G19 8W/mK Blue Thermal Gel 1KG – Thermal Paste for Antminer S21 & ASIC Cooling

G19 Blue Thermal Gel 8W/m·K | 1kg Ceramic-Filled Silicone Compound for Antminer S21 and BM1368 ASIC Hashboard Cooling

The G19 Blue Thermal Gel is a high-conductivity 8W/m·K silicone thermal compound engineered for the Antminer S21 and BM1368 ASIC hashboards running at the upper end of their thermal envelope. Fills the micro-gaps between chips and heat sinks, reducing thermal resistance and keeping junction temperatures inside spec under sustained mining load.

Ceramic-filled silicone resin base, blue colour for clean visual application check, 3.2 g/cc density and 100 g/min extrusion rate (90psi, 2.54mm tip) — fast enough for repair-bench volume work, viscous enough to stay where it's placed. UL-94 V0 flame retardancy and ≥2.5kV/mm dielectric strength make it safe for direct application around live ASIC pads. Operating range −60°C to +200°C covers the full duty cycle of modern miners.

When to Use G19 Blue Thermal Gel

• Antminer S21 / S21 Pro thermal grease refresh — aging miners showing thermal throttle, original paste dried out, swap to a fresh 8W/m·K layer.
• Post-BM1368 chip replacement — fresh grease over the reflowed chip area before reseating the heat sink.
• Heat sink swap or upgrade — clean grease layer needed when fitting a new sink onto an existing board.
• High-load farm refurbishment — fleet-wide thermal refresh on S21-class miners under sustained near-thermal-limit duty.
• Bench repair on adjacent ASIC families — same compound works on Whatsminer M50/M60, Iceriver KS, Avalon and other modern ASIC hashboards.

G19 Blue Thermal Gel Specifications

FAQ — G19 Blue Thermal Gel

Q: How much gel do I need per Antminer S21 hashboard?
A: ~15–25g per board depending on coverage technique. The 1kg pack covers 40–60 boards on average — sized for repair shops doing volume work or farm operators refreshing a multi-miner fleet in one session.

Q: Is 8W/m·K worth it over a 6W/m·K compound?
A: For S21-class miners running near their thermal envelope, the extra 2 W/m·K headroom translates to lower junction temperatures and slower long-term degradation. For older / lower-power miners (S19, M30), a 6W/m·K compound is usually sufficient.

Q: Can I apply this directly over the BM1368 chips?
A: Yes — the gel is electrically non-conductive at ≥2.5kV/mm dielectric strength. Safe for direct application over the chip top surface as long as you mask the pads where thermal pads (not paste) are specified.

Q: Bulk pricing for repair shops?
A: Yes — email contact@lys-sz.com with your monthly volume and we'll send case-quantity pricing.

Related products

• HY206 / HY236 6W/m·K Thermal Grease 1kg
• Dowsil 8W Blue Thermal Gel 1kg – ASIC Hashboards
• Whatsminer KL1040 Thermal Grease 1kg (white)
• Antminer S21 Silicone Grease Application Tin Tool

Repair shops and farm operators stocking thermal gel by the case? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.