Description
Safer Solvent Cement with Identical Performance to Legacy Weld-On 4
Weld-On® 4 DCM & TCE Free is a water-thin, fast-setting acrylic cement specifically designed for crystal-clear bonds—without the blushing. Reformulated to eliminate methylene chloride (DCM) and trichloroethylene (TCE), this next-generation product offers the same trusted performance with improved safety, simplified SDS compliance, and full alignment with 2026 EPA regulations.
Compared to Weld-On 3, this formula provides slightly longer working and fixture times, giving users added precision for alignment without sacrificing speed. It is especially valuable for optical-grade signage, display cases, and medical enclosures where finish clarity is critical.
Key Features & Benefits
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DCM & TCE Free – Fully compliant with EPA solvent bans effective January 2026
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Blush-Resistant – Minimizes white marks in high-humidity environments
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Water-Thin Viscosity – Ideal for capillary and soak bonding of acrylic (PMMA)
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Fast Fixture Time – Sets in approximately 3 minutes
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Crystal-Clear Results – Delivers professional finishes in visible applications
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Same Process, Safer Chemistry – No need to retrain technicians or alter your workflow
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Low VOC – Reduced health risks in ventilated or enclosed areas
Common Applications
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Bonding acrylic letters to signage panels
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Display case and POP fabrication
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Medical device enclosures
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Trim capping of acrylic cutouts
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Plastic container bonding
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Acrylic subassemblies in manufacturing and fabrication
Technical Specifications
| Property | Value |
|---|---|
| Color | Clear |
| Viscosity | Water-thin |
| Working Time | 1–2 minutes |
| Fixture Time | 3 minutes |
| Cure Time (80% strength) | 72 hours |
| Ultimate Bond Strength | 2,429 psi |
| Specific Gravity | 1.164 ± 0.01 |
| Shelf Life | 2 years (sealed container) |
| Recommended Substrates | Cast & extruded acrylic (PMMA) |
| Not for Use On | Cross-linked acrylic |
Packaging & Stock Numbers
| Size | Units/Case | Approx. Lbs/Case | Stock Number |
|---|---|---|---|
| Gallon | 4 | 51 | 16374 |
| Quart | 4 | 14 | 16377 |
| Pint | 6 | 10 | 16375 |
| ¼ Pint | 24 | 11 | 16376 |
📦 Ships in sealed metal cans. UN1133 Class 3 Flammable Liquid.
Contact us for bulk orders, SDS, or evaluation samples.
Compliance & Regulatory Info
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EPA 2024 Rule: MC-based solvent cements prohibited after Jan 28, 2026
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Weld-On 4 DCM & TCE Free meets all regulatory mandates
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Ideal for facilities without Workplace Chemical Protection Programs (WCPP)
Why Choose Weld-On 4?
If you need optically clear, durable acrylic bonds without white marks, Weld-On 4 DCM & TCE Free is your best-in-class solution. Perfect for sign makers, plastic fabricators, and medical OEMs, this blush-resistant cement ensures high-performance bonding with a cleaner, safer formulation.
Ordering & Support
Call: 800-220-1966
Email: [email protected]
Ask about evaluation samples or transitioning your workflow to MC-Free options.
Related Products
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Weld-On 3 DCM & TCE Free – Fastest set time, ideal for basic acrylic bonding
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Weld-On 16 DCM & TCE Free – Medium-bodied, gap-filling acrylic cement
- Legacy Weld-On 4 (MC-based) – Available while supplies last
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