PERMABOND TA 4246
MMA structural adhesive approved for Boeing and Airbus — Aerospace Premium
Aerospace-Star — Boeing HMS 16-1226 + Airbus IP510-04-036-01 approved, replaces riveting and welding.
Documents
Internal reference:
49-4246.KT.G310
Permabond TA4246 is a premium aerospace MMA structural adhesive with dual approval (Boeing HMS 16-1226 + Airbus IP510-04-036-01) — the adhesive replacement for rivets and welding in weight-critical structures with the highest peel and impact strength requirements.
In the no-mix process, TA4246 is applied to one bonding surface, and Permabond Initiator 46 to the other—when joined, the initiator activates the adhesive. The effective mixing ratio is 10:1; no mixing is required, and there is no pot life limitation.
With a steel shear strength of 33–35 N/mm², a peel strength of 150–180 N/25 mm, and an impact strength of 50–60 kJ/m², TA4246 is one of the strongest structural adhesives in the Permabond family. Bonding polycarbonate, PVC, ABS, glass, and GRP leads to substrate failure—the bond is stronger than the material. Aerospace standard for seat, floor, and structural components.
Boeing HMS 16-1226 Rev C + Airbus IP510-04-036-01 — Permabond TA4246 is approved according to the two most important global aerospace structural adhesive specifications. It replaces riveting and welding for weight-saving, durable bonds with the highest peel and impact strength (150–180 N/25 mm peel resistance, 50–60 kJ/m² impact).
What distinguishes Permabond TA 4246
What is Permabond TA 4246 used for?
processing
Recommended accessories
Important instructions
Which Permabond MMA structural adhesive is suitable for which application?
Permabond TA 4246 in direct comparison with related products of the TA series.
Permabond TA 4246 Current product | Permabond TA439 → | Permabond TA4200 → | Permabond TA452 → | |
|---|---|---|---|---|
| Application | Aerospace structural adhesive MMA — Boeing + Airbus approved | Lower strength, without aerospace approval | 1:1 mixture, standard industry | High-strength industrial alternative |
| Mixing ratio | 10:1 volume parts (with initiator 46) | 10:1 | 1:1 | — |
| Handling strength | 2–4 min @ 23 °C | — | — | — |
| Steel shear strength | 33–35 N/mm² | 20–25 N/mm² | 23–25 N/mm² | 28–32 N/mm² |
| peeling resistance | 150–180 N/25 mm | — | — | — |
Technical data for PERMABOND TA 4246
| Product information | |
|---|---|
| brand | Permabond |
| Manufacturer | Permabond Engineering Adhesives Ltd |
| Container | 310 ml |
| Country of origin | Italy |
| Mixing ratio | 10:1 |
| Performance at final strength | |
|---|---|
| Steel | 33-35 N/mm² |
| Tensile strength (ISO37) | 30 N/mm² |
| Impact resistance (astm D-950) | 50-60 kJ/m² |
| Coefficient of thermal expansion (ASTM D-696) | 80 x 10-6 1/K |
| Thermal conductivity | 0.1 W/(mK) |
| Volume resistivity (ASTM D-257) | 2 x 1013 Ohm.cm |
| Properties of the adhesive | |
|---|---|
| Maximum gap filling capacity up to | 0.5 mm |
| Handling strength at 23°C | 2-4 minutes |
| Functional strength | 15-30 minutes |
| Final strength at 23°C | 24 hours |
| Properties of the permanent bond | |
|---|---|
| Peel resistance (ISO 4578) | 150-180 N/25mm |
| Dielectric constant (ASTM D-150) | 4.6 |
| Physical properties | |
|---|---|
| Chemical group | Methyl methacrylate |
| Color | amber yellow |
| Viscosity 20rpm | 15000-35000 |
| Specific gravity | 1.0 |
| Electrical properties | |
|---|---|
| Dielectric strength (ASTM D-149) | 30-50 kV/mm |
| Shear strength ISO 4587 in N/mm² | |
|---|---|
| aluminum | 20-30 N/mm² |
| Thermal properties | |
|---|---|
| Operating temperature (°C) | -40 to 120 |
For binding values, please refer to the technical data sheet (TDS) in the "Documents" tab.
Documents and datasheets
Click on a document for a preview or the download icon for a direct download.
