Silicones, silicone oils, sprays
Casting and potting resins
Technical Data
Typical values, not a specification. The technical data sheet (TDS) is binding.
Product Information
- Brand
- Permabond
- Manufacturer
- Permabond Engineering Adhesives Ltd
- Container
- 65 ml + 10 ml
- Mixing Ratio
- 10:1
Performance at Full Cure
- Tensile strength (ISO37)
- 30 N/mm²
- Impact strength (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
Bonding Properties
- 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
- Color
- amber yellow
- Viscosity at 20 rpm
- 15000-35000
- Specific Gravity
- 1.0
Electrical Properties
- Dielectric strength (ASTM D-149)
- 30-50 kV/mm
Shear strength ISO 4587 in N/mm²
- Steel
- 33-35 N/mm²
- Aluminum
- 20-30 N/mm²
Thermal Properties
- Operating temperature (°C)
- -40 to 120
- Storage Temperature (°C)
- 2-7
Product Description
The complete Permabond TA4246 + Initiator 46 package contains the aerospace MMA structural adhesive together with the required initiator — ready for immediate use in Boeing/Airbus certified structural bonding applications.
TA4246 is a no-mix MMA structural adhesive: The adhesive is applied to one surface, the initiator 46 to the other — when joined, the initiator activates the adhesive.
The complete package simplifies procurement and warehousing — the adhesive and initiator are a perfect match, both from Permabond. Approved according to Boeing HMS-16-1226-Rev-C and Airbus IP510-04-036-01.
Permabond TA4246 + Initiator 46 as a complete package — Aerospace MMA structural adhesive with the required initiator. Boeing and Airbus approved, ready for immediate use without separate procurement of the initiator.
What distinguishes Permabond TA 4246 + Initiator 46
What is Permabond TA 4246 + Initiator 46 used for?
Processing
Recommended accessories
Important Notes
Which Permabond MMA structural adhesive for which application?
Permabond TA 4246 + Initiator 46 in direct comparison with related products of the TA series.
Permabond TA 4246 + Initiator 46 Current Product | Permabond TA 4246 → | Permabond TA437 + Initiator 41 → | Permabond TA435 + Initiator 41 → | |
|---|---|---|---|---|
| Application | Aerospace structural adhesive complete package — TA4246 + Initia | Adhesive only (without initiator) | Standard Industry Package | Standard Industry Package |
| Mixing ratio | 10:1 volume parts (adhesive to initiator) | 10:1 | — | — |
| Handling strength | — | — | — | — |
| Steel shear strength | 33–35 N/mm² | 33–35 N/mm² | 14–20 N/mm² | 15–25 N/mm² |
| Peel resistance | 150–180 N/25 mm | 150–180 N/25 mm | — | — |
Frequently asked questions about Permabond TA 4246 + Initiator 46
Practical application and design questions — answered by SILITECH.
Complete package TA4246 + Initiator 46 — Aerospace structural adhesive with initiator in one order.
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 by volume (adhesive to initiator). Handling strength after 2–10 minutes, final strength after 24 hours at 23 °C.
MMA structural adhesives (methyl methacrylate) offer higher impact and peel strength than classic 2K epoxies — important for dynamically loaded bonds. The no-mix processing with a separate initiator eliminates the pot life limitation. Cure time is typically faster (minutes instead of hours).
Permabond TA 4246 + Initiator 46 bonds reliably: Steel: 33–35 N/mm²; Aluminum: 20–30 N/mm². Substrate failure is common with polycarbonate and PVC (bond stronger than material).
Permabond TA 4246 + Initiator 46 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 + Initiator 46 is a complete aerospace structural adhesive package — TA4246 + Initiator 46 (10:1 volume parts (adhesive to initiator) mix). Permabond TA 4246 is also available as a single adhesive (10:1) — adhesive only (without initiator).
From the Permabond MMA range: Permabond TA 4246 + Initiator 46 (Aerospace structural adhesive complete package — TA4246 + Initiator 46); Permabond TA 4246 (adhesive only); Permabond TA437 + Initiator 41 (MMA standard package); Permabond TA435 + Initiator 41 (MMA standard package). For premium aerospace, see TA4246 (Boeing and Airbus approved). For highest industrial strength without an aerospace surcharge, see TA452.