Sorb-It^® packaged silica gel desiccant is a highly porous amorphous silicon dioxide. It binds water molecules in its random intersecting channels which have various diameters. The material remains dry and free flowing, even after fully saturated with water vapor.

Desiccant City also stocks blue indicating silica gel packets that visually show the saturation state of the silica gel.

Desiccant Bags Profile (PDF)

Sorb-It packaged silica gel desiccant is made from amorphous silicate.  It is a hard, translucent material with an extremely high capacity for moisture at temperatures below 75°F and at humidity levels above 40% RH.  Sorb-It is designed to control moisture levels within packaged products.  The function of Sorb-It when controlling moisture is like that of a tiny sponge with millions of microscopic pores.  Under very low humidity conditions, a small amount of water vapor will be adsorbed in the smallest pores.  As humidity increases, the large pores will begin to fill.  Unlike a sponge, however, Sorb-It remains dry and free-flowing, even at maximum adsorption capacity.

Desiccant Performance Data (PDF)

• Metal and machine parts
• Industrial equipment
• Pharmaceuticals
• Electronic components packaging
• Military instruments and armaments
• Aerospace
• Packaging
• Motors
• Circuit boards
• Relays and communication devices
• Oceanographic devices
• Documents and paper storage
• Instruments
• Photographic equipment and film

• Foodstuffs
• Batteries
• Vitamins
• Pet foods
• Optical devices
• Metal powders
• Powdered or beaded glass
• Bulk powdered chemicals
• Safes
• Medical equipment
• Diagnostics
• Museum storage
• Leather products
• Textiles

Tyvek^® Packets   Tyvek is made from a spunbonded olefin.  Tyvek packets are made from high density polyethylene fibers, making them extremely tear-resistant.  In addition, Tyvek is lightweight, flexible, smooth, low-linting, and is resistant to water, chemical abrasion, and aging.

Sorb-It in Tyvek packets won't promote corrosion and contains no sulfur.  Tyvek packets containing Sorb-It meet the requirements of the U.S. Food & Drug Administration for direct contact with food and pharmaceuticals.  Sorb-It in Tyvek packets is also Class 100 Clean Room compatible.

GDTII Packets  This packet material is the best value for most small packaging applications.  GDTII is tear-resistant , flexible, low-linting, allows a high adsorption rate, and features good seal strength.  Sorb-It in GDTII packets is also approved by the U.S. Food & Drug Administration for direct contact with food and pharmaceuticals.

Sorb-It is available in either unit or gram sizes.

Sorb-It in unit sizes range from 1/6 unit to 16 unit bags.  (A unit of Sorb-It almost equals 1 ounce.)  For more information about how many units of desiccant are required to protect a given application, please refer to the Desiccant Requirements Chart: Unit Sizes or call us at 1-800-995-5590.

Sorb-It in gram size packets are typically used to protect small enclosures; they range in size from 1/4 gram to 10 grams.  Sorb-It is also available in canisters from 1/2 gram to 3 grams.  For more information about Sorb-It in packets or canisters, please refer to the Desiccant Requirements Chart: Gram Sizes or call us at 1-800-995-5590.