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Desiccants - Desiccant Packs

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Tyvek Desiccants - Full Pallet - 5 Drums per Pallet

Tyvek Desiccants- Full Pallet - 48 Pails per Pallet

Kraft Desiccants - Full Pallet - 5 Drums per Pallet

2 Desi-Pak #200002889 5 x 4.75 Clay Desiccant Packets

Stock#: DS05B

$

334

.75

  / Drum of 800

4 unit Desi-Pak #3809 5 x 6 Kraft Desiccant Packet

Stock#: DS06

$

303

.55

  / Drum of 500

Kraft Desiccants - Full Pallet - 48 Pails per Pallet

1/2 Desi-Pak #3741 3 x 3.5 Clay Desiccant Packets

Stock#: DS03

$

133

.00

  / Pail of 550

1 Clay Desiccant 3 x 4.5 - Desi Pak #3785 - Kraft Paper

Stock#: DS04

$

98

.00

  / Pail of 300

2 Desi-Pak #200002886 3 x 6 1/2 Clay Desiccant Packets

Stock#: DS05

$

79

.45

  / Pail of 150

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Tyvek Desiccant Packs in a Drum

Desiccant packs are used as a dehumidifier to control moisture in contained environments, including pharmaceuticals, medical, diagnostics, food, electronics, and optical industries. Clay Desiccant Packets are made of an aluminosilicate clay compound, a natural mineral that is more economical than silica gel. At 20% relative humidity, Desi Pak will adsorb 50% more moisture than required by Mil-D-3464E, whereas silica gel will only adsorb 3.5% more moisture than required by Mil-D-3464E. The chart under the pricing estimates the number of Desiccant Packets required for moisture protection. Bentonite desiccants are all-natural and absorb moisture in packaging to prevent damaging effects such as corrosion, mold, and degradation. The production of clay desiccants has less impact on the environment as no harsh chemicals are used during production compared to silica gel desiccants. 

Additional Desiccant Pack Information:

How much desiccant do I need?

  • It depends. The amount of desiccant required is usually dependent on the following factors:
  • The volume of air space to be desiccated
  • The nature of the material to be protected
  • The moisture surrounding the package
  • The type of desiccant to be used
  • The length of time for protection
  • The atmospheric conditions (temperature and relative humidity) when/where the product is sealed and during subsequent shipment and storage

 

Desiccant Requirement Formula:

Formula: Units = 0.011 x Bag Area (in.²)
Example: 10" x 10" ClearZip® Bag.
Bag Area: 10" x 10" x 2 sides = 200 in.³
Units Needed: 0.011 x 200 = 2.2 Units

 

What is a desiccant, and what does it do?

A desiccant is a dehumidifying agent which attracts moisture from the atmosphere. It adsorbs and holds particles of water to itself. Desiccant Packets are small sachets of Desiccant clay, aimed at protecting goods from moisture. The three most common types of desiccants are clay, silica gel, and molecular sieve. Desiccant Packets help protect products in a wide range of industries, including pharmaceuticals, nutraceuticals, diagnostics, food, and electronics, from moisture.

 

A desiccant is a substance that removes moisture from the surrounding air. When sealed in an air-tight container, such as a plastic bag, a desiccant pack will produce a low-humidity environment within the poly bag or any sealed container. 

Volume UNITS REQUIRED STOCK #
CU. IN. CU. FT. GAL.
237 0.14 1.1 1/6 DS01
476 0.28 2.1 1/3 DS02
715 0.42 3.2 1/3 DS03
1,429 0.83 6.2 1 DS04
2,857 1.67 12.5 2 DS05
4,286 2.50 18.7 3 DS05
5,714 3.33 25.0 4 DS06
7,143 4.17 31.2 5 DS06
8,571 5.00 37.4 6 DS06
10,000 5.83 43.6 7 DS06
11,423 6.67 50.0 8 DS07
12,857 7.50 56.1 9 DS07
14,286 8.33 62.3 10 DS07
17,143 10.00 74.8 12 DS07
20,000 11.67 87.3 14 DS07
22,857 13.33 99.7 16 DS08
28,571 16.67 125 20 DS08
42,857 25.00 187 30 DS08
57,143 33.33 249 40 DS08
 71,429 41.67 307 50 DS08
 85.714 50.00 367 60 DS08
100,000 58.30 432 70 DS08
114,286 66.67 493 80 DS09

 

Extreme close up of rusty metal nut without desiccant protectionRusty
Extreme close up of metal nut with desiccant protection
Industries that use desiccants Products that are packaged with desiccants
Aerospace Batteries Optical devices
Apparel Bulk powdered chemicals Pet foods
Automotive Cholesterol tests Photographic equipment and film
Communications Circuit boards Powdered or beaded glass
Dental Clothing Pregnancy tests
Diagnostic Documents and paper storage Relays and communication devices
Education Electronic components Safes
Electronics Flour, sugar, grains Shoes
Film Making Glucose tests Semiconductors
Food Packaging Industrial equipment Vitamins
Foodstuffs Instruments  
Industrial Leather products  
Medical Machine Parts  
Military Medical equipment  
Nutraceutical or Bioceutical Metal and machine parts  
Optics Metal powders  
Packaging Military instruments and armaments  
Pet Food Motors  
Pharmaceutical Museum Storage  
Textiles Oceanographic devices  

Composition of SCPP Film Stocks

Film Composition Porosity
Tyvek Spun-bonded polyethylene 50-100 sec
Kraft (X-Crepe) Cross-creped kraft paper 5-25 sec
GDT-2 BT-060E non-woven 65% polyester / 35% polypropylene 5-25 sec
Sewn Bags Non-woven rayon 5-25 sec
MP-20 2 mil polyethylene/0.48 mil polyester clear film N/A

Frequently Asked Questions About Desiccant Packs

Why use desiccants?

