Foshan Weller Moisture Proof Technology Co., Ltd. is one of the most experienced manufacturers and suppliers of silica gel for drying flowers in China. If you're going to wholesale high quality silica gel for drying flowers, welcome to get free sample and discount information from our factory. We also accept customized orders.
China Silica Gel For Drying Flowers manufacturers and suppliers since 2009, with our own factory. Accept wholesale, OEM, ODM orders. Provide custom solutions.

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Parameter |
Description |
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Product Type |
Silica Gel for Drying Flowers |
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Material |
Silicon Dioxide (SiO₂) |
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Color |
Available in multiple colors (e.g., orange, blue, white) |
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Particle Size |
0.5 mm-2.0 mm (fine granules); or custom sizes |
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Moisture Absorption |
Absorb up to 30%-40% of its weight in moisture |
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pH Value |
Neutral (pH 6 - 7) |
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Packaging Sizes |
Available in 250g, 500g, 1kg, and bulk sizes |
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Reusability |
Reusable after drying (heat in oven at 100-150°C for regeneration) |
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Safety Features |
Non-toxic, environmentally friendly, safe for handling |
This silica gel for drying flowers is a highly effective and widely used desiccant due to its exceptional moisture absorption properties, which allow it to preserve the shape and color of blooms efficiently.
High Absorption Capacity
Under optimal conditions (at room temperature, 25°C, and high relative humidity >80%), this silica gel for drying flowers can absorb moisture equivalent to approximately 30% to 40% of its own weight. This means that 100 grams of silica gel can absorb 30 to 40 grams of water vapor.
Excellent Equilibrium Capacity
Even at a standard relative humidity of 50% and 25°C, its equilibrium moisture adsorption is still remarkably high, at around 20% to 25% by weight.
Deep Drying Ability
The primary advantage is its ability to create a very low-humidity microenvironment. It can reduce the relative humidity in a sealed container to below 10%, which is crucial for rapidly removing moisture from floral tissue without causing cell collapse or significant color fading.
Recommended Usage Ratio
For effective drying, a minimum ratio of 4:1 by weight is generally recommended. For very moist or dense blooms, a higher ratio (e.g., 6:1 or 8:1) is advised. This ensures there is sufficient desiccant to handle the released water without becoming saturated.
Reusability and Regeneration
A key economic and functional benefit is its reusability. When saturated, this silica gel for drying flowers can be regenerated by heating in an oven at 110°C to 120°C for 1-2 hours. This process drives off the absorbed water, restoring its capacity. High-quality desiccant can undergo hundreds of such regeneration cycles without a significant loss in performance.
Applications
This silica gel for flowers is widely regarded as the best method for preserving, as it rapidly absorbs moisture while maintaining its original shape, color, and fine details much more effectively than air-drying. It is particularly well-suited for the following types:
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Type |
Specific Examples |
Key Advantages |
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Delicate-Petaled |
Roses, Peonies, Tulips, Ranunculus, Anemones |
Maintain its natural form and layered structure; Prevent crushing; excellent color retention. |
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Intricate Structure |
Baby's Breath, Lavender, Larkspur, Statice, Forget-Me-Nots |
Particles can surround complex shapes and tiny florets, ensuring complete, even drying and preventing mold. |
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Vividly Colored |
Pansies, Gerbera Daisies, Marigolds, Chrysanthemums, Zinnias |
Fast dehydration helps "lock in" bright and dark pigments, minimizing fading and browning. |
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Dense or Thick |
Carnations, Lilies, Daisies, smaller Sunflower heads, Cornflowers |
Effectively draw moisture from the thick centers (receptacles) and dense petal structures. |
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For 3D Preservation |
Any bloom where a natural, upright posture is desired (e.g., a fully open rose) |
They can be buried upright, drying in their natural blooming state for display in shadow boxes or arrangements. |
Important Considerations
- Less Suitable For: with very high water content, such as succulents or fresh berries (e.g., rose hips). They may crack or shrivel excessively.
