Description
Permabond® TA4204 is a two-part, 1:1 mix ratio toughened acrylic adhesive designed for high-strength bonding across a wide variety of substrates. Its colorless, transparent finish makes it ideal for aesthetic applications where a crystal clear bond line is required.
This adhesive is a superior alternative to solvent welding, eliminating the use of hazardous chemicals like dichloromethane while producing a stronger, cleaner joint. TA4204 bonds acrylic (Perspex®), composites, metals, glass, ceramics, and more, making it versatile for both industrial and decorative assemblies .
Key Features & Benefits
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Crystal Clear Finish – seamless, invisible bond line for high-end applications.
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High Shear & Peel Strength – structural-grade performance on metals, plastics, and composites.
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Fast Room-Temperature Cure – fixture time in 1–2 minutes, handling strength in 5–10 minutes.
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Excellent Chemical & Impact Resistance – durable under demanding conditions.
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Versatile Application Methods – apply with a mixing nozzle or bead-on-bead.
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Replaces Solvent Welding – safer, cleaner, and produces better appearance than traditional methods.
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Bonds to Unprepared Aluminum – strong adhesion even without surface treatment.
Common Applications
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Acrylic displays & point of sale items (Perspex®, Plexiglass®)
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Decorative glass and metal bonding
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Composite panel assemblies
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Furniture and architectural fixtures
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General manufacturing where a clear, strong adhesive is required
Technical Specifications
| Property | Value |
|---|---|
| Mix Ratio | 1:1 |
| Appearance (Mixed) | Clear, colorless |
| Viscosity @ 25°C | 100,000 mPa·s (A) / 10,000 mPa·s (B) |
| Gap Fill | 3 mm (0.12 in) |
| Fixture Time @ 23°C | 1–2 minutes |
| Handling Strength @ 23°C | 5–10 minutes |
| Working Strength @ 23°C | 20–25 minutes |
| Full Cure @ 23°C | 24 hours |
| Shear Strength (ISO4587) | 18–20 N/mm² (Steel), 15–17 N/mm² (Al-Gritblasted), 4–5 N/mm² (PMMA) |
| Peel Strength (ISO4578) | 50 N/25mm (11 PIW) |
| Hardness (ISO868) | 50–60 Shore D |
| Thermal Expansion (ASTM D-696) | 80 × 10⁻⁶ 1/K |
| Service Temperature | -40°C to brief exposure 200°C |
| Dielectric Strength (ASTM D-149) | 30–50 kV/mm |
| Volume Resistivity (ASTM D-257) | 2 × 10¹³ Ω·cm |
Compliance & Handling
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Avoid contact with strong oxidizers.
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Some thermoplastics may be affected; test for compatibility.
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Store at 2–7°C (35–45°F).
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Observe standard industrial hygiene practices during use .
Compatible Substrates
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Acrylic (PMMA, Perspex®, Plexiglass®)
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Metals (aluminum, steel, galvanized steel)
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Glass and ceramics
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Composites (carbon fiber, polyester GRP, epoxy FRP)
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ABS, PC, PVC
Packaging & Ordering
Permabond TA4204 is available in convenient cartridge formats for manual or automated dispensing. For technical support or bulk ordering, contact Chemical Concepts.
Why Buy from Chemical Concepts?
Chemical Concepts supplies Permabond structural adhesives with expert guidance and fast delivery. Our team helps you select the best product for your application needs.
Call 800-220-1966 or Request a Quote today.
Explore our range of Structural Acrylic Adhesives.
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