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Soap and candle supply
All Containers›Shop by use case›Soap and candle supply›Containers›Closures and linersShop all soap and candle supply →
Containers

Closures and liners

By Dwight Davis, Founder

On this page11
Two different sealing problems on one shelf.

What is here

389 continuous thread, 27 spouted, 26 dome lids, 20 flip tops, 19 lug and twist, 14 phenolic, 13 spice caps and 11 liners and sealing discs.

The dry half wants a moisture barrier

Mica, base and dye all fail by taking up moisture. An induction seal or a good compression liner is what prevents it, and a cap with no liner is a dust cover.

The liquid half wants chemical resistance

Concentrated fragrance attacks liners and adhesives. The liner here is in continuous contact with an aggressive material for however long the bottle sits on a customer's shelf.

Which are different specifications

A liner chosen for moisture is not automatically a liner chosen for solvent resistance. On a shelf serving both halves, specifying per product rather than per supplier is the point.

Phenolic for the aggressive liquids

14 of them. Thermoset rather than thermoplastic and historically the choice where a solvent is involved, which for concentrated fragrance is a real consideration.

Necks worth standardising on

24-410 at 232 for the bottles and 89-400 at 161 and 70-400 at 122 for the jars. Three finishes cover most of a supply range across both halves.

And that simplifies everything downstream

Fewer liners to stock, fewer label sizes, fewer fitments. For a business whose cost is handling rather than material, that is where the margin actually comes from.

Test the closed package, warm

Filled, sealed, on its side, for weeks. For the dry half add somewhere humid. Every failure in this category is slow and invisible until it is at a customer's bench.

Dome lids are display, not storage

26 of them. They finish a jar nicely and they are not a sealing closure, which makes them wrong for a hygroscopic powder and fine for something bought and used the same week.

Buy the liner deliberately

Most closures arrive with whatever liner the supplier fits by default. For a shelf serving both a moisture problem and a solvent problem, accepting the default is accepting a decision somebody else made without knowing your contents.

References

The Davis Pack Supply catalog, measured 18 October 2026. The soap and candle supply shelf is 1,361 rows: 812 containers and 549 closures, the largest in the library, derived from three archetypes across five leaves. 482 PET, 159 HDPE, 100 glass and 71 PP, from 15 to 2,000 mL with a median of 225. The closures include 13 spice caps, which is the sifter fitment a jar of mica needs.
Written from 21 CFR 73.2496 and 701.20, and from the catalog as it stood on 18 October 2026. Whether a given color additive is approved for a given use is a question about that additive and that use, and the answer is in the regulation rather than in a supplier description; nothing here substitutes for checking it.