clay desiccant

We carry Desiccare desiccant bags in a variety of sizes, both kraft and Tyvek bags. Call us for sizes and quantities. If you don’t know how much desiccant  you need, we can help with that too!  1-800-644-4032

Half Unit Bag of Clay Desiccant Tyvek Bag MIL-D-3464 NSN#6850-00-264-6568 550/Pail
Half Unit Desiccant Bag
Tyvek Bag
MIL-D-3464
NSN#6850-00-264-6568 550/Pail
Half Unit Bag of Clay Desiccant Kraft Bag MIL-D-3464 NSN#6850-00-264-6568 550/Pail
Half Unit Desiccant Bag
Kraft Bag
MIL-D-3464
NSN#6850-00-264-6568 550/Pail
1/16 Unit Bag of Clay Desiccant Kraft Bag MIL-D-3464 NSN #6850-00-264-6564 1200/pail

1/16 Unit Desiccant Bag
Kraft Bag
MIL-D-3464
NSN #6850-00-264-6564
1200/pail

 One Third Unit Bag of Clay Desiccant Kraft Bag MIL-D-3464 NSN #6850-00-264-6561 700/pail
One Third Unit Bag
of Clay Desiccant
Kraft Bag
MIL-D-3464
NSN #6850-00-264-6561
700/pail
One Third Unit Bag of Clay Desiccant Tyvek Bag MIL-D-3464 NSN #6850-00-264-6561 700/pail
One Third Unit  Bag
of Clay Desiccant
Tyvek Bag
MIL-D-3464
NSN #6850-00-264-6561
700/pail
Montmorillonite Clay Dessicant in a Kraft Bag - 1 unit - MIL-D-3464
One Unit Bag of Clay Desiccant
Kraft Bag
MIL-D-3464
NSN #6850-00-264-6035
300/pail
2 Unit Bag of Clay Desiccant Kraft Bag MIL-D-3464 NSN #6850-00-264-6573 150/pail
2 Unit Bag of
Clay Desiccant
Kraft Bag
MIL-D-3464
NSN #6850-00-264-6573
150/pail
2 Unit Bag of Clay Desiccant Tyvek Bag MIL-D-3464 NSN# 6850-00-264-6573 150/pail
2 Unit Bag of
Clay Desiccant
Tyvek Bag
MIL-D-3464
NSN# 6850-00-264-6573
150/pail
4 Unit Bag of Clay Desiccant Kraft Bag MIL-D-3464 NSN #6850-00-264-6574 500/Drum
4 Unit Bag of
Clay Desiccant
Kraft Bag
MIL-D-3464
NSN #6850-00-264-6574
500/Drum
4 Unit Bag of Clay Desiccant Tyvek Bag MIL-D-3464 NSN #6850-00-264-6574 500/Drum
4 Unit Bag
Tyvek Bag
MIL-D-3464
NSN #6850-00-264-6574
500/Drum
8 Unit Bag of
Clay Desiccant
Tyvek Bag
MIL-D-3464
NSN# 6850-00-264-6571
300/Drum
16 Unit Bag of Clay Desiccant Tyvek Bag MIL-D-3464 NSN # 6850-00-264-6572 150/Drum
16 Unit Bag
Tyvek Bag
MIL-D-3464
NSN # 6850-00-264-6572
150/Drum

Clay desiccant is the least expensive of all desiccants and is a naturally occurring non-hazardous mineral composed of magnesium aluminum silicate (a calcium aluminum silicate type of hydros clay).

Montmorillonite clay is used in most industrial applications requiring humidity control because it recharges easily and does not swell as it adsorbs water vapor. Subject to a degree of variability for being a natural material, clay desiccant will adsorb approximately 25% of its weight in water vapor at 77º F and 40% relative humidity.

This desiccant works well at low and room temperatures, but has a rather low ceiling temperature. At 120º F montmorillonite clay will begin to desorb or shed the moisture it has adsorbed, an important consideration for storage in hot areas.

Desiccants on their own can be extremely effective, although they work better when used in combination with moisture barrier bags. Different moisture barrier bag materials come with different MVTR ratings. These ratings are extremely important, as they are the only reference point when it comes to the amount of moisture that can seep in over a period of time. Currently, the most effective moisture barrier bag material has an MVTR rating of 0.02, meaning that only 0.02 grams of moisture can penetrate the material over a 24-hour period in 95% humidity.

Download a PDF for the datasheet on our desiccant here.

Desiccant Calculation Chart

Please note that a unit of desiccant refers to its drying capacity, not its volume. A unit (approximately one ounce) is the amount of desiccant that will absorb at least three grams of water vapor at 20% relative humidity and at least six grams of water vapor at 40% relative humidity at 77 degrees F (25 degrees C).

Container Size Units of

Desiccant

Required

Square

Feet

Square

Inches

Gallons Cubic

Feet

Cubic

Inches

0.1 15 1.1 0.14 237 1/6
0.2 30 2.1 0.28 476 1/3
0.3 45 3.2 0.42 714 1/2
0.6 90 6.2 0.83 1428 1
1.3 180 12.5 1.67 2856 2
1.9 270 18.7 2.50 4284 3
2.5 360 25.0 3.33 5712 4
3.1 450 31.2 4.16 7140 5
3.8 540 37.4 5.00 8568 6
4.4 630 43.6 5.83 9996 7
5.0 720 50.0 6.66 11424 8
5.6 810 56.1 7.50 12852 9
6.3 900 62.3 8.33 14280 10
7.5 1080 74.8 10.00 17136 12
8.8 1260 87.3 11.66 19992 14
10.0 1440 99.7 13.32 22850 16
20.0 2880 199.4 26.64 45700 32
50.0 7200 498.5 66.65 114250 80
100.0 14400 997.0 133.30 228500 160
120.0 18000 1240.0 166.00 285600 200
150.0 22500 1550.0 207.00 357000 250