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VK-XR420W

High-Flow Low-Stress Thermal Gel for High-Speed Production
VK-XR420W is designed from the TDS specification for reliable thermal management. Rapidly lowers viscosity under shear to improve dispensing efficiency, then maintains vertical stability while protecting fragile components.

Thermal Conductivity：4.2 W/m-K
Hardness / Compression：pre-cured one-part thermal gel with >50 g/min high-speed dispensing and low stress
Material Type：filled silicone high-flow low-stress thermal gel
Core Advantage：Rapidly lowers viscosity under shear to improve dispensing efficiency, then maintains vertical stability while protecting fragile components.

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Detailed Introduction

Performance Positioning and Thermal Value
VK-XR420W is  4.2 W/m-K thermal performance together with pre-cured one-part thermal gel with >50 g/min high-speed dispensing and low stress. This design helps establish a stable thermal path between the heat source and heat sink, lowering interface resistance so high-density electronics can maintain more consistent cooling efficiency during long operation.

Dispensing Process and Low-Stress Gap Filling
The pre-cured one-part design requires no mixing or secondary cure and supports automated dispensing, can packaging, or syringe supply. The gel flows into small voids under low pressure while holding shape, reducing pump-out, slump, and loading risk on fragile components.

Recommended Application Scenarios
VK-XR420W is suitable for High-speed automated dispensing, screen-printing processes, miniaturized electronics, optical communication modules, automotive sensors, and fragile pin components. Its material profile is especially useful for designs that need to balance heat transfer, assembly reliability, and long-term stability.