Stock-room and rack protection
One 0.5kg bag covers a far larger air volume than a sachet, which is why store rooms and spare-parts racks buy this size rather than packets.
0.5kg silica gel bags
0.5 kg silica gel bags, quoted by the bag and shipped by the carton.
Half-kilo silica gel bags for warehouse, crate, and heavy-carton moisture control. Choose white non-indicating gel or colour-changing indicating gel, in a breathable non-woven or paper bag, and take 100 bags or a pallet - there is no minimum order.
For buyers searching 0.5kg silica gel bags, 500g silica gel bags, or a bulk industrial silica gel bag supplier who need a unit price, a bag material, and the documents before they can raise a purchase order.
Who buys silica gel by the 0.5kg bag
Product fit, the details we need to quote, the documents that ship with an order, and how to place one.
Heavy cartons and crates
Machinery, spares, and dense export crates need a bag rather than a packet. The bag sits loose in the crate and is removed on arrival.
Distributors and resellers
Buyers who resell into their own market take 0.5kg bags in carton quantities and quote their own customers from there.
0.5kg silica gel bag specification
The figures below are the published product specification. Anything application-specific - bag material, print, or a tighter humidity target - is confirmed in writing before an order is accepted.
MOQNo minimum order quantity. Trial and sample quantities are supplied in every format, and the rate improves with volume.
MaterialAmorphous silicon dioxide (SiO₂), CAS 7631-86-9
Unit weight500 g (0.5 kg) per bag; 1 kg and 2 kg also supplied
Gel optionsWhite non-indicating, or orange indicating that changes colour as it saturates
Bag materialBreathable non-woven or paper, selected for the application
Adsorption capacityUp to ~33% of own weight in water vapour (25 °C, 90% RH)
Shelf life24-36 months in the sealed factory pouch
Minimum orderNone. Trial and sample quantities are supplied; price scales with volume
DocumentsSDS, TDS and DMF-free statement published; batch COA issued per order
CertificationISO 9001:2015 (QMEC/IAS-CB, certificate 9101225)
What to settle before you raise the PO
Four decisions change the quote. Sending them together is the difference between a price in a day and three rounds of email.
White or indicating
White non-indicating is the default and the cheaper option. Indicating gel changes colour as it saturates, so a warehouse team can read moisture state without instruments - worth it when bags are inspected rather than replaced on a schedule.
Non-woven or paper
Non-woven is tougher and handles rough crates and repeated handling. Paper is cheaper and adequate inside a sealed carton. State which, or describe the packing and we will recommend one.
Bags per order, and repeat interval
There is no minimum, so 100 bags is a normal first order. Tell us whether it repeats monthly, quarterly, or is one-off - a repeat schedule changes the rate.
What your QA needs on file
SDS, TDS and the DMF-free statement are published and can be downloaded now. A batch COA is issued with the shipment. Food-grade and pharmaceutical certifications are not held, and any such application must be confirmed against your own compliance requirement first.
0.5kg against the sizes around it
The 0.5kg bag sits between sachets and sacks. If your air volume is larger or smaller, one of these is the better unit.
Cartons, instrument cases, single product packs
Sachet territory. Below roughly 250 g a packet is easier to place and cheaper to ship.
Heavy cartons, crates, racks, small store rooms
The unit this page quotes. Loose bag, removed on arrival, no hanging hardware.
Shipping containers on ocean freight
For a full container use hanging strips, not loose bags - they attach to the wall and stay clear of cargo.
Repackers and facility-scale programmes
Buying loose gel by the sack is cheaper per kilo if you pack your own bags.
Which gel goes in the bag
All three are silica gel. The difference is whether the bag tells you when it is spent, and what the indicator is made of - which matters for where you are shipping.
Buyer questionWhite non-indicatingOrange indicatingBlue indicating
How you know it is spentReplace on a schedule, or weigh the bagTurns from orange to green as it saturatesTurns from blue to pink as it saturates
Cobalt chlorideNot applicableCobalt-freeContains cobalt chloride - check it against your destination's rules before ordering
Typical useRoutine carton and warehouse protectionStores inspected visually, and destinations that restrict cobaltLegacy specifications that name blue gel explicitly
Relative costLowestHigher - you are paying for the visual checkHigher
How a 0.5kg bag order runs
Three steps from enquiry to dispatch. Most of the delay in a first order is deciding the bag material, which is why it is asked first.
01 Send quantity and gel type
Bags for the first order, white or indicating, and whether it repeats. There is no minimum, so a 100-bag trial is a normal starting point.
02 Confirm bag material and documents
Non-woven or paper, and which documents your QA files. SDS, TDS and the DMF-free statement can be downloaded while you decide.
03 Approve terms and dispatch
Destination and Incoterms for export, or a pickup slot for Karachi. The batch COA is issued with the shipment.
Quote needs these details
Send these five and the quote comes back in one pass rather than three.
- Number of bags for the first order, and whether it repeats
- White non-indicating or orange indicating gel
- Non-woven or paper bag
- Destination city and port, or factory pickup in Karachi
- Documents your QA needs on file - SDS, TDS, DMF-free statement, batch COA
Send a cleaner RFQ and get a faster export response.
Include product format, quantity, destination, Incoterms, private-label needs, and document requirements so the buying conversation starts with useful data.
Related procurement paths
Move from search intent into the product, export, document, or quote page that matches the buyer need.
Buyer FAQs
Short answers for search snippets and procurement teams comparing suppliers.
What is the minimum order for 0.5kg silica gel bags?
There is no minimum. A 100-bag first order is normal, and trial and sample quantities are supplied. The rate improves with volume and with a repeat schedule.
How much moisture does a 0.5kg silica gel bag absorb?
Silica gel adsorbs up to about 33% of its own weight in water vapour at 25 °C and 90% relative humidity, so a 500 g bag holds roughly 165 g of water at saturation. Real capacity depends on the humidity and temperature the bag actually sees.
Are the bags white gel or indicating gel?
Either. White non-indicating is the default. Orange indicating gel changes colour as it saturates so the bag can be read on inspection, and the orange grade supplied is cobalt-free.
Non-woven or paper bags - which should I order?
Non-woven is tougher for crates and repeated handling. Paper is cheaper and adequate inside a sealed carton. Describe the packing and we will recommend one rather than guessing.
Do you supply SDS and COA with 0.5kg bags?
Yes. The SDS, TDS and DMF-free statement are published for download, and a batch-level COA is issued with each order. Food-grade and pharmaceutical certifications are not held and must be confirmed against your application before commercial terms.
Can 0.5kg bags be used inside a shipping container?
They can sit in crates inside a container, but for the container itself hanging strips are the right unit - they attach to the wall and stay clear of the cargo. Size that separately with the container desiccant calculator.
Do you print our brand on the bag?
Printed bags are quoted separately from stock bags. Send the artwork and the annual volume with the enquiry and the print cost is included in the quotation.