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Tyvek™ Desiccant Packet

Blue Indicating Silica Gel

Desiccant Capsules


IMPAK is a world leader in the production and distribution of moisture adsorbing desiccants. With over 100 different desiccant products, the ability to create custom blends (for instance, by mixing activated carbon with silica gel, we can create a desiccant product capable of adsorbing both odor and moisture), and competitive pricing, your options are virtually endless.

Need High Temperature Sintered Desiccant Capsules?

If you have an application that requires product specifications or a blend not listed here, contact us at: 310-715-6600.

    Skip straight to Non-Indicating Silica Gel
    Skip straight to Indicating Silica Gel
    Skip straight to Molecular Sieve
    Skip straight to Clay
    Skip straight to Activated Carbon
    Skip straight to Activated Carbon / Silica Gel

Please note that the information on this page is not meant to be exhaustive. For a more thorogh comparison, please refer to our Desiccant Comparison Chart.


Non-Indicating Silica Gel
Non-Indicating Silica Gel is effectively the same as Indicating Silica Gel, except that it is white and does not change color when it has reached its moisture adsorption capacity.

For more information on Silica Gel, please refer to Indicating Silica Gel below.

Non-Indicating Silica Gel Packets; Tyvek 1059

P/N Gm. Weight Dimensions MylarFoil Bag w/zip 1 Case 2-4 Cases 5-9 Cases 10+ Cases  
39SG01
30,000/Case
0.25 Gram 0.625" x 0.75" P/N: 39SG31
$72.50/3,000 pcs
$198.80 $182.95 $169.90 $156.10
39SG03
20,000/Case
0.5 Gram 0.67" x 1" P/N: 39SG33
$72.50/2,000pcs
$198.80 $182.95 $169.90 $156.10
39SG05
15,000/Case
0.75 Gram 0.67" x 1.375" P/N: 39SG35
$72.50/1,500pcs
$198.80 $182.95 $169.90 $156.10
39SG07
10,000/Case
1.0 Gram 0.75" x 1.375" P/N: 39SG37
$72.50/1,000pcs
$198.80 $182.95 $169.90 $156.10
39SG09
9,000/Case
1.5 Gram 0.75" x 1.625" P/N: 39SG39
$72.50/900pcs
$198.80 $182.95 $169.90 $156.10
39SG11
6,000/Case
2.0 Gram 0.75" x 1.89" P/N: 39SG41
$72.50/600pcs
$198.80 $182.95 $169.90 $156.10
39SG12
4,000/Case
3.0 Gram 1" x 2.17" P/N: 39SG42
$72.50/400pcs
$198.80 $182.95 $169.90 $156.10
39SG15
3,000/Case
5.0 Gram 1" x 2.75" P/N: 39SG45
$72.50/300pcs
$182.80 $168.20 $155.40 $142.60
39SG17
2,000/Case
7.0 Gram 1" x 3.15" P/N: 39SG47
$72.50/200 pcs
$182.80 $168.20 $155.40 $142.60
39SG19
1,800/Case
10.0 Gram 1" x 4.15" P/N: 39SG49
$72.50/180 pcs
$182.80 $168.20 $155.40 $142.60
39SG23
1,200/Case
14.0 Gram 1.5" x 3.375" P/N: 39SG53
$72.50/120 pcs
$182.80 $168.20 $155.40 $142.60


Indicating Silica Gel

Indicating Silica gel is extremely efficient at temperatures below 77°F (25°C)

Typical Applications include: Dry food products such as jerky, medicine, vitamins, shoe boxes, electronics. Silica Gel is also widely used in compressed air systems. It is possible to prevent system failures due to the accumulation of moisture by filtering the compressed air through a packet of silica gel. Compressed air systems with moisture adsorbers are also needed to prevent the degradation signals transmitted by high-capacity radio and satellite transmitters. Indicating Silica Gel changes color when it has reached its moisture adsorption capacity.


