Description
Introduction blue silica gel
Blue silica gel from astzbd absorbs moisture and protects goods from damp, rust and mold. This 25 kg bag comes from China and suits bulk industrial use. Moreover, the blue beads change color to pink when they reach saturation. Users see at a glance when the beads need replacement or drying. The porous structure traps water vapor inside millions of tiny pores. In addition, the beads hold up to 30% of their weight in moisture at high humidity. Workers reuse the beads after they dry them in an oven. Therefore, the gel lowers long-term packaging costs.
Technical Specifications silica gel 25 kg bag
| Parameter | Detail |
| Product Name | Blue Silica Gel (color-indicating) |
| Type | Industrial desiccant beads |
| Main Component | Silicon dioxide (SiO₂), 98% or higher |
| Appearance | Blue, hard, round beads |
| Bead Size | 2-4 mm (3-5 mm available) |
| Color Change | Blue when dry, pink when saturated |
| Adsorption Capacity (20% RH) | 10% or higher |
| Adsorption Capacity (50% RH) | 20% or higher |
| Adsorption Capacity (90% RH) | 30% or higher |
| Moisture Content (as supplied) | 2% or lower |
| Bulk Density | 700-800 g/L |
| Surface Area | 650 m²/g or higher |
| Regeneration | Dry at 120-150°C for 2-3 hours |
| Packing | 25 kg bag |
| Country of Origin | China |
Key Features industrial silica gel
- The blue indicator beads show the moisture level at a glance.
- The beads turn pink when they reach saturation.
- The porous structure absorbs water vapor fast.
- Users reuse the beads after they dry them in an oven.
- The hard, round beads resist crumbling during handling.
- The beads flow easily into bags, boxes and containers.
- Moreover, the gel works in a wide range of temperatures and humidity levels.
- The chemically stable beads do not react with most goods.
- The 25 kg bag gives you bulk value for factories and warehouses.
- The sealed packing keeps the beads dry until you open the bag.
Who Uses This silica gel desiccant
- Textile and garment exporters
- Pharmaceutical and medical packaging units
- Electronics and electrical manufacturers
- Leather and footwear factories
- Food packaging and storage companies
- Laboratories and instrument rooms
- Warehouses and shipping companies
Applications blue silica gel price in Bangladesh
- Protecting garments and fabrics in export cartons
- Keeping electronic parts dry during storage and shipping
- Preventing rust on machines, tools and metal parts
- Drying air in desiccators and instrument cabinets
- Protecting medicines and medical devices in packaging
- Filling sachets for shipping containers and warehouses
- Controlling humidity in labs and storage rooms
Frequently Asked Questions blue silica gel
- What does blue silica gel do?
Blue silica gel absorbs moisture from the air around it. As a result, it protects goods from damp, rust and mold. - Why do the beads change color?
The blue indicator turns pink when the beads reach saturation. The color tells you when to dry or replace them. - Can I reuse the beads?
Yes, dry the pink beads in an oven at 120-150°C for 2-3 hours. They return to blue and absorb moisture again. - How much moisture can the beads hold?
At 90% relative humidity, the beads hold at least 30% of their weight in moisture. - Can I use blue silica gel with food?
No, keep the beads away from food, drinks and children. Do not eat them. Use food-grade desiccant sachets for direct food packing. - What does the 25 kg bag suit?
The 25 kg bag suits factories, warehouses and exporters who need bulk desiccant. - Where does this silica gel come from?
It comes from China.
Why Buy From astzbd silica gel 25 kg bag
- Astzbd supplies industrial-grade silica gel in sealed bags.
- Our team helps you choose the right bead size for your use.
- We deliver across Bangladesh with careful packaging.
- Our support team answers your usage and regeneration questions.
- You receive competitive bulk pricing and dependable service.






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