Product Description
Silica gel SG6 – mix with moisture indicator, 800 g package is a professional desiccant suitable for 3D printing, industry, household, and laboratories. A mixture of
transparent and orange silica gel beads in a ratio of approximately 20 : 1 (clear : orange) ensures effective moisture absorption while providing
visual indication of saturation.
Orange beads contain an
ecological indicator (methyl red 0.09 %), which changes color from orange to green as humidity increases. This allows you to
instantly see when the silica gel needs to be dried/regenerated.
Main Advantages for 3D Printing and Technical Use
- Filament protection against moisture – prevents popping, bubbles, and degraded print quality.
- Visual status check – the color change of the beads allows for easy recognition of moisture saturation.
- Reusable – after drying in an oven or microwave, the silica gel can be used again without significant loss of performance.
- High purity – contains min. ~99.7 % SiO₂, the beads are odorless, electrically non-conductive, and insoluble.
- Cobalt chloride-free – a safer alternative to traditional blue indicator silica gels.
How Silica Gel Works
Silica gel is a
highly porous silica gel with an extremely large active surface area that
adsorbs water vapor from the air. This reduces relative humidity in an enclosed space and protects stored items.
Color Change at Moisture Saturation
- 0 % relative humidity: orange
- 8 %: yellow-brown (at 20 °C, min. 20 % relative humidity)
- 20 %: brown-green (at 20 °C, min. 50 % relative humidity)
- 30 %: green (at 20 °C, min. 90 % relative humidity)
Green color signals
heavily saturated material that needs to be regenerated.
Recommended Use
Silica gel SG6 is suitable for:
- storing 3D filaments in closed boxes, containers, or bags,
- drying and protecting electronics, optics, and measuring instruments,
- dehumidifying air in containers, cabinets, and display cases,
- drying herbs, flowers, semi-finished products, and other applications where humidity reduction is needed.
The beads can be poured into
textile bags, plastic boxes, jars, or special dry boxes for filaments or electronics.
Regenerating (Drying) Silica Gel
To restore adsorption capacity, Silica gel SG6 can be easily regenerated:
- In a convection oven:
- recommended temperature approx. 110–130 °C (max. 160 °C),
- time depends on the amount and layer thickness (usually tens of minutes).
- In a microwave oven:
- approx. 1–10 minutes at a power of around 650 W (1 kg approx. 10 minutes),
- perform regeneration in shorter intervals and check the color of the beads.
After regeneration, the color of the orange beads
returns to the original orange, meaning the desiccant is ready for use again.
Technical Parameters
| Parameter |
Value |
| Product Type |
Silica gel SG6 – indicator mix |
| Form |
Beads |
| Bead Diameter |
approx. 2–5 mm (more than 80 % in this range) |
| Color |
Transparent + orange (changes to green upon saturation) |
| Indicator |
Methyl red, approx. 0.09 % in orange beads |
| SiO₂ Content |
approx. 99.7 % |
| Bulk Density |
approx. 620–750 g/l |
| Specific Surface Area |
~ 800 m²/g |
| Pore Volume |
approx. 0.35–0.45 ml/g (≈ 0.4 ml/g) |
| Nominal Pore Diameter |
approx. 2.0–3.0 nm (≈ 25 Å) |
| pH |
approx. 4–6 |
| Adsorption Capacity at 23 ±2 °C |
~11 % (20 % RH), ~25.5 % (50 % RH), ~36 % (90 % RH) – based on own weight |
| Regeneration |
oven approx. 110–130 °C / microwave oven |
| Indicator Bead Content |
clear : orange ratio approx. 20 : 1 |
| Hazardous Substance Content |
cobalt chloride-free |
| Package Weight |
800 g silica gel |
Safety and Storage
- Store in a closed container, out of reach of children.
- Do not inhale dust; when handling larger quantities, gloves and possibly a respirator are recommended.
- Store unused material in a dry place; after opening the package, it is advisable to transfer it to an airtight container as soon as possible.
Use in 3D Printing Environment
For 3D printing, we recommend placing Silica gel SG6:
- in closed boxes for filaments,
- in containers of multi-material systems (AMS, MMU, etc.),
- in cabinets and closed print chambers, where it helps maintain low humidity.
Thanks to its high efficiency, easy regeneration, and color indicator,
Silica gel SG6 – mix with moisture indicator is the ideal choice for anyone looking to reliably protect their filaments and other sensitive materials from moisture.
Key Features:
- Mixture of transparent and orange silica gel beads with moisture indicator
- Visual color change from orange to green based on water saturation
- Ideal for protecting 3D filaments, electronics, optics, and other sensitive materials
- High adsorption capacity due to an active surface area of approx. 800 m²/g
- Reusable – easy regeneration in oven or microwave
- Safe – cobalt chloride-free, electrically non-conductive, and odorless
- Fine beads with a diameter of approx. 2–5 mm suitable for bags, boxes, and containers
- Certified quality with high SiO₂ content (~99.7 %)
