SilicaGel

The humidity control specialist. ChimGrup is the only manufacturer of microporous silica gel in Romania, ISO 9001 certified.

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Microporous silica gel — ChimGrup Romania

Silica gel is an amorphous silicate, a hard and translucent material made of granules 1 to 12 mm in diameter, containing a very large number of microscopic pores.

When controlling moisture, silica gel acts like a small sponge that, at a temperature of 24°C and 20% relative humidity, can absorb 35% of its weight in water. Unlike a sponge, however, it stays dry even at maximum capacity. The higher the relative humidity, the more water it absorbs, and the amount of water absorbed increases the longer the exposure.

Starting from the base grades — microporous, macroporous and beaded silica gel — we can build any humidity-control solution, based on crystal size (1–2 mm, 2–7 mm) or chemical composition (indicating silica gel with or without cobalt) in various packaging formats (5–10 g sachets, 100 g bags, 1 kg plastic boxes).

Microporous silica gel granules
Applications

Areas of use

Used in the food and pharmaceutical industries, shoe boxes, electronics or metal parts, automotive, electrical panels, shipping containers and power transformers.

Food & pharmaceutical
Shoe boxes
Electronics & metal parts
Automotive
Electrical panels
Shipping containers
Power transformers
Laboratories & desiccators
Silica gel applications ChimGrup
Quality & Environment

Quality policy

We strive to continuously improve our performance by controlling the impact of our activities at every stage of delivering our services. We provide high-quality products without harming natural resources, the environment, or the safety and health of all our stakeholders. To this end, we commit to:

  • meet the requirements of customers and other stakeholders, applying the legislation in force specific to our activity;
  • promote responsible design and the safe use of our products;
  • measure, monitor, evaluate and continuously improve our environmental and occupational health and safety performance;
  • set quality objectives for our products and services, which we measure, monitor, evaluate and maintain;
  • continuously encourage our employees in their professional development through training and a stimulating environment;
  • regularly assess and continuously improve our interfaces with employees, authorities and the community;
  • ensure the continuous growth of customer satisfaction by providing quality services;
  • prevent environmental pollution by promoting and implementing the best available techniques;
  • protect the environment by reducing emissions and the use of non-renewable natural resources;
  • ensure occupational safety and health by minimizing or isolating risks.

Cobalt chloride regulations

European Commission Directive 98/98/EC (amending 67/548/EEC : 76/769/EEC) reclassifies cobalt chloride as potentially carcinogenic by inhalation. The IARC (International Agency for Research on Cancer) classifies cobalt chloride in Group 2B — possibly carcinogenic to humans, very toxic to aquatic organisms, and may cause long-term effects.

As a result, cobalt chloride falls into the category of restricted hazardous chemical substances and preparations, whose handling requires protective equipment and conditions appropriate to the risk class (Romanian regulations OUG 200/2000, law 451/2001, HG 597/2007, HG 490/2002, HG 92/2003).

The EU REACH regulation (EC1907/2006), in force in Romania since 1 June 2007, requires manufacturers and users of hazardous chemicals to declare the traceability of hazardous products for monitoring by the Environmental Agency.

Cobalt Chloride · CAS 7646-79-9 · EINECS 231-589-4
Classification T · Carc. Cat. 2 · Risk phrase R49
Circular economy

Collection, regeneration, recovery

Saturated silica gel is not waste. ChimGrup collects used silica gel from industrial partners, puts it through a controlled thermal regeneration process that restores its original absorption properties, and returns it to the economic cycle — with a significantly smaller carbon footprint than producing new material.

Thermal reactivation of silica gel removes the absorbed water and restores the microporous structure to its original parameters. The process significantly reduces resource consumption and industrial waste, with no loss of performance in use.

  1. 01

    Collection

    We collect saturated silica gel from industrial partners under controlled transport and storage conditions.

  2. 02

    Thermal regeneration

    The heat-treatment process removes absorbed water and restores the active microporous structure.

  3. 03

    Quality control

    We check absorption parameters, granulation and compliance with the original specifications before reintroduction.

  4. 04

    Reintroduction

    The regenerated silica gel returns to the economic cycle with performance equivalent to new material.

Reduced carbon footprint

Every kilogram of regenerated silica gel is a kilogram that no longer has to be produced from raw materials. Producing new silica gel involves extracting and processing raw materials and treatment at high temperatures — energy-intensive steps with associated emissions. Thermal regeneration reuses the existing material, avoiding most of the energy and emissions embodied in production from scratch.

Avoided production emissions

Reusing the material removes the need to manufacture new silica gel, along with all the emissions of extracting and processing raw materials.

Lower reactivation energy

Regeneration only requires heating to remove the adsorbed water (120–150°C), far below the energy needed for full production from raw materials.

Less industrial waste

Collected and regenerated silica gel does not become waste, reducing landfill volume and the emissions linked to transporting and treating waste.

Products

Product range

Five standard products, customizable by granulation and packaging. For specifications outside the catalogue, contact our technical department.

PP film silica gel moisture-absorbing sachet
SAU · perforated PP

Plastic film moisture-absorbing sachet

Moisture-absorbing silica gel in a perforated PP film sachet. Designed for shoe boxes, electronics or metal parts. The sachet absorbs moisture from the air and prevents condensation or mould.

