HYDROGEL products are to be used at temperatures ranging from 25-40 C and humidity up to 90%. Above these values we recommend Flexible PCM.
Hydrogel contains a water-absorbing patented polymer and water (>95%). The Hydrogel provides cooling by evaporation. Hydrogel is located between two layers of fabric. When touching a Hydrogel coolwear product you will feel the hard polymer grains. After contacting with water, the hard polymer grains will turn into a soft gel ; Hydrogel.
Hydrogel products cool for a long period of time. By means of evaporation up to 72 hours. The coolwear also contains the unique and patented 2-in-1 cooling principle. Next to evaporative cooling Hydrogel can be turned into ice.
When additional cooling is required you can place the activated (after contacting with water) Hydrogel coolwear products in the fridge. This provides 10-20 minutes of extra intense cooling. After 10-20 minutes the water will be melted and the Hydrogel products will continue to cool by evaporation. For ice-cooling make sure the fabrics should be dry first before putting the product into a a freezer.