Tips For Reshaping ThermApparel PCM Cooling Packs

Got Cooling Packs with a funny shape? No big deal—it’s a quick fix!

ThermApparel Cooling Packs are powered by Phase Change Material (PCM), a special technology that freezes and melts at 70°F/21˚C—the perfect temperature to keep you cool without feeling too cold. If your packs freeze in odd shapes, it’s just the PCM doing its job. Here’s how to get them flat and ready for action.

Step-by-Step: Flatten Your Cooling Packs

1.  Melt Them: Place your packs in a bowl of warm or hot water—just hot enough to comfortably touch with your hands. There is no need for boiling water, which will damage your cooling pack, so keep it safe and avoid burning yourself!

2.  Refreeze Them Flat: Lay the melted Cooling Packs flat on a cold surface to refreeze. Choose a method that suits you:

    • Ice Water: 30 minutes.
    • Fridge: 45 minutes.
    • Freezer: 60 minutes.
    • Cold Room: Overnight (on a hard, flat surface in a room under 70°F/21°C).
    • Snow (if available): 5–10 minutes.

Once refrozen flat, your Cooling Packs will fit perfectly into your UnderCool 3, RallyWrapUltraCool, CoolSleeve, or Headband, delivering optimal cooling and comfort.

Why Don’t My Cooling Packs Melt?

If you’ve noticed your ThermApparel PCM Cooling Packs aren’t melting as expected, here’s the science behind it:

    • ThermApparel PCM Freezes at 70°F/21°C: These Cooling Packs naturally stay solid in any environment at or below 70°F/21°C, even if they’re not in use.

    • To Melt, They Need Heat: PCM Cooling Packs only start absorbing heat and melting when they come into contact with something warmer than 70°F/21°C—like your body, warm water, or a heated surface.

    • Room Temperature Matters: If you leave your Cooling Packs in a room cooler than 70°F/21°C, they’ll stay frozen until exposed to higher temperatures.

The Magic of 70°F/21˚C Cooling

ThermApparel’s PCM Cooling Packs are designed to freeze and melt at 70°F/21˚C for a reason:

    • No Condensation: They stay dry, unlike ice packs, keeping your gear and clothing comfortable.

    • Perfect Cooling Temperature: Provides a refreshing, consistent cooling experience without being too cold.

    • Versatile and Easy to Recharge: Freeze them in your fridge, freezer, or even ice water—no special equipment required!

Why Flat ThermApparel PCM Cooling Packs Matter

Flat Cooling Packs ensure full contact with your body, optimizing cooling performance. A quick reshaping session can make all the difference in your comfort.

Need Extra Cooling Packs?

We've got you covered with extra Cooling Packs for all your ThermApparel Gear. 


Got Questions? Let’s Chat!

If you’re still unsure or have tips to share, we’d love to hear from you! Reach out to us anytime:

Live Chat: www.thermapparel.com

Email: contact.us@thermapparel.com

Phone: 855-232-7233

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About ThermApparel

We create lightweight, invisible cooling solutions powered by advanced PCM technology to keep you cool, dry, and comfortable in any heat. From costumes to outdoor adventures, our products are here to help you beat the heat in style.

#thermapparel #PCMcooling #undercool #coolinggear #staycool

It's not about feeling cold. It's about feeling good.