Residual moisture in active state: < 5% (standard)
Weight & packaging
Weight2g5g10g20g30g50g
Pcs / pack4000100/1600800500330200
Non-woven (TNT) silica gel moisture-absorbing sachet
SAU · TNT

Non-woven (TNT) moisture-absorbing sachet

Moisture-absorbing silica gel in a non-woven (TNT) sachet. Designed for automotive, metal parts, electrical panels, shipping containers.

Residual moisture in active state: < 5% (standard)
Weight & packaging
Weight100g200g250g500g1000g
Pcs / pack10050402010
Indicating microporous silica gel
SMIC

Indicating microporous silica gel

Moisture-absorbing silica gel with indicator (orange → green). Used in power transformers.

Residual moisture in active state: < 5% (standard)
Weight & packaging
WeightPcs / pack
1500g9
Beaded microporous silica gel 2-4 mm
SMP

Beaded microporous silica gel

Bulk beaded microporous silica gel, packed in jars. Bead size (granulation): 2–4 mm. Used in automotive compressor air filters, flower drying, etc.

Residual moisture in active state: < 5% (standard)
Weight & packaging
WeightGranulationPcs / pack
1500g2–4 mm9
Indicating beaded microporous silica gel
SMPI

Indicating beaded microporous silica gel

Indicating beaded microporous silica gel, packed in jars. Bead size (granulation): 2–4 mm. Used in laboratories and desiccators.

Residual moisture in active state: < 5% (standard)
Weight & packaging
WeightGranulationPcs / pack
1500g2–4 mm9
Service & Sales

Quote calculation factors

Our price is determined by the following factors:

  1. Quantity

    Quantity is the first factor.

  2. Category

    Classification of the silica gel into one of the product ranges:

    • SMI Microporous silica gel
    • SMA Macroporous silica gel
    • SMIC Indicating microporous silica gel
    • SMP Beaded microporous silica gel
    • SMPI Indicating beaded microporous silica gel
    • SAU Moisture-absorbing sachet
    • SIFC Cobalt-free indicating silica gel

  3. Packaging

    Our products can be packed on request in various quantities (from 2 g to 50 kg) and packaging materials (PP sachets, TNT sachets, PP jar), which will affect the final price.

  4. Silica gel granule size

    For example: 1–2 mm; 2–6.3 mm; 6.3–11.2 mm.

  5. Special orders

    Special orders not covered by our specifications — such as hygroscopicity, pH value, granulation, mechanical strength, etc. — will be carefully reviewed.

  6. Delivery

    As per the commercial offer.

  7. Payment method

    Bank transfer, cash.

  8. Storage conditions

    The warranty period is 12 months, subject to compliance with transport, storage and handling rules. Keep in the original packaging, in an environment with humidity < 30% and temperature > 10°C. Handle with care, without damaging the packaging.

  9. Complaint handling

    Please carefully review the technical usage guidelines for our products. During use, our specialists are available for any technical issue that may arise. Your complaints and suggestions will be handled with the utmost professionalism and resolved very quickly.

Standards

Standards met

Standards: DIN 55473, NFH00320, US MIL-D-3464E, BS-2540. Quality management system certified to ISO 9001.

DIN 55473 NFH00320 US MIL-D-3464E BS-2540 ISO 9001
ChimGrup standards
FAQ

Frequently asked questions

What is silica gel?
Silica gel is an amorphous silicate, a hard and translucent material made of granules 1 to 12 mm in diameter, containing a very large number of microscopic pores. At 24°C and 20% relative humidity, it can absorb 35% of its weight in water, staying dry even at maximum capacity.
What is silica gel used for?
Used in the food and pharmaceutical industries, shoe boxes, electronics or metal parts, automotive, electrical panels, shipping containers and power transformers.
What silica gel ranges does ChimGrup produce?
Seven standard ranges: SMI (microporous), SMA (macroporous), SMIC (indicating microporous), SMP (beaded microporous), SMPI (indicating beaded microporous), SAU (absorbent sachet) and SIFC (cobalt-free indicating).
What is the warranty period?
12 months, subject to compliance with transport, storage and handling rules. Keep in the original packaging, in an environment with humidity < 30% and temperature > 10°C. Handle with care, without damaging the packaging.
Which standards do ChimGrup products meet?
DIN 55473, NFH00320, US MIL-D-3464E, BS-2540. The company is ISO 9001 certified.
What granulations are available?
Standard granulations for granular silica gel: 1–2 mm, 2–6.3 mm, 6.3–11.2 mm. For beaded silica gel: 2–4 mm. Other granulations on request.
Do you collect used silica gel for regeneration?
Yes. ChimGrup collects saturated silica gel from industrial partners, puts it through a thermal regeneration process that restores its original absorption properties, and returns it to the economic cycle. The program is active with major industrial partners, including Bosch.
Do you offer cobalt-free silica gel?
Yes. The SIFC range (cobalt-free indicating silica gel) is available in compliance with EU REACH regulations (EC1907/2006). Cobalt chloride is reclassified as potentially carcinogenic by inhalation under Directive 98/98/EC.