Name: 3A Molecular sieve activated powder
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3A Molecular sieve activated powder

Molecular sieve activated powder

3A molecular sieve activated powder is a dehydrated synthetic zeolite powder with an effective pore opening of about 3 angstroms. Its highly selective pore structure allows it to adsorb water molecules while excluding larger compounds such as hydrocarbons. This makes it an ideal moisture scavenger for polyurethane systems, coatings, adhesives, and sealants, where it prevents unwanted bubbles and defects. The powder offers high water capacity, disperses easily, and remains chemically inert without altering the properties of the host formulation.

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3A Molecular Sieve Activated Powder – Key Applications

Gas Drying

Natural Gas & LNG – Prevents corrosion and freezing

Compressed Air – Protects equipment from rust

Industrial Gases (Propane, Ethylene, etc.) – Maintains product quality

Gas Separation

Oxygen Concentrators – Removes nitrogen to purify oxygen

Moisture Control

Desiccant for Electronics & Pharma Packaging

Ultra-Dry Manufacturing (Pharma, Specialty Chemicals, Electronics)

Other Industrial Uses

Catalyst Support

Petroleum Refining – Trace moisture removal

Breathable Air Systems (SCUBA, Firefighting)

Technical Items	Unit	Technical Specification
Model		3A	4A	5A	13X
Fineness	μm	2~4	2~4	2~4	2~4
Heap Specific Gravity	kg/m³	≥430	≥430	≥430	≥330
Static Water Adsorption (H=60% and Atmospheric Pressure 25℃)	%	≥22	≥23	≥25	≥26
PH Value		7~9	9~11	9~11	9~11
Package Water Content	%	≤1.5	≤1.5	≤1.5	≤1.5

Why 3A Molecular Sieve?

3Å pore size – Adsorbs water only

High drying capacity

Broad industry versatility

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3A Molecular sieve activated powder

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