Silica gel is a desiccant, or drying agent, that was patented in 1919 by Walter A. Patrick at John Hopkins University in Baltimore Maryland. Silica Gel is a dry solid, not a slick or wet substance as the name might suggest. Inside the white packets are beads of this dry solid material that remain dry to the touch even when fully saturated. The Silica Gel beads absorb moisture through the porous packet material.
The Silica Gel, made from sodium silicate, is a highly porous substance that can absorb up to 40% of its own weight, which makes this the highest absorption capacity of any commercially used Desiccant. Once saturated, you can drive the moisture off and reuse silica gel by heating it above 300 degrees F (150 C).Silica Gel is a drying and dehumidifying agent that drinks up moisture to effectively prevent rust, corrosion, mold, mildew, spoilage, fogging and condensation.
Most damage to stored valuables and supplies is caused by humidity trapped within the enclosed storage unit itself. Humidity in the space turns into condensation which can often cause irreparable damage. Silica gel is a form of the naturally occurring mineral silicon dioxide, better known in its granular form as sand or in crystals as quartz. Silica gel products will help to eliminate rust, corrosion, oxidation and tarnish on tools,. In addition, silica gel can protect seasonal storage, collectibles, clothing, leather and more from mildew, fungus, mold and odor.
Silica gel is derived from sand and ONLY absorbs moisture. If not enough is used then there is still moisture present and if the sachets are not kept perfectly dry before use they will be ineffective when packed with the shoes. There is also a clear health danger if the silica gel is ingested by workers or consumers.
Beware of silica sachets that also contain toxic substances!
Tags for Silica Gel: Silica Gel White, Silica Gel Packet, Silica Gel beads, Silica Gel powder, Silica Gel blue, Silica Gel orange, Mix Silica Gel