Silicone
Not a fluorochemicalBase materials. Also written silicone, food grade silicone, platinum cured, polysiloxane.
A silicon and oxygen polymer, flexible and heat tolerant. Bakeware, lids, seals, baby feeding, menstrual cups, and the slip agent in a great deal of cosmetics.
Silicone is not a fluoropolymer and the two get confused constantly because both are slippery synthetics. Our rubric treats a named silicone as a named chemistry. The open question in this group is fillers in cheaper grades rather than PFAS.
What the makers actually said
Of the 226 graded products whose materials record silicone alongside a coating or finish, 97.3% name no coating chemistry anywhere in their published materials. This is a count of what companies published. It is not a statement about what any product contains.
- Named a fluoropolymer
- 2
- Named a coating that is not a fluorochemical
- 4
- Named no chemistry at all
- 220
A further 723 products record silicone with no coating or finish at all, so there is nothing for a maker to have disclosed. They are outside the split above.
Free to quote with a link. Of the 226 graded consumer products that record silicone together with a coating or finish, 97.3% name a coating chemistry anywhere in their published materials, according to PFAS Authority's October 2026 spec sheet decoder edition.
How those 949 products graded on our rubric
These are model-based estimates, not laboratory tests, scored on one public rubric. Read the spread against the categories underneath it rather than as a verdict on silicone in the abstract, because the rubric gives every category a baseline and a term concentrated in one category will carry that category’s spread with it.
Median grade 70 out of 100, across 55 categories.
| Grade | Products | Share |
|---|---|---|
| Excellent | 449 | 47.3% |
| Good | 296 | 31.2% |
| Poor | 174 | 18.3% |
| Bad | 30 | 3.2% |
Where silicone turns up
The 6 categories holding the most of it, out of 55. Each one links to the live ranking for that category, best graded first.
Best graded with silicone
One per category, best first, so the list is not five of the same thing.
- bareMinerals Original Prime Time Foundation PrimerFoundation & Primer100 · Excellent
- Grayl GeoPress Water Purifier BottleWater Filters100 · Excellent
- Klean Kanteen Double Wall Vacuum Insulated Stainless Steel Food Canister Container with Leak Proof LidLunch Boxes100 · Excellent
- Klean Kanteen Insulated TKWide CapInsulated Drink Tumblers95 · Excellent
- Klean Kanteen Water Bottle Insulated Classic Loop CapPortable Water Bottles95 · Excellent
Worst graded with silicone
One per category, worst first. A low grade here is usually something else on the product, not the term.
- Silpat Half Size Baking MatParchment Paper & Baking Liners10 · Bad
- Tescoma Delicia SiliconPRIME Macaron Pan, 39 x 0.5 x 27cm - OrangeSilicone Baking Molds15 · Bad
- Reynolds Cookie Baking Sheets Parchment Paper Non-Stick 22 SheetsBakeware15 · Bad
- Master Forge Rectangular Grill MatGrill & Oven Mats15 · Bad
- Cuisinart 36-in Silicone-Coated MatSilicone Cutting & Prep Boards15 · Bad
Decode a whole listing instead
A product usually names several of these at once, and the one that matters is rarely the one in the title. Paste the full materials line into the decoder and it will pick out every term it recognises, the most open-ended first.
Other base materials
- Stainless steel
- Cast iron
- Enamel or porcelain
- Glass
- Anodized aluminium
- Titanium
- Copper
- Bamboo
- Cotton
- Wool
- Polyester
- Nylon
- Polyurethane and TPU
- Acrylic
- Rubber or latex
- Polyethylene or polypropylene
- Moulded fibre or bioplastic
Edition 2026-10-08, read from 11,337 graded products carrying a material string, and frozen at that date. A term is matched against the material and construction string recorded for each product, written from its published materials, specification and ingredient list rather than from a laboratory test. Products count under every term they match, so the totals across terms overlap. Found something wrong? Tell us.