We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small white syringe of thermal paste, 5 g tube with grey paste visible at tip

Prolimatech

Prolimatech PRO-PK1-5G thermal paste 5 g

SKU CH-7NRS-9AE9W MPN PRO-PK1-5G

Premium thermal compound with aluminium and zinc oxide for reliable CPU-to-heatsink heat transfer

  • DetailsWeight: 5 Gram Material Specification: Al: 60 to 85(wt%) ZnO
  • Key featuresExcellent long-term stability Non-electronically conductive
  • Excellent long-term stability with low dry-out formula
  • Non-electrically conductive composition prevents short-circuit damage
  • Non-corrosive aluminium-zinc oxide blend protects metal surfaces
  • Easy application with minimal waste using 5 gram syringe
  • Reliable heat transfer maintained through antioxidant additive

Premium thermal compound for CPUs and GPUs

Prolimatech PK-1 is a non-conductive, non-corrosive thermal paste designed for processor and graphics-card coolers. The 5 g syringe provides enough material for multiple applications on desktop or laptop hardware. Its aluminium and zinc-oxide formula resists drying out, maintaining consistent heat transfer over long periods.

Thermals, noise and power draw

The compound contains 60–85 wt% aluminium, 15–25 wt% zinc oxide, 12–20 wt% oil and 0.5–2 wt% antioxidant for stable thermal conductivity. Low dry-out characteristics keep interface resistance steady, so cooler fans do not need to spin faster to compensate. Being electrically non-conductive, it poses no short-circuit risk if it contacts PCB traces or pins.

Build integration and practical notes

The paste spreads easily with a spatula or the cooler base itself, reducing waste during installation. Annual reapplication is recommended by the manufacturer to sustain peak performance. The 5 g volume suits builders who service several systems, while the non-corrosive nature protects copper, aluminium and nickel-plated cold plates alike.

How it compares

Measured against everything we stock in Thermal Paste, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 75% of the 498 comparable items (median $12.99).

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameProlimatech
Model namePRO-PK1-5G
Size & build
Shipping weight0.02 kg
Package size174 × 25 × 17 mm

Questions about this item

How do I apply the 5 g PK-1 paste without wasting it?

Squeeze a small drop onto the centre of the CPU heat-spreader; the non-conductive aluminium-zinc oxide formula spreads thinly under cooler pressure so you use less than traditional greases.

When should I plan to reapply PK-1 thermal compound?

The manufacturer recommends yearly reapplication to maintain top condition because the oil carrier can slowly migrate even with the low-dry-out antioxidant blend.

What limits sustained heat transfer before the paste itself degrades?

The 12–20 wt% oil carrier is the first element to migrate during long high-temperature cycles, gradually reducing the compound's ability to fill microscopic gaps between CPU and heatsink.

More in Thermal Paste

Similar items