Silica Gel Blue Indicator
Color-changing desiccant that shows when to replace
Blue silica gel that turns pink when saturated, providing visible moisture-level indication.
Product Overview
Blue silica gel contains a cobalt-based moisture indicator that changes color from deep blue to pink as it adsorbs water, giving an instant visual check of desiccant status. It offers the same high adsorption capacity as white silica gel plus the convenience of at-a-glance condition monitoring.
Our blue indicator silica gel is supplied in 2-4mm beads with a uniform color response, widely used in air dryers, transformer breathers and instrument cabinets where timely desiccant replacement is critical.
Key Features
- Visible blue-to-pink color change on saturation
- Same adsorption capacity as white silica gel
- Used in transformer breathers and air dryers
- Uniform bead color for reliable indication
- Available in sachets, bags and bulk
Technical Specifications
| SiO₂ content | ≥ 98% |
|---|---|
| Water adsorption | ≥ 28% (RH 60%) |
| Color | blue (dry) / pink (saturated) |
| Bead size | 2-4mm, 4-6mm |
| Cobalt indicator content | 1-2% |
Applications
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