Foshan Weller Moisture Proof Technology Co., Ltd. is one of the most experienced manufacturers and suppliers of silica gel for storage boxes in China. If you're going to wholesale high quality silica gel for storage boxes, welcome to get free sample and discount information from our factory. We also accept customized orders.
China Silica Gel For Storage Boxes manufacturers and suppliers since 2009, with our own factory. Accept wholesale, OEM, ODM orders. Provide custom solutions.
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Parameter |
Specification |
| Product Name | Silica Gel for Storage Boxes |
|
Material |
Silicon Dioxide (SiO2) |
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Appearance |
Beads or granules, translucent or white |
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Particle Size |
2-5 mm;custom sizes |
|
Moisture Absorption |
Up to 30-40% of its weight |
|
Packaging |
Small sachets or bulk packs |
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Usage Temperature |
-20°C to 60°C |
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pH Value |
Neutral to slightly acidic (pH 6-7) |
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Environmental Safety |
Non-toxic and environmentally friendly |
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Regeneration |
Possible via heating at 120°C-150°C |
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Shelf Life |
1-2 years |
This silica gel for storage boxes is a highly effective and widely used desiccant for protecting valuable items in storage boxes from humidity damage.
High Absorption Capacity
The primary advantage is its exceptional physical adsorption capacity. Under standard conditions (25°C / 77°F and high relative humidity of 60-90%), high-quality desiccant can adsorb moisture equivalent to approximately 20% to 35% of its own weight.
This means that 100 grams of desiccant can absorb 20 to 35 grams of water vapor. This capacity is significantly higher than many other common desiccants like clay or calcium chloride.
Performance at Different Relative Humidity (RH) Levels
Its absorption is relative to the ambient humidity. Its performance varies accordingly:
- At low humidity (20% RH): Absorption capacity is about 10% - 12% (i.e., 100g gel absorbs 10-12g water).
- At medium humidity (40% RH): Absorption capacity increases to approximately 20% - 22%.
- At high humidity (80% RH): Capacity rises sharply, reaching 30% - 40% or more.
This demonstrates that this silica gel for storage boxes works most efficiently in damp conditions, rapidly pulling moisture from the enclosed air within the storage box.
Speed
Due to its vast network of internal pores, this silica gel for storage boxes acts quickly, achieving most of its absorption within the first few hours in a sealed environment. It can significantly reduce humidity inside a box within 24 hours.
Saturation Point
At 100% RH, this silica gel for boxes can reach its maximum saturation capacity of nearly 40%. However, for practical storage purposes, it should be regenerated or replaced long before reaching full saturation.
Regeneration and Reusability
A major economic and environmental advantage is its ability to be regenerated by heating, which drives off the adsorbed water.
Regeneration Conditions
Heating the saturated gel at 110°C - 120°C (230°F - 250°F) for 1-2 hours will fully restore its adsorption capacity and original color (for indicating types).
Lifespan of Silica Gel for Storage Boxes
With proper care, this silica gel for storage boxes can be regenerated and reused dozens to hundreds of times with minimal performance degradation.
Dosage Reference
The amount of silica gel required depends primarily on three factors: the volume of the container, the ambient humidity, and the desired level of dryness.
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Storage Box Volume (Liters) |
Recommended (Grams) |
Usage Suggestions (Based on Common Pack Sizes) |
|
Small Box (0 - 10 L) |
50 - 100 g |
e.g., 1-2 units of 50g packets |
|
Medium Box (10 - 50 L) |
200 - 500 g |
e.g., 1 unit of 500g bag or 4-10 units of 50g packets |
|
Large Box/Container (50 - 100 L) |
500 - 1000 g |
e.g., 1-2 units of 500g bags |
|
Extra Large Box/Sealed Tub (100 L+) |
1000 g+ |
Add 500-1000g for every additional 100L. Use multiple bags distributed inside. |
Applications
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Storage Box Category |
Specific Examples |
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By Material |
Plastic Airtight Containers (e.g., PP, PE storage bins, food containers) |
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Metal Boxes/Tins (e.g., toolboxes, stainless steel canisters, metal cabinets) |
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Wooden Boxes/Chests (e.g., wooden chests, cabinets, cigar humidors) |
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By Contents |
Food & Dry Goods (e.g., dry pasta, grains, spices, tea, pet food) |
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Electronics & Precision Instruments (e.g., camera equipment, lenses, documents, stamps) |
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Documents & Valuables (e.g., important paperwork, photographs, book collections, leather goods) |
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Apparel & Footwear (e.g., seasonal clothing, leather shoes, handbags, sports gear) |
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Pharmaceuticals & Vitamins |
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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. |
|
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
|
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. |