HY880 Carbon Thermal Grease 1000g (1kg) – High Conductivity 5.15 W/m·K for CPU, GPU & ASIC Cooling
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HY880 Carbon Thermal Grease 1kg — Industrial Bulk Pack for ASIC Mining & Electronics Repair
The HY880 Carbon Thermal Grease (1000g / 1kg) is a carbon-nanotube-enhanced thermal interface material built for high-power, long-runtime applications. The carbon + silicone formulation delivers thermal conductivity above 5.15W/mK, thermal impedance below 0.004 °C·in²/W and excellent dielectric performance (>10,000V), making it a stable choice for the demanding thermal profile of modern ASIC hashboards and high-density power electronics.
The 1kg industrial bulk pack is sized for ASIC repair centers, mining farms, refurbishment lines and electronics manufacturers that go through thermal compound at scale. Compared to small consumer syringes, the 1kg format brings down the per-application cost dramatically while delivering consistent batch-to-batch thermal performance across the entire production run.
HY880 is engineered to resist drying, cracking and pump-out over time, holding its paste structure through repeated thermal cycling — the failure mode that drives so many "boards getting hot again" returns six months after a previous repaste. The wide temperature tolerance (-30°C to 150°C moment bearing) covers everything from cold-start mining sheds to high-ambient summer farms.
Specifications
| Parameter | Value |
|---|---|
| Model | HY880 |
| Condition | New |
| Net weight | 1000g (1kg) |
| Color | Grey |
| Thermal conductivity | > 5.15W/mK |
| Thermal impedance | < 0.004 °C·in²/W |
| Electrical insulation | > 10,000V |
| Specific gravity | > 2.79 g/cm³ |
| Thixotropic index | 320 ± 10 (1/10 mm) |
| Operating temperature | -20°C to 130°C |
| Moment bearing temperature | -30°C to 150°C |
| Composition | Silicone 10% / Carbon nanotube blend 45% / Metal oxide 45% |
| Compliance | RoHS |
| Application thickness | 0.13-0.15mm recommended |
Compatibility
HY880 is a general-purpose high-conductivity thermal grease — not tied to a single miner model. It is the right choice for the chip-to-heatsink interface on ASIC hashboards (Antminer, Whatsminer, Avalon, Iceriver), control board PMIC and VRM cooling, PSU MOSFET-to-heatsink contact, and any CPU / GPU / SSD / industrial power electronics that need a stable, high-conductivity interface.
Where HY880 fits in fleet repair
Repair shops typically work through HY880 1kg packs across multiple workflows in parallel: hashboard refurbishment (full chip array repaste after ultrasonic clean), PSU rework (MOSFET and rectifier heatsink interface), and preventive maintenance rotations on farm sites. The bulk format lets technicians dispense per-board with a syringe or spatula without rationing the supply across a job ticket queue.
Common failure symptoms that point to a repaste
- Hashboard chip temps rising over the last weeks of operation
- Dried, cracked or pulverised grease on disassembled heatsinks
- Hot spots on a thermal camera at the chip-heatsink junction
- Miner throttling on temperature error before reaching rated hashrate
- VRM or PMIC overtemperature shutdowns on control boards
- PSU shutdowns under load tied to MOSFET heatsink interface degradation
Frequently asked questions
How many hashboards does a 1kg pack cover?
Coverage depends on hashboard size and recommended bead thickness (0.13-0.15mm). As a planning figure, a 1kg pack covers a high volume of repaste cycles across mixed Antminer / Whatsminer fleets — contact us with your specific board mix and we will share a realistic per-board estimate.
Is HY880 electrically conductive?
No — HY880 carries an electrical insulation rating above 10,000V. It is safe to use on hashboards where chip pads and surrounding traces could be bridged by a conductive paste.
What's the difference between HY880 grease and HY268 putty?
HY880 is a high-conductivity grease for tight, flat chip-to-heatsink contact (>5.15W/mK). HY268 is a putty (>8.0W/mK) for bridging measurable gaps where grease would squeeze out. Most ASIC chip arrays use grease; gap-fill scenarios use putty.
How long is the recommended application thickness?
0.13-0.15mm is the recommended bead thickness for optimal thermal coupling. Apply, mount the heatsink, and avoid removing once installed to preserve the contact layer.
Are bulk export shipping options available?
Yes — we ship 1kg packs in volume with documentation for B2B importers, distributors and repair centers. Contact us with the destination country and unit count for a quote.
Related products
- HY883 Grey Thermal Grease 1kg for ASIC Mining
- HY880 Thermal Grease 30g Syringe — Bench-Use Pack
- G18 Hashboard Thermal Paste 1kg 5W for Antminer / Whatsminer / Avalon
- Dowsil TC3080 8W Blue Thermal Gel 1kg for ASIC Hashboards
- HY268 Thermal Putty 8.0W/mK Cartridge for ASIC Gap Filling
Contact contact@lys-sz.com for volume pricing or compatibility questions. Worldwide shipping from our Shenzhen warehouses. DDP available for US and EU customers.
Buying in bulk for a mining farm or repair shop?
Get dedicated B2B pricing on this part and across our full catalog — quote response within 24 hours, payment by T/T USD bank wire, and DDP delivery available for US & EU customers (and other lanes on request).
