Color-changing silica gel beads industrial desiccant 500g/bottle

Color Change Mechanism
Using fine-pore silica gel as the carrier with added indicator, it appears blue before moisture absorption. As moisture absorption increases, the color gradually changes from purple to light red, visually reflecting environmental humidity changes.

Physical Properties

Form: Glass-like spherical or irregular granules, with particle sizes available in 1-3mm, 2-4mm, 3-5mm, 4-8mm, etc.

Moisture Absorption Capacity: Specific surface area ≥600㎡/g, with strong adsorption capability for water vapor.

II. Core Functions and Applications

Dual Functions

· Moisture Absorption and Rust Prevention: Protects metal components of instruments, meters, and equipment in enclosed environments.

· Humidity Indication: Displays relative environmental humidity in real-time through color changes (blue → purple → pink).

Typical Application Scenarios

III. Product Specifications and Usage

Common Specifications

· Packaging: 500g/bottle, 20 bottles/box.

· Types: Besides blue, there is also cobalt-free orange silica gel (changes from yellow to green upon moisture absorption, environmentally friendly and non-toxic).

Usage and Regeneration

· Determining End of Life: Replace when it completely turns light red.

· Regeneration Method: Dry at 120°C until it returns to blue, can be reused.