Closures and liners
Updated
On this page8
The brush cap, for polish
Four in the catalog, on 18-400, 18-410, 20-400 and 28-400. The brush, the stem and the wiper are all in permanent contact with the lacquer, so this is the fitment with the hardest compatibility job in this property.
The dropper assembly, for treatments
Forty of the 186 closures on that shelf. A bulb, a glass or plastic pipette and a cap, and the bulb is the part that hardens. For a cuticle oil or a treatment applied by the drop it is the right answer.
Plain caps and phenolics, for remover
A remover is poured rather than applied from the bottle, so the closure job is sealing against an aggressive solvent. Phenolic caps are the traditional choice for exactly that and they appear on both the polish and remover shelves.
Child-resistant closures, where a threshold is crossed
We stock 71 of them across ten neck finishes. A child-resistant closure is a component that can be part of a compliant package; it is not itself a compliant package, and we will not describe one as compliant.
Because the standard tests the package
16 CFR 1700.15 asks for 85 percent effectiveness without a demonstration and 80 percent after one, and asks the packaging to keep working in actual contact with the substance and across the customary openings and closings. That is a test of your assembly.
The liner is where most failures start
Whatever the fitment, a liner that softens in the solvent ends the seal, and the product then loses solvent and thickens. Ask with the solvent and concentration named rather than asking whether something is solvent resistant.
Match the finish, and read the second number
18-400 and 18-410 share a diameter and differ in thread. That one habit prevents the most common ordering failure on these shelves, and it is the same trap the fragrance sprayers have.