• Thermal Warmers for Heat Sensitive Projects!

    $5.00 $3.00

    New reusable SolarColorDust Thermal Warmers are perfect for demonstrating color changing effects with our Thermal Dust and Liquid Crystal!   Flexing a catalyst disc in the hand warmer causes the liquid in the pouch to crystalize, generating heat. To recharge, simply place in boiling water to melt the crystals back into a stable liquid.