Thermal resistance, near zero
Liquid metal alloy base, proprietary modification process. Easy application, compression-resistant, no leakage below 400°C — working silently at the interface where thermal paste falls short.
ULL-1 — liquid metal thermal interface material
Core principle
Liquid metal fills microscopic interface voids, conducting heat directly rather than diffusing it.
Not a different paste.
A different state of matter.
Ull-1 is made from liquid metal alloy, prepared with our proprietary modification process. While conventional thermal paste achieves 3–15 W/(m·K), Ull-1 reaches 30–40 W/(m·K) — two to three times higher than the best silicone-based compounds.
Traditional liquid metal offers higher conductivity (60+ W/(m·K)) but requires difficult application, leaks at high temperatures, and attacks aluminum substrates. Ull-1's proprietary modification process addresses all of this: easy application, compression-resistant, no settling, fully stable below 400°C.
High conductivity, low resistance
Thermal conductivity of 30–40 W/(m·K), interface resistance of just 0.008 K·cm²/W (measured at 0.1mm, 100 psi). Two to three times higher than thermal paste, dramatically reducing the temperature delta between component and heatsink.
Compression-resistant, no leakage at temperature
Traditional liquid metal overflows under pressure or high temperature, attacking nearby components. Ull-1's modification process gives it strong compression resistance — no overflow, no spreading below 400°C, keeping the thermal interface stable long-term.
No settling, no flow under gravity
Density differences in liquid metal alloy can cause sedimentation, degrading thermal performance. Ull-1's modification eliminates settling — a homogeneous, stable compound that maintains performance after 24 months of shelf storage.
RoHS compliant
Meets EU RoHS directive for restricted hazardous substances — no lead, mercury, or cadmium. Safe for consumer, industrial, and data-center deployment, meeting environmental compliance requirements across major global markets.
The extremes of two material classes, synthesized.
Ull-1 finds the optimal balance between applicability and conductivity
Lower is better. 0.008 K·cm²/W is among the lowest in class.
The defining weakness of liquid metal, resolved by proprietary modification.
Easy application is one of Ull-1's key advantages over conventional liquid metal.
No settling, no leakage means Ull-1 never needs to be replaced.
Every number has a source.
Wherever heat is the problem.
Servers & Data Centers
For high-power components like server CPUs and GPUs. In high-density inference and training clusters, thermal interface performance directly determines long-term stability and power efficiency.
Power Modules
As power module density increases, thermal interface materials must handle higher conductivity requirements and stronger compression. Ull-1 remains stable under high-pressure encapsulation.
Smart Terminal Products
Smartphones and tablets require optimal thermal performance in an extremely thin layer. Ull-1's easy application makes it suitable for precision assembly processes in consumer electronics manufacturing.
Network Communications
Network switches and routers require 24/7 continuous operation. Ull-1's no-settling, long-life properties ensure these reliability-critical deployments need no periodic re-application.
Three sizes for three stages.
Ull-1 ships in 20 g, 50 g, and 100 g configurations, matching sample evaluation, lab development, and production stages. Custom bulk packaging is available — contact the sales team for pricing.
Custom bulk quantities available
Ideal for first evaluation and small-scale testing
For lab R&D and mid-scale deployment
For production line use at volume
Request a sample
or get a quote.
Liquid metal thermal paste is available in custom packaging. Fill out the form and we'll respond within 24 hours.
What we need
- Desired size (20 g / 50 g / 100 g)
- Application and component type
- Expected order volume
Lower the resistance.
Unlock the performance.
Ull-1 is available for custom packaging and bulk orders. Contact us to request a sample or get full specifications and pricing.