Closed-cell
Use when the duty needs a skin that limits water and dust pickup. The factory must still state density and thickness.
- Cell: closed
- Skin: if specified
- Density unit
- Outdoor duty note
Independent US procurement desk
silicone foam
Silicone Foam Sourcing opens the family for US plant buyers and writes a brief several factories can quote on the same line. We do not foam, slit, or stock material. A neighbouring strip, gasket, sheet or tape string is a different request unless the factory writes that they treat it as the same configuration.
Before factories can answer, the brief has to name cell structure, thickness in inches or millimetres, density in g/cc or an equivalent density unit, quantity by configuration, destination state or postal code, and the documents that travel with the lot. Shore A stays the buyer’s decision when hardness is how the receiving plant distinguishes grade.
Which silicone foam line is actually being purchased
The 2026-07-22 US product-term export recorded this family as industrial silicone foam, excluding wound dressings and foam-control additives. Pointing at a form still leaves every rating, certificate, lead time and price subject to supplier confirmation.
Open-cell
Use when compression and air passage matter more than a sealed skin. Do not treat it as a closed-cell substitute without a written swap.
- Cell: open
- Compression ask
- Shore A if used
- Medium exposure
Sheet or strip
Sheet, roll and strip are packing and cut forms. Width and length belong on the request when they change the invoice line.
- Sheet size
- Strip width
- Roll length
- Die-cut later
Adhesive-backed
Adhesive is a second material. Ask whether the quoted price includes liner, adhesive type and temperature on that layer.
- Adhesive present
- Liner type
- Peel note
- Separate price line
Axes the factory fills, not numbers this desk reprints
Observed family pages talk in axes. The cells below are questions. They are not published hardness, temperature or density figures for any option on this site.
| Thermal | Chemical | Mechanical | Compliance |
|---|---|---|---|
| Service temperature in °F or °C with the medium | Oil, ozone or cleaning-fluid exposure named by the buyer | Thickness in inches or millimetres | REACH SVHC statement if the receiving plant files it |
| Published figure and the standard used to state it | Food-contact only when the duty names FDA 21 CFR 177 | Density in g/cc or the equivalent density unit | RoHS only for electrical-adjacent assemblies |
| Continuous versus intermittent exposure | Adhesive-layer chemistry if a liner is quoted | Cell structure and Shore A if hardness is used | Lot file, not a plant ISO 9001 letter used as a stand-in |
What stays on the buyer’s side of the brief
Thickness is a buyer field
Factories will silently pick a catalogue default if thickness is written as “standard”. State inches or millimetres. If the drawing uses both, write both and say which governs incoming inspection.
Density is how two quotes stay comparable
g/cc, pcf or kg/m³ are different units. Name the unit the receiving plant uses. A cheaper-looking line on a different density is a different good even when the family name matches.
Cell structure is not a marketing finish
Closed-cell and open-cell foam are not interchangeable skins. If the factory proposes a swap, rewrite the request. Do not accept a “close enough” verbal change.
Files belong to a quoted line
These short names are asks sent to a named supplier. They are not badges Silicone Foam Sourcing earned. A plant certificate does not replace a lot test on the quoted thickness and density.
REACH
SVHC statement on the quoted foam if the duty requires it.
RoHS
Only when the receiving plant files electrical-adjacent goods.
FDA 21 CFR 177
Only when the buyer named a food-contact duty and a grade plus lot.
ISO 9001
Supplier system file; not a substitute for the dimensional page.
UL 94
Ask only if the enclosure duty names a flame rating and thickness.
ASTM method
Method and condition for density, compression set or hardness if used.
Where buyers usually start a brief
These uses describe purchase questions. They are not promised results for a finished assembly.
Procurement scenario, not a customer review: a US enclosure buyer sent two factory prices for the same family name. One line used closed-cell foam at a stated 0.25 in thickness; the other used an open-cell leftover lot with no density unit. After the brief asked both plants to fill thickness, density in g/cc, cell structure and Incoterms, only one reply could sit next to the drawing.
Send the silicone foam brief as you have it
Missing fields stay visible. This desk does not fill Shore A, density or destination for you. Comparison is of total procurement cost on the same quantity, packing and document set, not a percentage against an unnamed market price.
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