The products

Head cement and floatant

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Head cement Which makes the closure the product Glass rather than PET The dropper is the dispensing method With the usual elastomer problem Which is a decant, with everything that implies Floatant Which makes it a small wide pot And it has to survive a pocket Powder floatants are the dry cousin References

43 dropper assemblies. Head cement is applied by the drop and nothing else will do.

Head cement

A solvent-borne lacquer brushed or dropped onto the thread wraps at the head of a fly to seal them. Thin, fast-drying, and it skins over if the bottle is left open.

Which makes the closure the product

A cement that thickened in the bottle is useless, and the cause is evaporation through a poor seal. 9 liners and sealing discs here and 14 phenolic closures.

Glass rather than PET

84 glass containers, 63 of them Boston rounds. A solvent in PET softens or clouds it, and the archetype's resin chart warning applies even though the archetype was written for dry parts.

The dropper is the dispensing method

43 assemblies plus 6 tips and caps and 3 euro droppers. A drop on a head is the dose, and a brush in a cap is the traditional alternative.

With the usual elastomer problem

A solvent attacks a dropper bulb. The bulb perishes before the cement runs out, which is why many tyers decant into a smaller bottle and keep the stock sealed.

Which is a decant, with everything that implies

Our shop consumables property sets out the labelling side of moving a solvent into another container, and the miniature painting property covers the repackager question if you sell what you decant.

Floatant

A wax, gel or silicone paste that keeps a dry fly on the surface. Thick, greasy, applied with a fingertip, and used streamside rather than at a bench.

Which makes it a small wide pot

Opened with cold wet hands, often one-handed, standing in a river. The 20 dome lids on this shelf are the relevant closure and a screw cap is not.

And it has to survive a pocket

Pressure, temperature and being sat on. A floatant that leaks into a vest pocket ruins the day in a small but complete way.

Powder floatants are the dry cousin

A desiccant powder in a small shaker, used to dry a fly that has been caught on. Small, wide, lidded, and this shelf has 59 jars to choose from.

References

The Davis Pack Supply catalog, measured 19 October 2026. The fly tying shelf is 716 rows: 335 containers and 381 closures. 5 mL to 250 mL with a median of 59; 30 containers at 15 mL or under, 100 at 30 or under, 204 at 60 or under, and nothing above 250 mL. 165 PET, 84 glass, 62 HDPE, 24 PP. 275 bottles, 59 jars, 1 tube. 79 white, 71 clear, 61 amber, 42 blue, 24 natural, 19 black. Closures: 260 continuous thread, 43 dropper assemblies, 20 dome lids, 16 flip top, 14 phenolic, 9 liners and sealing discs, 6 specialty, 6 dropper tips and caps, 3 euro droppers.

The archetype behind this shelf is store-small-dry: 15 to 500 mL, wide mouth, PP and PET and glass, cold, solid, chunky, scooped, with "small dry parts, wide mouth to get fingers in, clear so you can see what is inside" as its stated reason. Four of the six leaves are dry sorting crafts it describes well, and the shelf does not follow it: 275 of 335 containers are bottles.

Written from 16 U.S.C. 703(a) and 50 CFR 10.13, and from the catalog as it stood on 19 October 2026. This property does not say which species are on the protected list, because that is a lookup against 50 CFR 10.13 rather than something to assert from memory. CITES, the Endangered Species Act and the Lacey Act can each reach exotic tying materials independently and none of them is read here.