- How to Use: Bury them completely in a sealed container of silica gel crystals for 3-7 days (depending on size and thickness).
- Key Benefit: This silica gel for drying flowers is reusable. It can be reactivated by heating. It provides vastly superior results compared to traditional air-drying methods for preserving detail and color.
Recommended Dosage For Different Scenarios
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Drying Scenario & Method |
Recommended Dosage & Ratio (Per Flower) |
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General Weight Ratio |
1 : 1 (by weight) |
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By Size (Burial Method) |
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Small (e.g., violets, mini roses) |
30 - 50 grams |
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Medium (e.g., standard roses, carnations) |
100 - 200 grams |
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Large/Dense (e.g., peonies, large hydrangeas) |
300 - 500 grams or more |
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By Container Volume (Sealed Container Method) |
It should fill 2/3 or more of the container's volume |
If you are interested in our silica gel for drying flowers, please feel free to contact us !
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About Us
Foshan Weller Moisture-Proof Technology Co., Ltd. was established in 2009. We are a professional manufacturer and supplier in China, with an factory of over 8,000 square meters.
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Product Range |
moisture-proof, mildew-proof, odor-proof and rust-proof products. |
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Applications |
designed for residential, commercial and industrial use. used for product packaging, transportation, and warehousing in different industries. |
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Service |
Accept wholesale, OEM, ODM orders; Provide custom solutions. |
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Certifications |
SGS, RoHS, REACH, FDA, DMF; SIMT,MIL-D-3464E, DIN55473, ISO9001, ISO14001, BSCI. |
Product Details and Summary
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Product Type |
silica gel desiccant (moisture absorbing material) |
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Classification |
1. non-indicating silica gel 2. indicating silica gel (1) blue indicating silica gel (blue to pink; containing cobalt chloride) (2) orange indicating silica gel (orange to green; cobalt free and environmentally friendly) |
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Indicator Function |
You can choose silica gel with color indication function, to achieve a more convenient reminder function. |
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Main Components |
silicon dioxide (SiO₂); Content ≥ 98% |
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Appearance |
granular, spherical, powdered, beads crystals, sand, etc. |
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Colors |
transparent, translucent, white, blue, or orange |
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Particle Size |
1-3mm, 2-4mm, 3-5mm; or custom sizes |
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Bulk Density |
approximately 700-800 kg/m³ |
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Surface Area |
700-800 m²/g |
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Pore Volume |
0.4-0.8 cm³/g |
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Applicable Humidity Level |
20%-90% RH |
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Operating Temperature Range |
-40 ℃ to 200 ℃ (long-term stability) |
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Maximum Moisture Absorption Rate |
30%-40% of its own weight |
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Physical Properties |
stable internal structure. no expansion or liquefaction. not easily crushed. dust-free. |
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pH |
4-8 |
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Chemical Properties |
chemically inert; It will not chemically react with the inside products. |
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Human-Friendly Feature |
odorless and non-toxic. It meets food grade standards. |
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Environmentally Friendly Feature |
using packaging paper and materials that are biodegradable within two years. It can be discarded for use as fertilizer. |
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Regeneration Temperature |
80℃-150 ℃ ( It can be reused after heating for 2-4 hours.) |
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Packaging Material |
breathable material with strong sealing properties. You can customize packaging materials according to your needs. |
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Printing |
You can custom printed text, pictures, logo for better brand images. |
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Packaging Capacity |
1g, 2g, 5g, 10g, 50g, 100g, 500g, 1000g; or custom capacity |
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Storage |
It should be tightly sealed and stored in a cool, dry place; away from direct sunlight and chemical pollution. |
| Certifications | SGS, RoHS, REACH, FDA, DMF; SIMT,MIL-D-3464E, DIN55473, ISO9001, ISO14001, BSCI. |

