custom plastic tubs
Translate fill, line or shipping use into purchase requirements for a custom plastic tubs brief. A dairy deli cup is a food-contact object; an industrial paste tub is a handling object. Those two quotes should not share one lid-diameter column.
Write the intended fill, whether the tub sees a hot-fill or an ambient salad line, and whether a tamper-evident band is required. Lid snap interference sized for a dry snack does not automatically hold when a wet protein sits inside. Name the food-contact file and the migration testing path so each factory quotes the same resin lot. A lifestyle photo of a filled cup cannot replace a cavity drawing.
If the tub holds an oil-phase cream, say whether a chemical-compatibility note is required for the pigment and the lid liner. Do not copy a site-wide certificate onto the brief. Wide-mouth 89 mm and 110 mm finishes belong on their own lines. Destination packing for a cosmetics contract packer may add a partition cell or a named master shipper.
If a commissary nests 32 oz or 1 gal tubs, record nested height, lid-on versus lid-off freight, and whether a worker or a denester must pick the tub. Nested freight and lid-on freight change cube and the first-run carton die. Pressure sensitive adhesive language belongs to labels applied onto the tub, not to an in-mold label film, unless you are buying both families.
A US destination state changes pallet pattern and who pays inland freight. Ask each factory to list packing and freight separately from the piece price. Required product documents belong on the RFQ; we do not invent a certificate number for the site. If the fill is a paste or powder, a gasket lid may need a named water vapor transmission rate. Edge crush test and burst strength belong on the shipper line, not on the tub cell.
Trade-off we keep visible
Mono-material recyclability versus barrier performance still applies on plastic tubs: a PP-only body can improve recycling reporting, while an EVOH multilayer path may still be needed when oxygen transmission rate through the wall is the duty. We present both sides and leave the choice on the brief. Digital print vs flexo still applies on label panels: digital can carry a unique SKU without a plate, while conventional flexographic printing usually holds a large solid cheaper once the plate is paid. Gravure printing is a third path only when the buyer actually wants that process. Post-consumer recycled content can change stiffness and lid snap; ask for a batch sheet before treating PCR as a drop-in for virgin PP.
A custom plastic tubs brief still needs destination, pack-out and document constraints written before factories reply. A west-coast distribution center and an east-coast commissary are not the same delivery scope. Sample tubs, molds and plate charges stay outside the piece price until listed. Quantity should be written as pieces or cartons per artwork, for example 10,000 tubs per SKU, not as an unlabeled bulk figure. This desk does not invent a certificate number, a reply clock or a savings percentage. ISO ICS 55.020, observed 2026-09-20, supplies unit vocabulary only. Packhelp quote pages observed 2026-09-15 are a process reference, not this site's factory network.
Return to inquiry options after the fill and destination are written, or send the lined-up brief from Contact.