Internal reference:
49-441.FL.G020
Technical Data
Typical values, not a specification. The technical data sheet (TDS) is binding.
Product Information
- Brand
- Permabond
- Manufacturer
- Permabond Engineering Adhesives Ltd
- UFI (Unique Formula Identifier)
- YQX0-2098-Q00N-J2T8
Physical Properties
- Color
- Amber
- Viscosity mPa.s
- <50
- Specific Gravity
- 1.0
Thermal Properties
- Storage Temperature (°C)
- 5 to 25°C
Features
- Flashpoint
- >90°C
- On-part life
- 30 minutes
Product Description
Permabond Initiator 41 is a no-mix activator (amber, <50 mPa·s) for Permabond TA structural adhesives — long open time possible, solvent-free, for brushing or spraying.
Permabond initiators for the TA structural adhesive range — no-mix activators for brushing or spraying on before the acrylate adhesive for immediate or delayed curing. Initiator 41 is tailored to specific applications — its key properties and areas of use are listed below.
Permabond Initiator 41 is used in conjunction with Permabond TA (Structural Acrylic) adhesives as a no-mix resin and activator system. Its solvent-free formulation allows for a long open time—alternatively, components can be joined immediately without waiting for evaporation.
What distinguishes Initiator 41
What is Initiator 41 used for?
Processing
Recommended accessories
Initiator 41 in comparison
Direct comparison with related Permabond products from our range.
Initiator 41 Current Product |
Initiator 43 → | Initiator 46 → | Activator CSA (1 L) → | |
|---|---|---|---|---|
| Chemical Base | Activator (No-Mix) | Activator (No-Mix) | Activator (No-Mix Aerospace) | CA Activator (solvent-based) |
| Viscosity | <50 mPa·s | 10 mPa·s | 70 mPa·s | Liquid |
| Grade | Industrial | Industrial | Aerospace TA4246 | Industrial |
| Color | Amber | Green | Amber | see TDS |
| Set Time | 30 min On-Part | 30 min On-Part | 30 min On-Part | evaporates |
| Full Cure | TA-System dependent | TA-System dependent | TA-System dependent | in CA reaction |
| Main application | Permabond TA Activator | TA Activator (Spray) | Aerospace TA4246 | CA Activation Industry |
Frequently asked questions about Initiator 41
Practical application and design questions — answered by SILITECH.
Permabond Initiator 41: No-mix activator (amber, <50 mPa·s) for Permabond TA structural adhesives — long open time possible, solvent-free, brush or spray application. Main applications: Permabond TA structural bonding, long working time, instant bonding.
Permabond TA structural adhesives use a no-mix system: the initiator is brushed onto one bonding surface, and the TA adhesive onto the other — when joined, they react between the components. No pre-mixing, no pot life limitation of the mixed mass. On-part life 30 minutes — components can be assembled with the TA adhesive after a delay following initiator application. Ideal for high-throughput structural bonding.
Store in the unopened original container in a dry, cool place — Permabond adhesives typically between +5 and +25 °C, exact values see TDS. Consult the Safety Data Sheet (SDS) before use. Observe the expiry date on the packaging. Store cyanoacrylates cool (ideally refrigerated) for maximum shelf life.
In the comparison table above, you will find related Permabond products with different properties — viscosity, mixing ratio, special certification. If you are unsure about the optimal choice, we will be happy to advise you — contact SILITECH with your specific application (substrate pairing, load, curing condition).


Silicones, silicone oils, sprays
Casting and potting resins