Key Features 

• 99.9% Pure Micronized Silver — Maximizes particle-to-particle contact for superior heat transfer
• 88%+ Thermally Conductive Filler — Silver + zinc oxide, aluminum oxide, and boron nitride for enhanced conductivity
• Triple-Phase Viscosity — Thins on first use to fill surface gaps, stabilizes over 50–200 hours
• Not Electrically Conductive — Safe for CPU and GPU applications
• No Silicone — Polysynthetic Oil Base — Will not separate, run, or migrate over time
• -50°C to 180°C Peak Range — Stable across all desktop and workstation thermal conditions
• 12g Large Tube | 1, 2, 5, and 10-Piece Packs — Covers 50+ small CPU cores per tube — ideal for workshops and multi-system builds

Arctic Silver 5 is the reference-standard high-performance thermal compound trusted by enthusiasts and professionals worldwide. The 12g tube is the large-format version of the iconic AS5 formula — delivering the same 99.9% pure micronized silver compound in a larger syringe designed for workshop use, bulk repasting, or builders who prefer fewer tube changes across multiple systems. Each 12g tube provides significantly more coverage than the standard 3.5g variant, making it a cost-effective choice for anyone regularly working on CPUs, GPUs, or console repasting.

The triple-phase viscosity behavior ensures easy application fresh from the syringe, thin fill during initial heat cycles to maximize surface contact, and stable final consistency after 50–200 hours of use. The polysynthetic oil base contains no silicone and will not separate, bleed, or migrate — maintaining full performance across years of continuous use. RoHS compliant.

Ideal For

• Professional PC Builders & Workshops — 12g tube covers multiple systems without frequent restocking
• CPU Heatsink & Water Cooling — Optimized for high-power CPUs with air coolers or custom water loops
• Overclockers & Enthusiasts — Delivers 3–12°C lower temps vs standard compounds
• GPU & Console Repasting — Non-conductive formula safe for GPU die and sensitive components
• Multi-Pack Workshop Stock — 2, 5, and 10-piece packs for service centers and bulk builders

Variant Options

• 1 Piece (12g) — MPN: AS5-12G
• 2 Pieces (24g total) — MPN: AS5-12G ×2 
• 5 Pieces (60g total) — MPN: AS5-12G ×5
• 10 Pieces (120g total) — MPN: AS5-12G ×10 

Specifications

• Silver Content — 99.9% pure micronized silver
• Filler by Weight — Over 88% thermally conductive
• Particle Size — Less than 0.49 micron
• Peak Temperature Range — -50°C to 180°C
• Long-Term Temperature Range — -50°C to 130°C
• Electrical Conductivity — Not electrically conductive (slightly capacitive)
• Separation/Migration — None — absolute stability
• Compliance — RoHS compliant
• Tube Size — 12g