The products

Light, pigment and settling

On this page11

Light And the painter wants to see the color Which is what the 205 clear containers are for Settling So the bottle has to be shakeable Dust Which bears on the labeling question too Evaporation And a decant has more surface per millilitre than the drum it came from None of this is in the statute References

The archetype marks this craft light sensitive. 143 containers answer that.

Light

Pigments fade and binders change, which is why the archetype carries light sensitive. 127 amber containers plus 16 dark amber, 143 in all, is the part of this shelf that answers it.

And the painter wants to see the color

Which is the direct conflict. An amber bottle protects the paint and hides it, and in a hobby where people choose by eye that is a real cost.

Which is what the 205 clear containers are for

Visibility, with the protection moved to the storage rather than the bottle. A clear dropper in a closed drawer is often the better pairing of the two.

Settling

Pigment separates from its medium, and the finer the pigment the worse it is. A wash left for a month is a clear liquid over a plug of color, and getting it back takes agitation rather than a shake.

So the bottle has to be shakeable

Which means headspace, a closure that will not leak when inverted, and ideally room for a mixing ball. A full bottle cannot be mixed.

Dust

Loose pigment is the one product here that is hazardous simply by being opened. A wide mouth jar with a tight lid, filled low, handled over a tray, is the difference between a pigment and a mess.

Which bears on the labeling question too

Inhalation is the obvious exposure route for a powder, and that is the kind of chronic exposure the art materials standard exists for. The product most likely to need the full label is the smallest jar on the shelf.

Evaporation

Every solvent-borne product in this group loses carrier through the closure. The liner is the barrier and it is the specification people leave off.

And a decant has more surface per millilitre than the drum it came from

Which is the arithmetic nobody does: splitting a litre into fifty bottles multiplies the sealing surface by fifty. The failure rate follows.

None of this is in the statute

It is craft, and it decides the container. The rules decide the label and the physics decides the bottle, and a supplier who only knows one of those is half a supplier.

References

The archetype behind this shelf is ind-chemical: 100 to 20,000 mL, narrow mouth, HDPE and glass, light sensitive, child resistant, poured, with "chemical resistance is the entire decision, check the resin chart first" as its stated reason. All six leaves in this group sit on it. The window is an industrial one and this craft works at 15 and 30 mL, which is why the shelf reads large for the work.

The Davis Pack Supply catalog, measured 18 October 2026. The miniature painting shelf is 1,439 rows: 793 containers and 646 closures. 5 mL to 9,464 mL with a median of 118; 41 containers at 15 mL or under, 115 at 30 mL or under, 228 at 60 or under and 411 at 120 or under. 430 PET, 133 HDPE, 133 glass, 87 PP, 9 steel. 487 bottles, 281 jars, 13 tubs and pails, 9 tins, 2 tubes. 143 amber or dark amber. Closures: 382 continuous thread, 43 dropper assemblies, 32 disc top, 31 child resistant, 27 dome lids, 26 spouted, 19 lug and twist, 17 flip top, 14 phenolic, 13 spice caps.

Written from 15 U.S.C. 1277, 16 CFR 1500.14(b)(8) and 16 CFR 1500.3(c)(6), and from the catalog as it stood on 18 October 2026. Where a requirement turns on a determination the Commission makes rather than on a fixed rule, this property says so. Nothing here is a toxicological review, which is the one thing in this area that cannot be done from a document.