● The gel is mainly used for absorbing moisture for apparatus, instruments, and equipments in airproof condition to avoid them from rusting, and indicating the environmental relative humidity due to its obvious color change.
● The gel is mainly used for indicating desiccant’s absorbing degree and environmental relative humidity by being mixed with common silica gel in proportion. Besides, it is also widely used in precision apparatus, leather, shoes, garment, food, drug and household electric appliance industries as silicon gel desiccant.
Project |
Blue rubber indicator |
Color deterioration silica gel |
Blue rubber |
Typical value |
|
Adsorptive capacity% |
RH=20%≥ |
8.0 |
* |
* |
8.5 |
RH=35%≥ |
13.0 |
* |
* |
13.6 |
|
RH=50%≥ |
20.0 |
20.0 |
18.0 |
22.5 |
|
RH=90%≥ |
* |
* |
28.0 |
31.4 |
|
Rate of wear % |
≤10.0 |
≤10.0 |
≤10.0 |
≤3 |
|
Granularity qualified rate % |
≥96 |
≥90 |
≥90 |
≥97 |
|
Heating loss % |
≤5.0 |
≤5.0 |
≤5.0 |
≤0.9 |
|
Coloration change |
RH=20%≥ |
Blue color or ligh blue |
* |
* |
* |
RH=35%≥ |
Purple or purple red |
* |
* |
* |
|
RH=50%≥ |
Pink |
Pink |
Lilac or pink |
* |
|
Size |
1-3mm, 2-5mm, 4-8mm |
● Specially used as support and covering packing for catalyst in the High-Low Temperature Shift Furnace, Converter, Hydrogenation Shift Furnace, Desulfurization Furnace, etc.
● Used as packing in hot blast heater and heat transformer in steel industries.