Desiccant

Desiccant Packaging Range

Desiccants are perfect for protecting packaging and enclosure items that are susceptible to damage from moisture like electronic components, computer chips, loaded & vacuum packed JEDEC trays or any items that require moisture protection.

Antistat desiccants are available in a variety of types such as Silica Gel Packets, Activated Clay and Molecular Sieve. The synthetic and natural materials have an absorption performance suited to a wide range of product types, environments and humidity levels.

Our Humidity Indicator Cards (HIC) allow for a visual check of the humidity levels inside enclosures or packed items. This also gives a fast evaluation of the desiccants performance.

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ESD expert
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+ 1 512.243.5762
(lines open 9am – 5pm CST Mon-Fri)

Silica Gel

Antistat Silica gel is a synthetically produced form of silicon dioxide (SiO2) in the form of hard irregular granules or beads. The microporous structure of interlocking cavities gives a very high surface area making silica gel a high-capacity desiccant. Water molecules adhere to the gels surface asit exhibits a lower vapor pressure than the surrounding air. There is no chemical reaction, by-products or side effects produced by silica gel and water vapor is absorbed into its internal pores.

We supply silica gel in the form of indicating and non-indicating, the non-indicating gel will remain physically unchanged as a result of moisture absorption whereas indicating silica gel gives a visual indication of the absorption process/level.

Non-indicating

A narrow pored granular form of amorphous silica free from extraneous matter. The irregular granules are a white/translucent colour.
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Silica gel

Self Indicating Desiccant Range

A narrow pored form of amorphous silica impregnated with an organic indicator (methyl violet).
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Self indicating silica gel

Silica Gel Bags – Nato Standard

Our range of desiccant bags conform to NATO regulations and provide an economic way of protecting against moisture damage.
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Nato sieve bag

Clay Desiccant Bags (10g & 25g )

Bentonite clay is a naturally occurring mineral as opposed to a chemically synthesized absorbent. Therefore it is more economical than silica gel or molecular sieves. The performance curve exceeds both industry standards, and the silica gel performance curve for these same specifications.

At 20% RH, the activated clay bags will absorb 50% more moisture than required by industry standards, whereas silica gel will only absorb 3.5% more moisture than industry standards require. The packaging is sealed inside a waterproof and moisture vapour-proof container with the inclusion of a desiccant to prevent rust, mildew or corrosion damage. In Method II packaging, the package is maintained at a safe humidity below 40% RH during the normal storage period of 18 months to 2 years.

Activated Clay Bags

Activated clay desiccant has approximately 35% lower adsorption capacity than silica gel. The lower cost of clay desiccant balances the overall cost comparison between silica and clay.
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Clay Bags 10g

A 10g bag is ideal for storing inside smaller moisture barrier bags that require a moisture free environment when transported.
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Clay Bags 25g

Antistat clay bags exceed the moisture vapor absorption of silica gel preventing corrosion and moisture damage.
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Molecular Sieve Bag

Synthetically produced molecular sieves target specific water molecules based on their size and polarity. Molecular sieves work to adsorb water molecules and other contaminants from liquids and gases down to very low levels.

Molecular sieve desiccant bags are the perfect solution to packaging and equipment applications that require low relative humidity levels. Standard bag capacities range from 3g right up to 500g.

Molecular sieves desiccant is synthetically produced from alumina silicates with an absorption capacity of approximately 20% (by weight) at a relative humidity of 50% at 25°C.

Main advantages of using molecular sieves desiccant are:

  • High absorption efficiency at high temperatures
  • Ability to maintain a low relative humidity
  • Rapid adsorption performance

Typical applications include, general packaging, electrical/electronic enclosures, electro-optical & optical equipment.

Additionally of a colour change indicator card will provide a visual indication of the relative humidity level within the packaging or enclosure. This provides an important check to ensure that the desiccant is still active.

We can also supply molecular sieve bags conforming to Explosive Storage Compatibility Groups Specification HR904.

Contact an
ESD expert
Call
+1 512-243-5762
(Lines open 9am – 5pm CST Mon-Fri)

Speak to our team about desiccants

We have a wide range of desiccants, one of our friendly staff are on hand to talk through your requirements.

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