Description

Since silica gel is non-toxic, odorless, and non-corrosive, it provides premium large volume desiccant dryers with lower energy costs. Compared to other desiccants, it has very stable thermal and chemical characteristics. This choice of desiccant is typically white and referred to as non-indicating. Once the gel adsorbs the moisture, it will remain unchanged physically. For gel that is self-indicating, an additive is added to the basic gel so that it change color upon the adsorption of water. A self-indicating silica gel allows for a visual indication of the level of activity that is taking place.

Which Size Sachet to Use?

• Silica gel sachet is always more effective in an enclosed environment. A physical barrier will discourage water vapour from continually entering such an environment, leaving the finite volume enclosed to be protected by the silica gel.
• A general rule of thumb in a 'hermetically sealed' environment, is that 5 grams of silica gel are required per cubic foot of enclosed volume (or 170 grams per cubic meter). It is often prudent to err on the side of caution and use the nearest standard size sachet over the amount of silica gel that is theoretically required. For large volumes, using a few well spaced smaller sachets will reduce humidity levels faster than if using a single large sachet.
• Often, environments cannot be considered 'hermetically sealed', there will be a number of factors which will increase the amount of silica gel that is needed.
• Applications of Silica Gel sachets:
• Usually 5 grams of silica gel are required per cubic foot of enclosed volume (or 170 grams per cubic meter). For large volumes, using a few well, spaced smaller sachets will reduce humidity levels faster than if using a single large sachet. Often, environments cannot be considered 'hermetically sealed', there will be a number of factors which will increase the amount of silica gel that is needed.
• Large silica gel sachets (1 kg. to 5 kg.) can prevent moisture damage to items in transit in packing crates and shipping containers, large machinery and enclosed vessels such as tanks or pipes.