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Desiccants


Home/Consumer solutions for moisture sensitive products

Many homeowners and individual consumers have situations in which protecting products from the negative effects of moisture is important. Desiccant bags and packets are primarily an industrial product. Over two million packages ranging in size from .25gm up to 5lbs. are produced in the United States EACH DAY.

We have provided the following information to help you to choose products, which are appropriate for a wide range of situations. This page covers the following situations:

  • Cameras, film and electronic equipment.
  • Plastic storage containers. (Rubbermaid, Sterilite etc.)
  • Collectibles and valuables.
  • Archival storage (newspapers, autographs, paper and cloth items)

If you think we missed a "situation", we want to know about it. Please email us.

The table below provides you with an understanding of how much desiccant is required to dry a specific volume. This table was originally developed by the United States military and its engineering personnel in order to guarantee the quality of products kept in long-term storage.

As a consumer or home user, you must consider the integrity of your package or situation. If you are dealing with a cash box or a home safe, that is a tight sealed environment. If you have a plastic clothing storage container and you want to eliminate mold or mildew you will need to double or even possibly triple the quantity of absorbent required and should use a humidity indicator card as an additional precaution, because the containers are not as well sealed.

* REQUIREMENT CHART

Container Size Required Amount in Grams
  Silica Gel Activated Carbon Silica Gel/Carbon 50/50
30 Cubic CM 1/8 1/4 1/4
40 Cubic CM 1/4 1/4 1/4
50 Cubic CM 1/2 1/4 1/4
60 Cubic CM 1/2 1/2 1/2
75 Cubic CM 3/4 1/2 1/2
100 Cubic CM 1 1 1
150 Cubic CM 1 1 1
200 Cubic CM 2 2 2
300 Cubic CM 2 2 2
400 Cubic CM 3 2 3
500 Cubic CM 3 2 3
750 Cubic CM 5 2 5
950 Cubic CM 5 5 5
1.1 Gallon
4164 Cubic CM
5 5 5
2.1 Gallons
7949 Cubic CM
10 10 10
3.1 Gallons
11735 Cubic CM
14 14 14

*This chart does not consider the materials being used for packing, etc., but it is a start and will give you an idea of what size desiccant packets to use and how much desiccant to buy for your purpose.

PLASTIC CLOTHING CONTAINERS:
The key to keeping your belongings or products safe from mold, mildew, corrosion or any other problem in a plastic storage container requires two considerations. First how long do you plan to keep the container in storage? Saving clothing over the summer or winter at a vacation home or in a storage unit will only require desiccant packages at double the rate of the chart above. Example: a Rubber maid plastic container with a snap fit lid is x y z. If it is filled with clothing and other objects it will have no more than cubic inches necessary to dehydrate. Using two four ounce bag from the home storage kit will work for each container. Utilizing the humidity indicating cards provided in the appropriate kit (Catalog #HSK02) will provide you with a visual indication of the relative humidity in the container even if it is on a storage shelf. Almost all paper and metal products can be safely stored if the humidity is kept at or below 30%.

HSK01 (10 4oz. Desiccant bags, vacuum-sealed in a barrier pouch)
Kits x Price = $8.80 each.
HSK02 same as HSK01 with a package of 5 individual 10-60% humidity indicator cards enclosed. _____________Kits x $11.95.

SAFES:
Safes are extremely easy and simple to care for. One Dri-Box will dehydrate 2.5 to 3 cubic ft. of internal volume.

Cameras, photographic and electronic equipment etc.
The key to maintaining electronic equipment in good shape is to have a strong moisture barrier like the foil ZipSeal bag and the Dri-Box working together.

Photographs are a different situation. This picture shows are photographs which are kept in a humid environment will stick together and become permanently damaged. Our aluminium foil ZipSeal bags and small moisture absorbing packets will solve this problem.

PHSK01 (Photo storage kit)
10 foil ZipSeal bags (approx 8"x8") and 10 DryPax with color change indicator. $11.95

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