PET preform molds are heavy, precise tools. A jar preform mold weighs tons. Its cavities are polished, its neck rings delicate, its leader pins exact. Bad packing ruins all of that in one trip.
Clean and Protect the Mold First
Clean the mold fully before packing. Spray cavities and cores with rust-preventive oil. Coat moving parts with grease. Cap the leader pins and plug the sprue.
Any bare precision surface can rust or scratch in transit. Minutes of protection now prevent costly rework later.
Lock the Mold for Transport
Fit locking strips so the halves cannot shift or open. A three-plate mold needs at least two, matched to the design. Plug every water fitting. Bag and label loose parts.
Buyers forget the fittings. A loose fitting punches through the wrap and dents a cavity. We check every plug before the case closes.
Secure the Mold in a Strong Wooden Case
Use a wooden case sized to fit snugly. Bolt or strap the mold to the base. Fill gaps with foam or timber bracing. Wrap the mold in film against dust and moisture.
Add desiccant bags for sea freight. A container at sea sits in humidity for weeks. Mark the case with the mold name, weight, and handling marks.
Include Documentation and Spares
Ship the papers with the mold. Include assembly drawings, the water line layout, the spare parts list, and the manual. Add common wear parts, labeled with the vendor name.
Customs holds molds that arrive without a packing list. We tape one inside the lid and one outside. Good packing takes a little time. Fixing a damaged mold takes far longer.