30 ml Bottles: One Size, Several Packs

At 30 ml the pack is a sample or a serum, and the choice is between a dropper neck and a screw cap. The body is the same; the neck decides which closure can be fitted.

Below: what each application needs, and the neck it is moulded with.

Common to Every Pack at This Size

At 30 ml the shoulder carries the load. Below 0.55 mm a pump stroke deforms it and the pump draws air; 0.65 mm where the closure is heavy. If the pack ships filled, the carton has to support the shoulder — that is where most transit damage starts.

Brief: Capacity, product type, neck, closure and quantity. Five lines and we quote with packing data.

30 ml Serum Bottle

30 ml is the volume serum is normally sold in, and 18/410 is the neck that size is moulded on. The dropper follows from the neck, which is why the closure choice is really a neck choice. The failure we see is the pipette is too short to reach the last millilitre.

30 ml Essential Oil Bottle

30 ml is the volume essential oil is normally sold in, and 18/410 is the neck that size is moulded on. The dropper follows from the neck, which is why the closure choice is really a neck choice. The failure we see is an amber requirement missed at the sample stage.

Questions We Get on This