Resin is a dense, hygroscopic, static-prone powder. How it is packed and loaded is not a formality — it decides how much you can move in one container and what you have to do with it when it arrives.

The packing options

25 kg bags are the standard export pack for PVC resin. They go on pallets, and a 20-foot container takes roughly 21–25 tonnes depending on the pallet configuration and the ceiling plank allowance.

Bulk bags (ton bags) are used for larger single consignments and for buyers running their own silo discharge arrangements.

Loose bulk is available for the very large regular contracts, where the material is discharged directly into the buyer's silo.

Which of these you get is agreed in the quotation, along with the bag marking and the pallet specification. We are not publishing a fixed figure for any of them here, because what applies to your order depends on the quantity, the destination and the packaging the port and the buyer can handle.

The questions worth asking

What is the pallet configuration? A 20-foot container holds a specific number of pallets, and different pallet standards mean different pallet counts per container. Ask for the figure rather than assuming.

What is the ceiling allowance? Containers have a maximum weight for road and rail transport that is lower than the maximum by volume. In some countries the road limit is the binding constraint.

What is the bag specification? Gauge, whether the bag is lined, and whether it is on a pallet or not. This affects your unloading equipment.

How many bags per pallet? It affects manual handling time at your warehouse more than anything else.

On the receiving side

Two things are worth planning for:

Moisture. Resin is hygroscopic. It should be stored in a dry warehouse with the pallets off the floor, and the pallets should not be stacked against an external wall. This is not a special requirement for PVC — it is true of most polymer powders — but it is where damage usually happens.

Static. Fine resin generates static during pneumatic conveying. Bonding and earthing of the unloading equipment is not optional, and it matters most in dry winter conditions.

Check on arrival

Open one bag and look before you feed the line. Then check the certificate of analysis against the batch on the bags and on the shipping documents.

The things to check physically:

  • Colour. White powder. Off-white or yellowing suggests contamination or degradation.
  • Odour. A sharp or musty smell means the resin has been somewhere hot or damp.
  • Free-flowing. The powder should pour. Caked or lumpy material has absorbed moisture and will cause feed problems.
  • Beads. Hard, translucent beads are a fusion problem that happened before you received it. They will show up as specks in the finished product and they are not recoverable.

If any of these are wrong, photograph the bag, keep the batch number and raise the claim before you feed the line. Claims need to be raised in writing within 30 days of discharge, so the clock is already running.

Send us the container type and the quantity and we will confirm the loading plan with the quotation.