📦 Como escolher a melhor pasta térmica: guia de compra completo

Sarah Chen
Sarah Chen Analista de produtos sênior
9 min read Updated December 21, 2026
💡 Quick Answer

Complete thermal paste buying guide. Learn what features matter, compare top products, and find the best thermal paste for your budget.

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Table of Contents

Thermal Paste: Types, Application, and CPU Cooling Performance

Thermal paste transfers heat between CPU and cooler for efficient cooling. Understanding thermal compound options helps select appropriate products for various builds.

Paste Importance

Fills microscopic gaps.
Essential for heat transfer.
Without it, CPU overheats.
Critical component.

Types of Compounds

Metal-based: highest performance.
Ceramic: safe, good performance.
Carbon: balanced option.
Silicone: budget, lower performance.

Metal-Based Caution

Contains metal particles.
Electrically conductive risk.
Best performance.
Careful application required.

Ceramic Advantages

Non-conductive.
Safe around components.
Good thermal performance.
Popular choice.

Application Methods

Pea method: center dot.
X method: corners.
Line method: rectangle chips.
Spreading: even coating.

Amount Needed

Small amount effective.
Pea-sized typical.
Too much can insulate.
Thin layer goal.

Longevity

Quality paste lasts years.
Some dry out faster.
Reapply during maintenance.
Check temperatures.

Arctic MX-4: reliable, safe.
Noctua NT-H1: premium.
Thermal Grizzly: enthusiast.
Arctic Silver 5: classic.

Cleaning Old Paste

Isopropyl alcohol (90%+).
Lint-free cloth.
Remove all residue.
Clean before reapply.

Practical Recommendations

For most builds, quality ceramic paste ($5-15) provides excellent cooling.
Non-conductive types safer for beginners.
Pea-sized application in center works well.
Clean old paste thoroughly before reapplying.

Frequently Asked Questions

O que devo procurar ao comprar pasta térmica?

Os principais fatores incluem qualidade de construção, avaliações de usuários e custo-benefício. Opções com melhor classificação, como o Arctic Arctic MX-4 (incl. Spatula (4,8★ de 69.675 avaliações) demonstra como é a qualidade nesta categoria.

Quanto custa tipicamente a pasta térmica?

Os preços variam de US$ 5 a US$ 120, com a maioria das opções de qualidade em torno de US$ 41. As opções de orçamento abaixo de US$ 8 funcionam para uso ocasional, enquanto os modelos Premium acima de US$ 62 oferecem melhor durabilidade e recursos.

Qual pasta térmica é mais popular agora?

O Arctic MX-4 (incl. Atualmente, o Spatula é o mais bem avaliado com 4,8★ de 69.675 avaliações verificadas. Verifique nossa comparação completa em /best/thermal-paste para todas as principais escolhas.

⚖️ Quick Comparison

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