Working with any chemical, whether hazardous or not, is a complex process for companies. They need to be compliant with various regulations and laws, both local and international. By definition, there are dangers associated with the storage and transportation of chemicals, such as the possibility of environmental pollution, fire hazards, and health risks. Serious fines, legal repercussions, irreversible harm to one’s reputation, and – most importantly – destructive accidents can result from noncompliance.
As a result, companies in this sector have to put safety first and follow the letter of the law at every stage of their operations. In light of these important factors, bulk bags have become a versatile and reasonably priced packaging option for managing a wide variety of chemical compounds.
Custom Bulk Bags is a leading manufacturer and supplier of bulk bags in South Africa. We produce up to 3.5 million units per year, and our products can safely hold between 500kg and two tonnes of material per bag. We offer various customisable bulk bags and can include certain optional extras that improve the usability of your packaging for chemicals.

Navigating compliance with the four types of bulk bags
Choosing the right kind of bulk bag guarantees adherence to South African and international laws governing the storage and transportation of chemicals. International standards (like IEC 61340-4-4) define these classes and specify which hazardous settings they are appropriate for. There are four types of bulk bags, which are outlined below:
- Type A – Used for non-flammable materials. These bulk bags are made of regular woven polypropylene fabric and don’t have any special electrostatic protection. They work well for moving non-flammable items in non-hazardous settings. They are forbidden for use with flammable materials or in locations where combustible dusts or vapours are present because they create an ignition danger and do not stop the accumulation of static electricity. Their use is only required by compliance in situations where there is no static hazard.
- Type B – Used for dry, flammable powders. Similar to Type A bags, Type B ones are composed of a fabric with a low breakdown voltage, usually less than 4kV. They work well with dry, combustible powders, but only in conditions where there are no flammable gases or vapours in the surrounding air. The particular kind of flammable material and the lack of a flammable environment surrounding the bag are linked to their compliance.
- Type C – Used for combustible chemicals. Type C bulk bags are commonly used for hazardous applications and flammable chemicals. They are made of conductive fabric with electrically coupled conductive threads woven throughout. These bags must be correctly grounded during all filling and discharging procedures to ensure their safe use. Type C bags safely release electrostatic charges to the earth when properly grounded, avoiding potentially dangerous sparks. They can be used with flammable compounds in flammable environments, but their compliance depends on reliable and regular grounding practices.
- Type D – Used for complete anti-static protection. Static dissipative fabrics used to make Type D FIBCs regulate surface charge and stop incendiary discharges without the need for grounding. The purpose of these bags is to safely release static energy into the air. This makes them perfect for use in dangerous situations where grounding might not be feasible or dependable. Type D bags are especially useful for complex operations since they provide the highest level of anti-static protection and guarantee compliance in various sensitive or flammable chemical handling scenarios.

Why opt for chemical bulk bags
Bulk bags offer many advantages for storing and transporting chemical compounds, which immediately leads to compliant operations. These include:
- Protection from contamination – Maintaining the purity of the chemicals is of utmost importance. The woven polypropylene used to make bulk bags can be coated or lined on the inside to provide an extremely strong defence against outside impurities, including dust, moisture, and other foreign objects. In addition to guaranteeing that the chemicals satisfy stringent quality standards upon delivery, this protective barrier helps preserve the effectiveness of chemicals.
- Anti-static properties – During filling, discharging, and handling, a lot of chemical powders and granules tend to produce static electricity. An electrostatic discharge can become an ignition source and cause explosions or fire when there are flammable dusts or fumes present. By dissipating or preventing the accumulation of static charges, specialised anti-static bulk bags greatly reduce this risk.
- Security for hazardous compounds – The sturdy design of bulk bags offers a safe containment option for a range of hazardous chemicals. These bags are thoroughly tested to withstand the pressures of handling and transit, reducing the chance of spills or leaks, when they are developed and manufactured per specified UN certification standards. When moving hazardous materials, containment is essential for safeguarding the environment, public safety, and employees.
- Cost-effective packaging solution – Bulk bags continue to be a very affordable chemical packaging option, even with their advanced safety features and protective qualities. Their capacity to store huge quantities means that fewer individual bags are needed, which lowers the cost of materials per tonne. Compared to rigid containers, their lightweight design lowers freight costs, and when they are empty, they collapse, requiring less storage space.
Being a leading provider of chemical bulk bags, we allow customers to meet exacting standards set by local and international lawmakers. We are proud of our products and our ability to produce packaging materials that adhere to the strictest safety and legal requirements, including all varieties of bulk bags (Types A, B, C, and D).
Beyond production, our team of experts can help you navigate the ordering process by providing accurate guidance on material selection, design standards, and suitable anti-static qualities. To maximise safety, ensure compliance, and streamline your chemical handling processes, we will ensure you receive the ideal bags for your needs. For more information about our bulk bags or to get advice on the ideal designs, please contact us today.
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Custom Bulk Bags is a leading South African manufacturer of woven polypropylene bags for various industries, such as mining, chemicals and food. We are a Level 2 B-BBEE manufacturer and supplier and fall under the ownership structure of Deneb Investments Limited. For more information on our products, contact sales@custombulkbags.co.za