Containers

The resin chart

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The chart And the rest Most things rate Good, which is the problem PET is the trap Which is why HDPE leads this shelf Glass where the solvent is aggressive Phenolic and urea are closure materials The chart does not know your formula References

Two numbers per material, and the second one is where the surprises are.

The chart

Glass rates High, 5 of 5, from -100 to 300F. Polypropylene Good, 4 of 5, 0 to 240F. HDPE Good, 4 of 5, -100 to 190F. PET Good, 4 of 5, -40 to 120F. LDPE Good, 4 of 5, -100 to 175F.

And the rest

PVC Good, 4 of 5, 30 to 140F. Phenolic Good, 4 of 5, -150 to 300F. Urea Good, 4 of 5, -150 to 266F. Polystyrene Semi, 2 of 5, 30 to 200F, which is the only material on the chart rated below Good.

Most things rate Good, which is the problem

Seven of the ten materials carry the same chemical resistance rating. If you shop on that column alone the chart tells you almost nothing, and the real separation is in the temperature range beside it.

PET is the trap

It is the catalog’s largest material by SKU count at 552 and it tops out at 120F. A shed in August, a closed van, a warehouse under a metal roof and any kind of warm fill all exceed that. The rating says Good; the range says no.

Which is why HDPE leads this shelf

143 of the 234 containers here are HDPE. Good chemical resistance, a range from -100 to 190F, and it is cheap, opaque and unbreakable in a workshop. For a solvent-bearing product that is the default and it deserves to be.

Glass where the solvent is aggressive

31 glass containers on this shelf. Glass is the only material rated High, it runs to 300F, and nothing you are likely to put in it will attack it. The cost is weight, breakage and a workshop floor.

Phenolic and urea are closure materials

Both rate Good and both run to the high end of the temperature range, which is why they appear on this shelf as caps rather than as containers. The shelf carries 9 phenolic closures.

The chart does not know your formula

It is a material-level rating across the whole catalog, not a compatibility test for your solvent against this bottle. It narrows the field to a handful of candidates. Testing your own product in the actual container, warm, for weeks, is what settles it.

References

The Davis Pack Supply resin chart, derived from C&P’s own published ratings across 2,150 SKUs and held as <code>material_property</code>: chemical resistance and a service temperature range per material. Glass rates High at 5 of 5 and runs -100 to 300F; PP, HDPE, PET, LDPE, PVC, phenolic and urea rate Good at 4 of 5; PS rates Semi at 2 of 5. The temperature ranges differ sharply even within the same rating, PET topping out at 120F against HDPE’s 190F and PP’s 240F.

The Davis Pack Supply catalog, measured 17 October 2026. The adhesive and finish shelf is 664 rows: 234 containers and 430 closures, derived from two packaging archetypes across six leaves, with cr_required set on every one of them.

Written from 16 CFR 1500.14(b)(8), 1500.121 and 1700.14, and from the catalog as it stood on 17 October 2026. Whether a particular product is an art material, what its chronic hazard labeling should say, and whether its closure must be child resistant are determinations about a specific formula; the first of those is a question for a toxicologist by regulation, and nothing here substitutes for one.