Necks, liners and the seal
On this page9
The necks on this shelf
38-400 at 80, 24-410 at 79, 70-400 at 64, 33-400 at 51, 58-400 at 41 and 53-400 at 40. Six finishes carry most of the shelf between them.
Why staying on a populated finish matters more here
This craft needs the neck to support three things at once: a chemically compatible liner, possibly a child resistant closure, and possibly an applicator. A finish with two closures available cannot do all three.
The liner is a separate material decision
The resin chart tells you about the bottle. The liner inside the cap is usually a different material, it is in continuous contact with the contents, and it is where a solvent attack shows up first.
The shelf carries 9 liners and sealing discs
Which is a small number, and it means liner choice is a conversation rather than a pick from a long list. It is worth having that conversation before the container order rather than after.
Buttress finishes
7 buttress closures here. A buttress thread is a heavier profile used on industrial containers, and where one appears it generally means the container is built for something aggressive.
Dome lids and tub lids
20 dome lids and 6 round tub lids, which go with the 16 round tubs. A tub lid seals by interference rather than by thread, so the sealing surface is the rim of the tub and there is no liner at all.
Test the closed package, warm
A compatibility test on the bottle alone misses the liner, the thread and the headspace. Fill it, close it, leave it somewhere warm on its side for weeks, and then open it.
And test it again after any change
A new liner, a new cap color, a different bottle supplier or a reformulation all change the system. This is the craft where that is not an excess of caution.