Permabond TA04820K050C1607, TA4820 Toughened Acrylic Adhesive, 50ml, Case of 12
Permabond TA4820 — 2-Part Toughened Methacrylate Adhesive, 50ml 1:1 Cartridge, Case of 12 (TA04820K050C1607)
Permabond TA4820 (SKU: TA04820K050C1607) is a 2-part, 1:1 ratio toughened methacrylate (acrylic) adhesive for structural bonding of thermoplastics, thermosets, metals, and composites. Excellent adhesion to as-received metal surfaces — forms high-strength bonds without surface preparation. Thixotropic paste consistency for easy dispensing through the included static mixer with good gap-filling and non-sag properties. Long fixture time allows accurate alignment of larger assemblies. Cures rapidly at room temperature. Excellent durability and resistance to common industrial solvents, fuels, and harsh environmental conditions. Supplied in 50ml dual cartridges with static mixer included; sold in cases of 12.
Key Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | TA04820K050C1607 |
| Product | TA4820 |
| Type | 2-part toughened methacrylate (acrylic) adhesive |
| Mix Ratio | 1:1 |
| Cartridge Volume | 50ml |
| Static Mixer | Included with each cartridge |
| Case Quantity | 12 cartridges per case |
| Cure | Room temperature |
| Consistency | Thixotropic paste — non-sag, gap-filling |
| Surface Prep Required | Not required for metals (as-received surfaces) |
| Substrate Compatibility | Thermoplastics, thermosets, metals, composites |
| Brand | Permabond |
Key Features
- No surface preparation required for metals — bonds to as-received metal surfaces, reducing process steps and cycle time
- Toughened formulation — high impact, peel, and shear strength for joints subject to dynamic loading and vibration
- Room temperature cure — no oven or heat required; cures in place at ambient conditions
- Long fixture time — allows accurate alignment and positioning of larger components before the bond sets
- Thixotropic, non-sag — stays in place on vertical surfaces; good gap-filling for uneven or rough mating surfaces
- Excellent chemical resistance — resists common industrial solvents, fuels, and harsh environmental conditions
Frequently Asked Questions
Does TA4820 require surface preparation before bonding metals?
No — TA4820 is specifically formulated to provide excellent adhesion to as-received metal surfaces without degreasing, abrading, or priming. This is a key advantage of toughened methacrylate adhesives over epoxies, which typically require thorough surface preparation for maximum bond strength. For maximum performance on other substrates, light surface preparation may still be beneficial — refer to the Permabond TDS.
What is the difference between TA4820 and Permabond ET-series epoxies?
TA4820 is a toughened methacrylate (acrylic) adhesive, while ET-series products are epoxies. Key differences: TA4820 cures at room temperature without surface prep on metals and offers higher impact and peel resistance (toughened). Epoxies like ET5147 generally offer higher temperature resistance and better chemical resistance. Methacrylates are preferred when bonding speed, toughness, and minimal surface prep are priorities.
How long is the fixture time and full cure time for TA4820?
TA4820 has a long fixture time to allow alignment of larger assemblies. Full cure is achieved at room temperature. Refer to the Permabond TA4820 TDS for specific fixture time, handling strength, and full cure time data at your operating temperature.
Is a dispensing gun required?
Yes — the 50ml 1:1 dual cartridge requires a compatible manual or pneumatic dispensing gun. The static mixer is included with each cartridge. Contact MTE Solutions for dispensing gun recommendations compatible with 50ml 1:1 cartridges.
What substrates does TA4820 bond?
TA4820 bonds thermoplastics, thermosets, metals, and composites. It is particularly well-suited for mixed-substrate assemblies where different materials must be bonded together. Some low-surface-energy plastics (polyethylene, polypropylene, PTFE) may require surface activation. Refer to the Permabond TDS for substrate-specific guidance.