Technical Data Sheets (TDS) 3
Frequently asked questions about Permabond TA 4246
Practical application and design questions — answered by SILITECH.
Premium aerospace structural adhesive — Boeing HMS 16-1226 + Airbus IP510-04-036-01, replaces rivets and welding.
TA series MMA structural adhesives typically operate using a no-mix process: initiator on one surface, adhesive on the other—upon joining, the initiator activates the adhesive. Mixing ratio: 10:1 parts by volume (with initiator 46). Handling strength after 2–10 minutes, final strength after 24 hours at 23 °C.
MMA (methyl methacrylate) structural adhesives offer higher impact and peel strength than conventional two-component epoxies—important for dynamically stressed bonds. The no-mix application with a separate initiator eliminates pot life limitations. Curing time is typically faster (minutes instead of hours).
Permabond TA 4246 reliably bonds: Steel: 33–35 N/mm²; Aluminum: 20–30 N/mm²; Polycarbonate: 19 N/mm² (substrate failure); PVC: 19 N/mm² (substrate failure); ABS: 12 N/mm² (substrate failure); Glass: 16 N/mm² (substrate failure). Substrate failure is common with polycarbonate and PVC (bond stronger than material).
Permabond TA 4246 is approved according to: Airbus IP510-04-036-01, Boeing HMS 16-1226 Rev C.Compliance letters and detailed certificates are available from Permabond/SILITECH.
Permabond TA 4246 is an aerospace structural adhesive MMA — Boeing + Airbus approved (10:1 volume parts (with Initiator 46) mix). Permabond TA439 is an MMA structural adhesive (10:1) — lower strength, without aerospace approval.
From the Permabond MMA range: Permabond TA 4246 (Aerospace structural adhesive MMA — Boeing + Airbus approved); Permabond TA439 (MMA structural adhesive); Permabond TA4200 (1:1 structural adhesive); Permabond TA452 (Toughened Acrylic). For aerospace premium, see TA4246 (Boeing + Airbus approved). For highest industrial strength without the aerospace surcharge, see TA452.
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Product specifications
| Product information | |
|---|---|
| brand | Permabond |
| Manufacturer | Permabond Engineering Adhesives Ltd |
| Container | 310 ml |
| Country of origin | Italy |
| Mixing ratio | 10:1 |
| Performance at final strength | |
|---|---|
| Steel | 33-35 N/mm² |
| Tensile strength (ISO37) | 30 N/mm² |
| Impact resistance (astm D-950) | 50-60 kJ/m² |
| Coefficient of thermal expansion (ASTM D-696) | 80 x 10-6 1/K |
| Thermal conductivity | 0.1 W/(mK) |
| Volume resistivity (ASTM D-257) | 2 x 1013 Ohm.cm |
| Properties of the adhesive | |
|---|---|
| Maximum gap filling capacity up to | 0.5 mm |
| Handling strength at 23°C | 2-4 minutes |
| Functional strength | 15-30 minutes |
| Final strength at 23°C | 24 hours |
| Properties of the permanent bond | |
|---|---|
| Peel resistance (ISO 4578) | 150-180 N/25mm |
| Dielectric constant (ASTM D-150) | 4.6 |
| Physical properties | |
|---|---|
| Chemical group | Methyl methacrylate |
| Color | amber yellow |
| Viscosity 20rpm | 15000-35000 |
| Specific gravity | 1.0 |
| Electrical properties | |
|---|---|
| Dielectric strength (ASTM D-149) | 30-50 kV/mm |
| Shear strength ISO 4587 in N/mm² | |
|---|---|
| aluminum | 20-30 N/mm² |
| Thermal properties | |
|---|---|
| Operating temperature (°C) | -40 to 120 |
| Keywords | |
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| Keywords | |
Documents and datasheets
Safety Data Sheets (SDS) and Technical Data Sheets (TDS) are available for download:
- Permabond TA 4246 - Fiche Technique FR.pdf (302 KB)
- Permabond TA 4246 - Fiche de Sécurité FR.pdf (477 KB)
- Permabond TA 4246 - Safety Data Sheet EN.pdf (474 KB)
- Permabond TA 4246 - Safety Data Sheet DE.pdf (478 KB)
- Permabond TA 4246 - Technical Data Sheet EN.pdf (280 KB)
- Permabond TA 4246 - Technical Data Sheet DE.pdf (332 KB)