Foshan Weller Moisture Proof Technology Co., Ltd. is one of the most experienced manufacturers and suppliers of electrical panels silica gel in China. If you're going to wholesale high quality electrical panels silica gel, welcome to get free sample and discount information from our factory. We also accept customized orders.

China Electrical Panels Silica Gel manufacturers and suppliers since 2009, with our own factory. Accept wholesale, OEM, ODM orders. Provide custom solutions.

Electrical Panels Silica Gel Manufacturers

This electrical panels silica gel is a highly efficient moisture-absorbing material. It is specially designed for moisture-proofing of power equipment and electrical control cabinets (distribution cabinets, switch cabinets, etc.). Its high adsorption performance can effectively reduce the humidity in the cabinet, and prevent condensation, corrosion and short circuit. This desiccant can ensure the stable operation of electrical equipment in a humid environment, and extend the service life of the equipment.

Noted: We can custom silica gel desiccant according to specific applications.

Parameter	Specification
Product Name	Electrical Panels Silica Gel
Material Composition	High-purity Silicon Dioxide (SiO₂)
Moisture Absorption (25°C, RH 90%)	≥30% (by weight)
Color Indicator (Optional)	Blue → Pink (or Orange → Green) upon saturation
Operating Temperature	-40°C to +200°C
Particle Size	2-5 mm (customizable)
Regeneration Method	Heating at 110°C–120°C for 2–4 hours
Reusability	Yes (multiple cycles with minimal degradation)
Packaging Options	Breathable paper bags, non-woven fabric bags, canisters, or hanging sachets;or per customer requirement
Standard Packaging Sizes	50g/bag, 100g/bag, 500g/bag (custom sizes available)
Safety & Compliance	RoHS compliant, non-toxic, odorless

Moisture Absorption Capacity

Its moisture absorption capacity can reach more than 30% of its own weight (tested under standard environment of temperature 25℃ and relative humidity 90%). According to the test, under saturated state, 1 kg of electrical panels silica gel can absorb about 300-350 grams of water vapor. In a medium humidity environment with a relative humidity of 60%, it can still maintain a moisture absorption rate of more than 20%.

This desiccant can maintain stable moisture absorption performance in a wide temperature range of -40℃ to 200℃. It is especially suitable for outdoor electrical cabinets (such as photovoltaic inverter cabinets) with day and night temperature differences. Under typical working conditions of electrical cabinets (40℃/95%RH), it can absorb more than 85% of ambient moisture within 48 hours. Moreover, after drying and regeneration at 150℃, the moisture absorption capacity can be restored to more than 95% of the initial value.

Product Features

1. Its moisture absorption rate is as high as 30% or more (RH=90%, 25℃). It can quickly absorb moisture in the electrical cabinet, and keep the environment dry.

2. Non-toxic and odorless. This electrical panels silica gel complies with RoHS standards, and it does not release harmful substances. Therefore, it is suitable for closed electrical equipment environments.

3. High temperature resistance (It can withstand short-term high temperatures of 200℃). It still maintains stable performance under humid or large temperature difference conditions.

4. You can choose a desiccant with a color indication function, to remind you to replace or regenerate in time.

5. Long-term protection. Reusable. It can reduce long-term use costs.

Applications

Application Area	Panel Types	Protection Benefits of Electrical Panels Silica gel
Power Distribution	LV/HV Switchgear (GGD/GCK/MNS)	Prevent busbar/component oxidation.
	Distribution Cabinets (Outdoor/Basement)	Resist ambient moisture infiltration.
	Capacitor Compensation Cabinets	Avoid capacitance degradation from humidity.
Industrial Automation	PLC Control Panels	Protect PCBs from condensation shorts.
	VFD Cabinets	Maintain dry environment for IGBT modules.
	Servo Control Cabinets	Prevent encoder interface oxidation.
Power Equipment	Transformer Terminal Boxes	Keep insulation bushings dry.
	RMU Panels	Control SF6 gas moisture content.
	Substation Relay Panels	Prevent relay contact oxidation.
Renewables & Telecom	PV Inverter Enclosures	Solve dew formation from diurnal temperature difference.
	Wind Power Control Cabinets	Resist offshore salt spray corrosion.
	5G Base Station Cabinets	Prevent RF unit performance degradation.
Harsh Environments	Outdoor Junction Boxes	Integrated rain/humidity protection
	Marine Electrical Panels	Saltwater corrosion-resistant design
	Cold Chain Control Panels	Continuous dehumidification at low temperature

Recommended Configurations

Small Panels (<0.5m³): 100g hanging bags
Medium Cabinets (0.5-2m³): 2×200g bags (diagonal placement)
Large Switchgear (>2m³): 500g canisters + humidity monitors

Note: For coastal areas with RH>80%, recommend electrical panels silica gel with 30% higher dosage and shorter replacement cycles.

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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.

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.
Service	Accept wholesale, OEM, ODM orders; Provide custom solutions.
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)
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)
Indicator Function	You can choose silica gel with color indication function, to achieve a more convenient reminder function.
Main Components	silicon dioxide (SiO₂); Content ≥ 98%
Appearance	granular, spherical, powdered, beads crystals, sand, etc.
Colors	transparent, translucent, white, blue, or orange
Particle Size	1-3mm, 2-4mm, 3-5mm; or custom sizes
Bulk Density	approximately 700-800 kg/m³
Surface Area	700-800 m²/g
Pore Volume	0.4-0.8 cm³/g
Applicable Humidity Level	20%-90% RH
Operating Temperature Range	-40 ℃ to 200 ℃ (long-term stability)
Maximum Moisture Absorption Rate	30%-40% of its own weight
Physical Properties	stable internal structure. no expansion or liquefaction. not easily crushed. dust-free.
pH	4-8
Chemical Properties	chemically inert; It will not chemically react with the inside products.
Human-Friendly Feature	odorless and non-toxic. It meets food grade standards.
Environmentally Friendly Feature	using packaging paper and materials that are biodegradable within two years. It can be discarded for use as fertilizer.
Regeneration Temperature	80℃-150 ℃ ( It can be reused after heating for 2-4 hours.)
Packaging Material	breathable material with strong sealing properties. You can customize packaging materials according to your needs.
Printing	You can custom printed text, pictures, logo for better brand images.
Packaging Capacity	1g, 2g, 5g, 10g, 50g, 100g, 500g, 1000g; or custom capacity
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.