Molecular Sieve Unit Paks are available in a variety of sizes and quantities and are housed in a Tyvek substrate.
Molecular Sieve is the most aggressive and expensive desiccant and comprised of a manufactured crystalline version of zeolite containing a network of uniform pores and empty cavities. Tyvek is extremely strong and hard to tear, non-dusting and has superior print quality.
These Molecular Sieve Unit Paks meet Mil Spec 3464 Type I & II, as well as DIN55473 compliant for direct food contact and can be used in a wide range of industries from military/government to consumer applications.
Available in a variety of quantities and sizes, the term "unit" is a quantity of desiccant, which will absorb a set percentage of its weight at certain levels of humidity.




Bead size: 1.7-2.5 or 3.0-5.0(mm)
Water content: less than 2%
Moisture absorption rate: 28%
Wrapping film: tyvek, non-woven or OPP
Weight (grams) | Size L*W(mm) | Packaging (pcs/ctn) | Carton size (cm) |
1 | 40*30 | 20000 | 45*30*47 |
2 | 50*35 | 10000 | 45*30*47 |
3 | 50*45 | 6000 | 45*30*36 |
5 | 60*45 | 4000 | 45*30*36 |
10 | 60*70 | 2000 | 45*30*30 |
20 | 85*60 | 1000 | 45*30*33 |
25 | 80*90 | 800 | 45*30*30 |
30 | 80*97 | 600 | 45*30*25 |
40 | 80*100 | 500 | 45*30*27 |
50 | 80*122 | 400 | 40*30*25 |
100 | 100*135 | 200 | 45*30*27 |
200 | 140*145 | 100 | 45*30*27 |
250 | 140*145 | 100 | 45*30*27 |
500 | 190*200 | 40 | 45*30*30 |
1000 | 190*205 | 20 | 40*30*20 |


1) Drying of various liquids (such as ethanol)
2) Drying of the air
3) Drying of refrigerant
4) Drying of natural gas and methane gas
5) Drying of unsaturated hydrocarbon and cracking gas, ethylene, acetylene, propylene, butadiene
6) 0.5g and 1g are most poppular for rapid test kits used.
7) For other industries used such as food/medical/garment/furniture/shoes/electronics etc, we can provide any sizes from 0.5g to 1000g.




For pricing, please provide following details:
Grams of molecular sieve per sachet
Sachet dimensions
Wrapping paper type
Quantity(pcs)
Any printing details