4052 | Solvent Cement | PVC, CPVC, ABS, Nylon | Multi-plastic compatibility |
| Weld-On 4784 | Solvent Cement | Flexible Vinyl | Flexible, weather-resistant |
| Weld-On 55 | Urethane (2-Part) | Polycarbonate, ABS, PETG | UV-resistant, retains impact resistance |
| Weld-On 58 | Urethane (2-Part) | Polycarbonate, ABS, PETG | UV-resistant, clear bonds |
| Weld-On 30 | Methacrylate (2-Part) | Mixed Substrates | Fast speed, metals & composites |
| Weld-On 31 | Methacrylate (2-Part) | Mixed Substrates | Medium speed, versatile bonding |
| Weld-On 45 | Methacrylate (2-Part) | Unprepped Metals & Plastics | High strength, corrosion-resistant bonding |
| Weld-On 46C | Acrylic (2-Part) | Aluminum & Acrylic | Clear, thixotropic, primer-less bonding |
Use Cases for Sign Fabricators
-
Edge bonding acrylic letters
-
Mounting sign faces to frames
-
Seamless display assembly
-
Panel fabrication
-
Laminating trim cap and lighting components
Whether you’re building backlit displays, dimensional signage, or acrylic enclosures, Weld-On adhesives deliver speed and performance you can count on.
Need Help Choosing the Right Product?
Our expert sales team is ready to recommend the best adhesive for your application.
Contact Us or Request a Sample
Items 1–12 of 45
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Weld-On® 3 – Legacy MC-Based Acrylic Cement
Legacy MC-based formula. Phase-out begins July 2025. MC-free version now available.
Our Price Starting at $9.48 -
Weld-On® 16 – Legacy MC-Based Acrylic Cement
SKU SCIGRIP #16 Our Price Starting at $5.65 View ProductWeld-On® 16 – Legacy MC-Based Acrylic Cement
Legacy MC-based formula. Phase-out begins July 2025. MC-free version now available.
Our Price Starting at $5.65 -
Weld-On® 45 Structural Methacrylate Adhesive
SKU SCIGRIP #45 Our Price Starting at $20.24 View ProductWeld-On® 45 Structural Methacrylate Adhesive
Fast-curing structural adhesive for metals, plastics, and more. Weld-On 45 forms strong, weatherable bonds in 15 minutes. Ideal for signage and fabrication.
Our Price Starting at $20.24 -
Weld-On® 46C Clear Structural Acrylic Adhesive
Weld-On 46C clear two-part acrylic adhesive for signs and displays. Bonds metals, plastics, and acrylics with translucent cure.
Our Price Starting at $18.36 -
Weld-On® 4 – Legacy MC-Based Acrylic Cement
Legacy MC-based formula. Phase-out begins July 2025. MC-free version now available.
Our Price Starting at $9.48 -
SCIGRIP Weld-On #30 – 50 ML Cartridge – Low Shelf Life / Expired
SKU SCI32970-LSL Original price was: $16.72.$11.47Current price is: $11.47. View ProductSCIGRIP Weld-On #30 – 50 ML Cartridge – Low Shelf Life / Expired
Original price was: $16.72.$11.47Current price is: $11.47. -
Weld-On 42- 50 ml Cartridge – Low Shelf Life / Expired
SKU SCI13578-LSL Original price was: $49.89.$34.94Current price is: $34.94. View ProductWeld-On 42- 50 ml Cartridge – Low Shelf Life / Expired
Original price was: $49.89.$34.94Current price is: $34.94. -
Weld-On® 30 Structural Acrylic Adhesive – 490ml Cartridge
SKU SCI31125 Our Price Starting at $77.40
You save View ProductWeld-On® 30 Structural Acrylic Adhesive – 490ml Cartridge
Weld-On 30 490ml adhesive for large-scale sign and industrial bonding. Fast-curing structural adhesive with high strength and extreme durability.
Our Price Starting at $77.40
You save -
Weld-On® 31 Structural Acrylic Adhesive
Weld-On 31 acrylic adhesive with medium working time. Bonds metals, plastics, and composites with high strength for signs and displays.
Our Price Starting at $16.52 -
Weld-On® 31 Structural Acrylic Adhesive – 490ml Cartridge
SKU SCI31127 Our Price Starting at $70.51
You save View ProductWeld-On® 31 Structural Acrylic Adhesive – 490ml Cartridge
Weld-On 31 490ml acrylic adhesive for signs and displays. Medium-speed, gap-filling, high-strength bonding for metals, plastics, and composites.
Our Price Starting at $70.51
You save
Featured Products
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UltraLok® 9102 A/B Panel Bonding Epoxy
Ultralok 9102 epoxy adhesive is engineered for strong, reliable honeycomb and composite panel bonding with fire safety and thermal resistance.
Our Price Starting at $90.16 -
CarbonBar Versatile Flat Stock
Cut and drill like wood. Support like steel. Replace heavy, expensive custom metal fabrication with aerospace-grade carbon fiber structural blanks.
- 4X stronger & 5X lighter than steel.
- Customize on-site with standard carbide tools.
- 100% weatherproof and corrosion-proof.
↑ Select your Bar Length and Profile above ↑
Our Price Starting at $25.00 -
Chem-Set VST M1V38 Male High Bond Tape Fastener – M1-V38-1/4-20×1″
SKU CCH-M1V38-1/4-20X1P Our Price Starting at $1.66
You save View ProductChem-Set VST M1V38 Male High Bond Tape Fastener – M1-V38-1/4-20×1″
Our Price Starting at $1.66
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Expert Support. -
Same-Day Shipping. -
50+ Years of Service
Chemical-Concepts is a leading supplier of adhesives, chemicals and hardware for nearly every market in the industrial, government and defense sectors. Whatever your industry, we have all the hardware and adhesives you need to hold things together and keep things in place.