Indicating Silica Gel Packets

P/N Gm. Weight Dimensions MylarFoil Bag w/zip 1 Case 2-4 Cases 5-9 Cases 10+ Cases  
40ISG01
30,000/Case
0.25 Gram 0.625" x 0.75" P/N: 40ISG31
$72.50/3,000pcs
$198.80 $182.95 $169.90  
40ISG03
20,000/Case
0.5 Gram 0.67" x 1" P/N: 40ISG33
$72.50/2,000pcs
$198.80 $182.95 $169.90 $156.10
40ISG05
15,000/Case
0.75 Gram 0.67" x 1.375" P/N: 40ISG35
$72.50/1,500pcs
$198.80 $182.95 $169.90 $156.10
40ISG07
10,000/Case
1.0 Gram 0.75" x 1.375" P/N: 40ISG37
$72.50/1,000pcs
$198.80 $182.95 $169.90 $156.10
40ISG09
9,000/Case
1.5 Gram 0.75" x 1.625" P/N: 40ISG39
$72.50/900 pcs
$198.80 $182.95 $169.90 $156.10
40ISG11
6,000/Case
2.0 Gram 0.75" x 1.89" P/N: 40ISG41
$72.50/600 pcs
$198.80 $182.95 $169.90 $156.10
40ISG13
4,000/Case
3.5 Gram 1" x 2.17" P/N: 40ISG43
$72.50/400 pcs
$198.80 $182.95 $169.90 $156.10
40ISG15
3,000/Case
5.0 Gram 1" x 2.75" P/N: 40ISG45
$72.50/300 pcs
$182.80 $168.20 $155.40 $142.60
40ISG17
2,200/Case
7.0 Gram 1" x 3.15" P/N: 40ISG47
$72.50/220 pcs
$182.80 $168.20 $155.40 $142.60
40ISG19
1,800/Case
10.0 Gram 1" x 4.15" P/N: 40ISG49
$72.50/180 pcs
$182.80 $168.20 $155.40 $142.60
40ISG23
1,200/Case
14.0 Gram 1.5" x 3.375" P/N: 40ISG53
$72.50/120 pcs
$182.80 $168.20 $155.40 $142.60
40OISG53ZB 14.0 Gram Orange 1.5" x 3.375" $72.5/100 pcs

What makes molecular sieve the best desiccant?

Molecular sieves retain their ability to adsorb water molecules over a much wider spectrum of temperatures than other desiccant materials. Molecular sieves also have a much higher equilibrium capacity for water vapor under very low humidity conditions.

Molecular sieves contain a uniform network of crystalline pores and empty adsorption cavities, which give it an internal adsorptive surface area of 700 to 800 gm2 (1/2 the total volume of the crystals). Because of its uniform structure, molecular sieves will not desorb moisture into the package as readily as silica gel or clay as temperatures rise. Being synthetic rather than naturally occurring, molecular sieve is higher in cost per unit, but due to its extremely large range of adsorptive capabilities, it is often the best value.

Molecular Sieve Packets

P/N Gm. Weight Dimensions MylarFoil Bag w/zip 1 Case 2-4 Cases 5-9 Cases 10+ Cases  
41MS01
30,000/Case
0.25 Gram 0.625" x 0.75" P/N: 41MS31
$72.50/3,000 pcs
$287.50 $264.50 $244.40 $217.10
41MS03
20,000/Case
0.5 Gram 0.67" x 1" P/N: 41MS33
$72.50/2,000pcs
$278.60 $264.50 $244.40 $217.10
41MS05
15,000/Case
0.75 Gram 0.67" x 1.375" P/N: 41MS35
$72.50/1,500pcs
$278.60 $264.50 $244.40 $217.10
41MS07
10,000/Case
1.0 Gram 0.75" x 1.375" P/N: 41MS37
$72.50/1,000pcs
$278.60 $264.50 $244.40 $217.10
41MS11
6,000/Case
2.0 Grams 0.75" x 1.89" P/N:41MS41
$72.50/600pcs
$272.10 $250.35 $231.30 $226.90
41MS13
4,000/Case
3.5 Grams (13X) 1" x 2.17" P/N: 41MS43
$72.50/400pcs
$272.10 $250.35 $231.30 $222.35
41MS15
3,000/Case
5.0 Grams 1" x 2.75" P/N: 41MS45
$72.50/300pcs
$262.25 $241.30 $222.95 $208.25
41MS17
2,000/Case
7.0 Grams (13X) 1" x 3.15" P/N: 41MS47
$72.50/200pcs
$262.25 $241.30 $222.95 $219.90
41MS19
1,800/Case
10.0 Grams 1" x 4.15" P/N: 41MS49
$72.50/180pcs
$262.25 $241.30 $222.95 $215.85
41MS23
1,200/Case
14.0 Grams 1.5" x 3.375" P/N: 41MS53
$72.50/120pcs
$262.25 $241.30 $222.95 $205.74
U1MSNWP
50/Case
28.0 Grams 3" x 4" Only available in case quantity $24.35 $21.45 $17.55 $15.85
U2MSTP 56.0 Gram 3" x 5.5" $2.34 bag
$195.00/100 pcs


