DOWSIL TC-5121C Thermal Grease | Single-Part 2.8W/mK Pump-Out Resistant Electronics Cooling

Basic Product Properties

TC-5121 C is a single-part, non-curing thermal grease with greenish-yellow viscosity. It delivers 2.8W/mK thermal conductivity, low thermal resistance (0.09℃·cm²/W), and pump-out resistance, designed for mid-to-high-end electronics thermal interfaces.

Product Description

Featuring a filled polydimethylsiloxane matrix with optimized polymer structure, this compound utilizes thermally conductive metal oxides to create efficient heat-transfer bridges between components and heat sinks. By minimizing interfacial thermal resistance and maintaining stable heat sink seals, it enhances device efficiency and reliability in compact, high-power designs.

Advanced Properties

Pump-Out Resistance: Optimized polymer matrix minimizes material migration during thermal cycling.
Ultra-Thin Bond Lines: Enables minimal Bond Line Thickness (BLT) for maximized contact efficiency.
Process Flexibility: Non-curing formulation eliminates oven requirements; compatible with screen/stencil printing and dispensing.

Application Scenarios

1. 1. Gaming GPU Cooling: Used on NVIDIA/AMD high-end GPU dies, where 2.8W/mK conductivity manages transient power spikes.
2. 5G Base Station PAs: Deployed in Ericsson Air 6488 RF power amplifiers for GaN device thermal management.
3. EV On-Board Chargers: Ensures cycling stability in BYD e-platform 40kW fast-charging modules.

Typical Properties Table

1. Who are we?

We are Shenzhen Huazhisheng New Material Technology Co., Ltd., a professional industrial adhesives and sealants supplier based in China since 2018. we serve global markets: Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).

2. What products do you offer?

we supply high-performance adhesives and sealants from global leaders including:

Cemedine, Dow Corning, Shin-Etsu, Araldite, and Momentive,etc.

3. How do you guarantee product quality?

Quality assurance through:

Mandatory pre-production samples approval

Final inspection by QC team before shipment

International certifications: SGS, UL, FDA, RoHS, REACH

4. Why choose us over other suppliers?

Reliable Supply:Authentic products from top manufacturers

Expert Support:Technical guidance for product selection

Global Compliance:Certifications meeting target market standards

Efficient Service:Customized solutions & professional support

5. What services do you provide?

Delivery​:EXW/FOB/CIF

Payment​:USD/EUR/CNY/HKD via T/T, L/C

Support​:Technical consultation & logistics coordination