WS-668-Y30S Two-Component Thermal Silicone Gel
Hardness (Shore 00): 65 ± 10
Thermal conductivity (W/m·K): 3.7 ± 0.1
Specific gravity: 3.2 ± 10%
Flammability rating: UL94 V-0
Volume resistivity (Ω·cm): ≥1.0 × 10¹⁴
Dielectric strength (kV/mm): ≥10
Mix ratio (weight): 1:1
Working time (25°C): 30–50 min
Initial curing time: 2–3 h / 25°C; 20–30 min / 50°C; 10–15 min / 80°C
Replacement compatibility: Pin-to-pin replacement for Dow TC-4040
Thermal Interface Materials
It is widely used in thermal conductance, sealing and caulking protection of power battery packs and energy storage batteries of new energy vehicles.
Key Features
- Viscosity: A/B 35±10 (Pa·s or W – to be matched)
- Benchmarked for / replacement for: Dow (Dow Corning) TC-4040
Technical Data
| Test item | WS-668-Y30S |
|---|---|
| Mix ratio | 1:1 |
| specific gravity | 3.2±10% |
| Working time | 30~50min/25℃ |
| Initial Curing Time | 2~3h/25℃ 20~30min/50℃ 10~15min/80℃ |
| After curing | Soft elastomer |
| (W/m.k)Thermal conductivity | 3.7±0.1 |
| Flammability rating | UL94V-0 |
| (Ω·cm)Volume resistivity | ≥1.0×10¹⁴ |
| (kv/mm)Dielectric strength | ≥10 |
| Test items | WS-668-Y30S |
| appearance | Grey paste |
| Odor | Odorless |
Import Replacement Cross-Reference
| This grade | WS-668-Y30S Two-Component Thermal Silicone Gel, 3.7 W/m·K |
| Replaces | DowTC-4040 — pin-to-pin equivalent |
| Why switch | Same performance window, shorter lead time, direct factory support, no import premium |