GENERAL DESCRIPTION
Momentive SILCOOL™ TIA266GF is a two-component, thermally conductive silicone material that is dispensed as a liquid and cured in place to create an optimized heat path for highly efficient heat transfer. Formulated with a unique non-slumping pasty consistency, this material provides excellent physical stability immediately after application, preventing run-off or unintended migration before the curing process is complete[cite: 96]. This makes it an exceptional, high-performance liquid alternative to pre-fabricated thermal pads, allowing engineering teams to design more versatile thermal architectures across a broad array of electronic component layouts.
By conforming seamlessly to the intricate configurations of three-dimensional interface designs, SILCOOL™ TIA266GF eliminates microscopic air gaps to maximize contact area and minimize thermal resistance. After curing, the material retains its excellent softness, allowing it to provide vital stress relief to fragile circuitry during aggressive thermal cycling[cite: 101]. It features a convenient, easy-to-use 1:1 mixing ratio and accelerates production throughput via a fast, low-temperature curing profile. This product is officially distributed in Vietnam by Prostech, complete with comprehensive technical support and tailored solutions for your manufacturing processes.
FEATURES & BENEFITS
- **Premium Thermal Conductivity (6.5 to 7.2 W/mK):** Provides exceptional thermal dissipation to quickly draw heat away from high-flux semiconductors, ensuring long-term system reliability.
- **Non-Slumping Pasty Consistency:** Delivers immediate structural stability post-dispensing, keeping the compound perfectly positioned without running off during handling.
- **Liquid-Dispensed Alternative to Thermal Pads:** Adapts dynamically to variable gaps and complex 3D topologies, reducing component inventory and eliminating the manual assembly labor of pre-cut pads.
- **Fast, Low-Temperature Curing:** Achieves full cure in just 1 hour at 70°C or 24 hours at room temperature, dramatically optimizing manufacturing cycle times and reducing energy consumption.
- **Excellent Post-Cure Softness Retention (Hardness Shore 00 45):** Minimizes physical stress on delicate components by remaining highly compliant and cushioning components against thermal expansion and contraction.
- **Convenient 1:1 Mixing Ratio:** Simplifies automated meter-mix dispensing configurations by weight or volume, minimizing setup errors and streamlining production integration.
- **UL 94 V-0 Equivalent Flame Retardancy:** Complies with rigid electronics safety regulations to prevent flame propagation in critical device assemblies.
- **Robust Electrical Insulation (10 kV/mm Dielectric Strength):** Ensures safe electrical isolation across high-voltage interfaces to prevent operational short circuits.
TYPICAL APPLICATIONS
- Used in the assembly process of automotive electronics, power converters, and high-frequency telecommunication modules where extreme heat flux demands top-tier thermal management.
- Ideal for solving production line bottlenecks in high-density multi-level gap designs where pre-fabricated thermal pads fail to conform evenly.
- Perfect for high-throughput electronic production lines utilizing robotic liquid dispensing systems to achieve rapid, automated assembly cycles.
- Prostech provides professional application testing, comprehensive consultation on substrate cure-inhibitors (such as sulfur, nitrogen, and phosphorus compounds), and customized automated dispensing solutions for your manufacturing facilities in Vietnam.
| Property Category | Parameter / Test Method | Unit | Value / Specification |
|---|---|---|---|
| Uncured Properties | Appearance (Part A) | – | Pale Pink |
| Uncured Properties | Appearance (Part B) | – | Red |
| Uncured Properties | Viscosity @ 10s⁻¹ (Part A) (Rheometer, PP25, 1mm gap) | Pa·s | 200 |
| Uncured Properties | Viscosity @ 10s⁻¹ (Part B) (Rheometer, PP25, 1mm gap) | Pa·s | 200 |
| Uncured Properties | Flow Rate (Part A) (30 cc syringe) | g/min | 40 |
| Uncured Properties | Flow Rate (Part B) (30 cc syringe) | g/min | 40 |
| Uncured Properties | Mixing Ratio by Weight or Volume | – | 100:100 (1:1) |
| Uncured Properties | Workable Life @ 23°C | Hours | 1 |
| Uncured Properties | Cure Condition @ 70°C | Hours | 1 |
| Uncured Properties | Cure Condition @ 23°C | Hours | 24 |
| Cured Properties | Appearance after Cure (60 min @ 70°C) | – | Pink |
| Cured Properties | Density | g/cm³ | 3.4 |
| Cured Properties | Hardness (Shore 00) | – | 45 |
| Cured Properties | Thermal Conductivity (ASTM D 5470 by Longwin) | W/(m·K) | 6.5 |
| Cured Properties | Thermal Conductivity (Hot Disc Method) | W/(m·K) | 7.2 |
| Cured Properties | UL 94 Flame Retardancy | – | V-0 equivalent |
| Cured Properties | Volume Resistivity | Ω-cm | 1.0 × 10¹² |
| Cured Properties | Dielectric Strength | kV/mm | 10 |
| Packaging Options | Available Formats | – | 300cc Cartridge, 400cc SBS Cartridge, 20oz SEMCO Cartridge, 20L Plastic Pail |




