GP&E America, Inc.

GP&E America, Inc.


Humidity Indicator Cards

Humidity Indication Card (HIC) is a mandatory item used when drying/packaging moisture-sensitive products and the color changes depending on the relative humidity. From cobalt products to eco-friendly humidity instruction cards that do not include heavy metals, it can be customized to customers.

We manufacture/supply various designs from standard card types such as 3 spots and 6 spots to plug and twin types.

Product Type

Type Color change Main component Environmentally friendly
Cobalt Dichloride
Heavy Metal
Regular-HIC Blue - Pink CoCl2
CDF-HIC Blue - Pink CoBr2
CB-HIC Brown – Green Copper
CF-HIC Yellow – Green pH indicator
MF1-HIC Green - Violet Organics