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Brand New Arctic MX-7 is Brick-Hard Out of the Tube. Had to Use a Heat Gun to Apply. Is This Normal?
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Brand New Arctic MX-7 is Brick-Hard Out of the Tube. Had to Use a Heat Gun to Apply. Is This Normal?

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Hi everyone,

I recently purchased a brand new tube of Arctic MX-7 from a reputable local distributor to repaste my Steam Deck.

When I tried to pump it out, the paste was literally as hard as a brick. It came out clumpy, dry, and cracked like clay. I absolutely couldn't squeeze it out with normal hand pressure.

Since I'm experienced with hardware mods, I decided to use my heat gun to gently warm up the tube. It finally softened up enough to apply a cross (X) pattern directly onto the direct-die silicon.

The results:

After putting everything back together and running games at full load (Cyberpunk 2077 / Elden Ring), the temps look pretty decent: around 80°C on both CPU and GPU, with slightly higher and more stable clock speeds than my previous paste.

My questions:

  1. Is Arctic MX-7 supposed to be this incredibly stiff and solid at room temperature? I know the official spec says it's "Thick", but needing a heat gun just to squeeze it out seems extreme.

  2. Did I risk damaging or altering the compound's properties by heat-gunning the tube?

  3. Should I keep it as is, or should I wipe it off and return the tube?

Appreciate any insights from anyone who has used the MX-7!