Calcium Oxide Powder

Hygroscope-P is Calcium Oxide in powder form, with a purity of 95%. The function of Hygroscope-P is to absorb moisture and eliminate moisture-related problems in plastics and rubber applications. It can be used as a desiccant in PE/PP masterbatches, rubber compounds and PVC plastisols. Calcium Oxide forms Calcium Hydroxide once it absorbs water.

Applications for Calcium Oxide

• Desiccant masterbatch production
• Filler masterbatch to extend the shelf life of the product and to absorb moisture in raw materials
• Plastics recycling
• Pressureless, continuous curing systems such as microwave, LCM, hot air and fluid beds
• Wastewater treatment
• Low pressure curing in the cable industry
• Construction chemicals where moisture must be eliminated

Properties

Food Contact Compliance

According to FDA 21 CFR 184.1210 regulation, Calcium Oxide is categorized as a GRAS (Generally Recognized as Safe) product; therefore, Calcium Oxide can be used in plastics that may be in contact with food.

According to EU 10/2011 regulation, Calcium Oxide is an authorised food additive respectively by Regulation (EC) No 1333/2008 or Regulation (EC) No 1334/2008. Therefore, Calcium Oxide can be used as a food additive and also in plastics contacting with food.

Desiccant Masterbatch

Calcium Oxide is the main raw material in desiccant masterbatch production. Desiccant masterbatch is a plastic dehumidifier for recycled materials. It is a functional masterbatch designed to absorb moisture in plastic applications in order to eliminate moisture-related problems.

Recommended Formula for Desiccant Masterbatch

REACH Registration

Hygroscope-P/UP products are REACH registered.