Clay

Clay works effectively at temperatures below 120°F (49°C)

Typical applications include: Food packaging, electronic products, navigational instruments, the storage of artifacts, wireless communication equipment and mechanical parts.
Clay is 100% natural, nontoxic, degradable and environmentally safe.


Clay Packets

P/N Gm. Weight Dimensions MylarFoil Bag w/zip 1 Case 2-4 Cases 5-9 Cases 10+ Cases  
38MC05
20,000/Case
0.5 Gram 5/8"x 1 1/16" P/N: 38MC35
$72.50/2,000pcs
$199.75 $188.10 $172.00 $165.00
016WP1500CU
3,000/Case
5.5 Gram 2.25" x 2.55" P/N: 016WP100CU
$13.50/100pcs
198.70 172.45 157.55 145.94
2050DCC01 28.0 Gram $67.50/300 pcs


Activated Carbon

Activated Carbon is roasted organic material (coconut shell, bone, wood) that forms porous granules. It is a versatile and inexpensive adsorbent that comes in many sizes and has a range of applications from gas, water, and metal purification to air filtration. Activated carbon has been used extensively for many years as an adsorbent of odors and toxic gases.


Activated Carbon Packets

P/N Gm. Weight Dimensions MylarFoil Bag w/zip 1 Case 2-4 Cases 5-9 Cases 10+ Cases  
42AC15
2,000/Case
5.0 Gram 2.375" x 2.55" P/N: 42AC45
$72.50/200 pcs
$176.15 $160.00 $144.75 $136.00


Activated Carbon / Silica Gel

Activated Carbon / Silica Gel blend provides adsorption of both moisture and odor from the product.


Activated Carbon and Silica Gel Packets (50% by weight)

P/N Gm. Weight Dimensions MylarFoil Bag w/zip 1 Case 2-4 Cases 5-9 Cases 10+ Cases  
44ACSG15
3,000/Case
5.0 Gram 2.375" x 2.55" P/N: 44ACSG45
$72.5/300pcs
$179.45 $156.60 $134.25 $116.35



Tolerances:
Weight: ±10%
Dimensions: ±1/32"
Moinsture content: not to exceed 2%
How Shipped:
10-gallon, poly-lined fibre drums
1-gallon, poly lined tin cans
(1 gallon can partnumbers listed in italics)
(Moisture indicating card included in each container)
For sizes or mixture where Part No. is not listed contact factory.

NOTE: For small quantity requirement:
P/N 39SG60100

100 x 1 gram packets

5/8" x 1 1/16"
1 pack $11.10 each $11.10
Quantity:
2 pack $9.60 each $19.20
Quantity:
3 pack $8.80 each $26.40
Quantity:

The best solution:
P/N 39SG41ZB a sealed aluminium foil ziplock bag w/500 2.0 gram silica gel packets $44.50
Quantity:
P/N 40ISG41ZB a sealed aluminium foil ziplock bag w/500 2.0 gram indicating silica gel packets $57.50
Quantity:

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