Drykeeper Moisture absorbing sheet

Drykeeper is a non-halogen and environmentally friendly moisture absorbing sheet made by blendingsynthetic rubber with super absorbent polymer. Drykeeper absorbs a much larger amount of water than silica gel, which is a common desiccant. Unlike pellets and powders, Drykeeper is a thin sheet wrappedin non-woven fabric. It does not take up much space and is extremely easy to handle.

Mechanism

Hygroscopicity is determined by affinity with water, osmotic pressure, and cross-link density. When thewater-absorbing polymer in Drykeeper contacts water, water is drawn into the polymer by the action ofthe ionic groups (that are hydrophilic and easily ionized). The drawing force is the osmotic pressure.*

The water-absorbing polymer has a three-dimensional network structure and is stabilized in a gel state bythe action of rubber elasticity. When the amount of moisture in the surrounding environment decreases,the osmotic pressure expels the drawn-in water to the outside.

Note*: Osmotic pressure is the force that causes water to move from the low-density liquid to thehigh-density liquid between two liquids separated by a cell membrane.

Features

Superior absorption performance
Absorbs moisture without any saturation, even in high humidity.

Benefits

Can be used over a long period of time

Drykeeper continues to dehumidify over a long period of time thanks to its humidityabsorption/release function.
Water absorption capacity

Note: Products from 2 to 5 years old were tested by the maker. Products from 7 to 8 years old were collected from customers.

Excellent performance even at sub-zero temperatures

Drykeeper does not harden, even if absorbed moisture freezes in a sub-zero temperatureenvironment.

Environmentally friendly

An environmentally friendly product that does not contain environmentally hazardous substances.
Humidity variations when set in a small distribution panel

Long effective operating life

Note: Products from 2 to 5 years old were tested by the manufacturer. Products from 7 to 8 years old werecollected from customers.