Products vulnerable to moisture damage need special protection during storage and transport to remain effective. Desiccant Packets provide a simple, dependable, and economical solution for preventing moisture damage in small, sealed packages. A popular Desiccant Packets configuration in the pharmaceutical industry, Desiccant Packets are also ideal for protecting nutraceuticals, diagnostics, electronics, food, and products from moisture.

What are common uses of desiccants?

  • Protect foods and medicines like popcorn, candy, pills, and vitamins.
  • Protect important documents inside safes and lock boxes.
  • Protect musical and camera equipment, electronics, leather, rubber, copper, etc.
  • For moisture protection of foods, medicines, and exposed electronic components, we recommend white sulfur-free Tyvek Desiccant Packets. Tyvek Desiccants are sold in the same pail and drum sizes as Brown Kraft Desiccants.

What size bags, packets, and canisters are available?

Standard sizes for unit bags are as follows: 1/6, 1/3, 1/2, 1, 2, 4, 8, 16, and 80 units. One unit is roughly one ounce of desiccant material.

Standard sizes for packets are as follows: 1/4, 1/2, 1, 2, 3, 5, and 10 grams.

Standard sizes for canisters are as follows: 1/2, 1, 2, and 3 grams.

What is a desiccant "unit"?

In desiccant terminology, a "unit" is the quantity of desiccant required to meet the U.S. Military's specification (MIL-D-3464E) for packaged desiccant products. Under this specification, a unit is the quantity of desiccant that will adsorb 3.00 grams of water vapor at 20% relative humidity or 6.00 grams of water vapor at 40% relative humidity at 77°F (25°C).

How do you use desiccant packs?

  1. Place your item into an anti-static bag, static shielding bag, or a plastic zip locking bag and insert the desiccant packet.
  2. Seal the bag immediately.
  3. The clay desiccant pack will help to remove moisture from the air within the package.

 

How to Store Desiccant Packs?

Unused desiccant packs should be stored in an air-tight container. To preserve their effectiveness, they should be kept in the case immediately before use.

What are clay desiccants?

Clay desiccants are non-hazardous, moisture-absorbent substances created by the controlled drying of calcium (bentonite) aluminosilicate clay. This naturally occurring montmorillonite clay has a special affinity for moisture and is chemically inert and non-corrosive. 

 

Clay is the least expensive of all desiccants and highly effective within normal temperature and relative humidity ranges. It is used in most industrial applications requiring humidity control. Clay desiccant can adsorb up to 28% of its weight in water vapor at 77°F (25°C) and 80% relative humidity. 

 

Clay desiccant packs work satisfactorily below 120°F (49°C). Above 120°F (49°C), there is a possibility that the clay will give up moisture rather than pull it in (silica gel or molecular sieve are suitable for such temperatures). 

How are desiccants packaged?

Desiccants are generally packaged in bags, 5-gallon buckets or pails, packets, canisters, or fiber drums. (Packets are sometimes referred to as "sachets" or "pouches.")

 

Desiccants in bags are commonly referred to as industrial desiccants. They are primarily used by industry because their medium to large size enables them to adsorb moisture in heavy-duty applications. 

 

Bagged desiccants are available in:

Tyvek (heat sealed)
Kraft paper (heat sealed)
Lantuck non-woven rayon/polyester blend (string sewn)
 
The term "bagged" desiccants commonly refers to any desiccant that is packaged by the unit.

What is the difference between a Tyvek clay desiccant and a kraft paper desiccant

The key differences between Tyvek clay desiccants and Kraft paper desiccants lie in the materials used for the packaging, durability, breathability, and specific applications:

 

  1. Material
    Tyvek clay desiccant: Tyvek is a synthetic material made from high-density polyethylene fibers, which is tear-resistant, moisture-resistant, and breathable. It allows water vapor to pass through while maintaining durability and protection.
    Kraft paper desiccant: Kraft paper is a natural, biodegradable material. It is breathable and eco-friendly, but not as durable or moisture-resistant as Tyvek.
  2. Durability
    Tyvek clay desiccant: Extremely durable, resistant to tearing and punctures. It provides long-lasting performance in harsh environments.
    Kraft paper desiccant: Less durable compared to Tyvek. It can tear more easily, especially in conditions where rough handling is common.
  3. Breathability
    Tyvek clay desiccant: Offers excellent breathability, allowing for efficient moisture absorption while keeping the desiccant material inside secure.
    Kraft paper desiccant: Also breathable but may not be as effective as Tyvek in certain high-moisture environments.
  4. Appearance
    Tyvek clay desiccant: Typically white with a smooth surface, giving a more modern or industrial appearance.
    Kraft paper desiccant: Brown, with a rough, natural look, often associated with eco-friendly or traditional packaging.
  5. Applications
    Tyvek clay desiccant: Used in situations where higher durability and resistance to external factors are needed, such as electronics, pharmaceuticals, or long-term storage.
    Kraft paper desiccant: Common in less demanding environments, such as packaging of food, textiles, or products that require a more environmentally conscious solution.
  6. Environmental Impact
    Tyvek clay desiccant: Tyvek is not biodegradable but can be recycled under certain conditions.
    Kraft paper desiccant: Kraft paper is biodegradable and more eco-friendly, making it a popular choice for those focusing on sustainability.

Tyvek is a registered trademark of Dupont. / Desi Pak is a registered trademark of Süd-Chemie / Süd-Chemie is a division of the Clariant Company

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