THE INDUSTRY'S PACKAGING CHALLENGE
Chemical powders and granules look like a straightforward containment problem until combustibility enters the picture. Many fine chemical powders are combustible even when the chemical itself isn't classified as a dangerous good. The particle size and dust concentration create the ignition risk, not the hazard label. That means a material you can ship without UN certification may still need an anti-static bag, and getting that distinction wrong is the most common and most consequential error in chemical FIBC specification.
The decision that matters most is the anti-static type. A standard Type A bag in a combustible-powder application is a safety risk, and an over-specified conductive bag where the material doesn't need one is cost without benefit. The right answer depends on the material's ignition energy and whether a flammable atmosphere is present where the bag is filled and discharged.
Chemical applications are the ones we ask the most questions about before quoting.
WHAT'S TYPICALLY PACKED
Chemical industry applications India Pack supplies bags for include:
- Fine chemical powders (non-hazardous)
- Polymer granules and resin pellets
- Pigments and dyes
- Carbon black
- Silica fume and precipitated silica
- Chemical intermediates
- Masterbatch and additives
- Combustible powders (in the appropriate anti-static bag)
- Others
RECOMMENDED BAG TYPES FOR THIS INDUSTRY
Type A FIBC — for non-combustible chemicals
Standard PP woven fabric with no anti-static properties. The correct specification for non-combustible chemical materials where no flammable atmosphere is present. The lowest-cost option. Don't specify beyond this where the material genuinely doesn't require anti-static properties.
View Standard FIBC Bags
Type C FIBC (Conductive) — for combustible powders in flammable atmospheres
Type C bags are woven with conductive threads interconnected throughout the fabric. They must be grounded (earthed) during both filling and discharge to dissipate electrostatic charge safely. Type C is the correct specification for combustible powders handled where flammable solvents, gases, or vapours are present. It is the most demanding and most common ATEX FIBC requirement. Without a grounding connection, a Type C bag provides no protection.
Type D FIBC (Dissipative) — for combustible powders where grounding isn't practical
Type D bags use dissipative anti-static fabric that controls static safely without a ground connection. They suit combustible-powder applications where grounding the bag during filling and discharge isn't practical. Confirm with your HSE team whether Type C (grounded) or Type D (no grounding required) fits your facility and process.
Not sure which construction suits your customers' application? Tell us what material they're handling and how their line runs — we'll recommend the right bag.
CHOOSING THE RIGHT ANTI-STATIC TYPE
The Type A/B/C/D classification is the most safety-critical variable in chemical FIBC specification, and it's the one we work through with you first.
Type A
No anti-static protection. Non-combustible materials only, no flammable atmosphere.
Type B
Fabric with low breakdown voltage; reduces incendiary spark risk but does not protect against ignition of flammable vapours. For combustible powders with no flammable solvents or gases present.
Type C
Full static dissipation when grounded. The standard for combustible powders in flammable atmospheres. Requires a documented grounding connection during filling and discharge.
Type D
Static dissipation without grounding. For combustible powders where consistent grounding isn't practical.
The correct type depends on the material's minimum ignition energy (MIE) and whether a flammable atmosphere is present. This is a safety-engineering determination, not just a procurement one. Confirm it with your HSE team, and an ATEX specialist where needed, before ordering.
INDUSTRY-SPECIFIC REQUIREMENTS
Combustibility check comes before bag selection
The first question for any chemical powder is whether it's combustible, and whether a flammable atmosphere is present where it's handled. This determines the anti-static type and is independent of whether the material is DG-classified for transport. Confirm the material's combustibility data before specifying.
Grounding requirement for Type C bags
Type C bags require a documented grounding (earthing) connection during both filling and discharge. Without grounding, the conductive threads can't dissipate static charge, and the bag offers no more protection than a standard one. If your operations can't consistently maintain grounding, Type D is the correct specification rather than Type C misapplied.
ATEX environment confirmation
If filling or discharge takes place in an ATEX-classified zone, the bag specification must suit that zone classification. Type C (when grounded) and Type D are appropriate for flammable atmospheres; Type A and Type B are not. This confirmation should come from your facility's ATEX documentation, not from the bag supplier.
Purity and contamination control
Many chemical applications need the bag to protect product purity. A liner may be required to prevent contamination or moisture ingress, and the liner material must be compatible with the chemical. Confirm liner compatibility for reactive materials at the specification stage.
HOW INDIA PACK SERVES THE CHEMICAL INDUSTRY
Chemical applications are the ones we ask the most questions about before quoting, because a wrong specification isn't a substandard product, it's a safety risk. We confirm combustibility, anti-static type, ATEX relevance, and liner compatibility before recommending a bag or engaging a factory.
Our network includes facilities producing Type C conductive FIBCs to the construction standards these applications require. We don't recommend a bag type until the safety-critical variables are confirmed.
Supplier certifications relevant to your order — Type C construction certification, SWL test certificates, plus additional documentation on request — are obtained and documented for you as part of every shipment. The factories supplying your order build to ISO 21898; it is not a certification India Pack itself holds.
See how procurement teams across construction and industrial sectors have worked with India Pack: Success Stories
