Gelid GC-4 Extreme Thermal Paste
- Model:
- Gelid GC-4 Extreme Thermal Paste
- Electrical Conductivity:
- Non-Conductive
- Recommended Use:
- High-end CPU/GPU
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Manufacturer: Gelid Solutions Last updated: September 15, 2026
Gelid GC-4 Extreme Thermal Paste (Synthetic/Non-Conductive/Wide-Temp-Range Compound) Review
Gelid GC-4 Extreme Thermal Paste is a synthetic, non-conductive compound rated for -30C to 150C operation, sold in 1g, 3.5g, and 10g tubes for CPU, GPU, and chipset use.
Gelid doesn't publish a W/mK number for this one, which is unusual for the line, so treat the "extreme" branding as a claim about temperature range and no-bleed stability rather than a documented conductivity win over GC-Extreme.
Thermal Performance and Conductivity
Gelid markets GC-4 for "professional and extreme users" but does not publish a thermal conductivity figure in W/mK on the product page or datasheet excerpt we could access, so we're not listing one rather than guessing.
Compound Type and Composition
A synthetic compound built around an enhanced micron-particle thermal filler, non-electrically conductive and non-curing.
Application and Consistency
At 1,000 Poise (about 100,000 cP) it's on the thinner side for a Gelid paste, and comes with an applicator across all three size options.
Operating Range
Rated from -30C to 150C, a wider published range than most pastes in this catalog bother to state.
Comparison to Sibling Products
Without a published conductivity number, GC-4 is hard to rank directly against GC-Extreme (8.5 W/mK) or GC-Pro (7 W/mK), if that number matters to you, those two give you something concrete to compare against.
Specifications
Identity and form
| Brand | Gelid Solutions |
|---|---|
| Model | GC-4, TC-GC-04-A (1g), TC-GC-04-B (3.5g), TC-GC-04-C (10g) |
Application
| Viscosity | 1000 Pa-s |
|---|---|
| Applicator Included | Yes |
Cure and durability
| Pump-Out Resistance | High |
|---|
Quantity, volume versus weight
| Density | 2.30 g/cm3 |
|---|
| Electrical Conductivity | Insulating |
|---|---|
| Package Size | 1g, 3.5g, and 10g tubes |
| Recommended Use | Marketed by Gelid for professional and extreme users |
| Safety Notes | Non-curing formula, marketed as "No Bleeding" |
| Material | Synthetic thermal interface material with micron-particle synthetic thermal filler (manufacturer does not publish a W/mK figure) |
| Operating Temperature | -30C to 150C |
| Paste Segment | Standard Paste |
| Curing | Non-Curing |
| Min Operating Temp | -30 C |
| Max Operating Temp | 150 C |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Builds where the wider -30C to 150C rated range or the three size options (1g/3.5g/10g) matter more than a headline W/mK figure.
Not for
- Buyers who want to compare pastes strictly by published thermal conductivity, Gelid doesn't publish one for this SKU.
FAQs
What are the key specifications of the Gelid GC-4 Extreme Thermal Paste (Synthetic/Non-Conductive/Wide-Temp-Range Compound)?
The Gelid GC-4 Extreme Thermal Paste (Synthetic/Non-Conductive/Wide-Temp-Range Compound) is a thermal paste from Gelid Solutions. Key specs: Form Paste, Material Synthetic thermal interface material with micron-particle synthetic thermal filler (manufacturer does not publish a W/mK figure), Electrical Conductivity Non-Conductive, Recommended Use Marketed by Gelid for professional and extreme users, Package Size 1g, 3.5g, and 10g tubes.
Who is the Gelid GC-4 Extreme Thermal Paste (Synthetic/Non-Conductive/Wide-Temp-Range Compound) best suited to?
It suits builds where the wider -30c to 150c rated range or the three size options (1g/3.5g/10g) matter more than a headline w/mk figure..
What are the drawbacks of the Gelid GC-4 Extreme Thermal Paste (Synthetic/Non-Conductive/Wide-Temp-Range Compound)?
It is a poor fit for buyers who want to compare pastes strictly by published thermal conductivity, gelid doesn't publish one for this sku..
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