Silicone Rubber Sourcing
Silicone rubber sheet and molding compound inquiry samples on a specification table

Independent sourcing desk · US buyers

silicone rubber

Silicone Rubber Sourcing is an independent procurement partner. We do not manufacture, stock, or publish a price list. A silicone rubber brief starts with the form you actually need, then Shore A or Shore D hardness, quantity by configuration, and the destination plant.

Neighbouring wording on this cluster — liquid silicone rubber, silicone rubber bands, silicone rubber sheet — is not treated as five SKUs. Each string still has to name one request so two factories fill the same gaps.

Request factory quotes Compare inquiry options

Which silicone rubber family is on the request?

Purchasing requirements that separate this family from a neighbouring silicone rubber option live here. Point at one form. Ratings, certificates, lead time and price stay subject to supplier confirmation.

Sheet stock

Calendered or molded sheet. Thickness in inches or millimetres belongs on the line, not “standard.”

Tags: HTV · sheet · gasket stock · pad

Compare grades

Molding compound

High-consistency or liquid silicone rubber for compression, transfer or injection. Cure system is a supplier question, not a desk default.

Tags: HCR · LSR · peroxide · platinum

Compare grades

Hardness window

Softer versus harder inquiry options. Shore A and Shore D are not interchangeable. Compression set stays a factory test, not a reprint.

Tags: Shore A · Shore D · durometer

Request datasheet

Color-matched

A color chip or RAL/Pantone target is a request, not a stocked lot. Food-contact or medical files attach to a named grade, not to a color name.

Tags: pigment · translucence · FDA file if specified

Request datasheet

What a factory has to answer before two prices mean the same thing

The buyer still decides the hardness window, the form, and which documents travel with the lot. This desk only lines the questions up. No figure below is a published rating for any option on this site.

Axis the request must name Sheet stock inquiry option Molding compound inquiry option
Form the factory should quote Sheet, roll or cut pad — thickness in in or mm HCR or liquid silicone rubber — process named
Shore A or Shore D hardness Buyer range; factory cites the method and specimen Buyer range; do not mix A and D on one line
Density in g/cc Ask only when it distinguishes grade Ask when filled vs unfilled is in doubt
Service temperature in °F or °C With the medium; not a generic “high temp” With the medium; not a generic “high temp”
Grade designation and ASTM Named standard, e.g. ASTM D2000 callout if used Named standard plus cure system if the buyer specified it
Inside the price vs billed later Sheet size, trim, pallet wrap — factory must say Drums, pails, catalyst kit — factory must say
Calipers on a silicone rubber sheet edge

Name the form before anyone talks about money

A complete silicone rubber request states quantity against each configuration, destination, and whether a sample must be approved before the production lot. Leave the form blank and each supplier silently picks a default that may not match the drawing.

Factory quotation pages lined against a written request

Documents belong to a line, not to this desk

REACH, RoHS, FDA 21 CFR 177, USP Class VI or ISO 10993 files are supplier evidence for a named grade and lot. A plant ISO 9001 certificate does not stand in for a lot test. This site does not issue material certificates.

Pallet of wrapped silicone rubber sheets ready for export packing questions

Compare total procurement cost, not a unit teaser

Incoterms, packing and the document set sit next to the money figure. This desk does not recast a cheaper-looking number on a different Incoterm as a market percentage. See how a request is issued.

Files to request from a named factory

These names are check items. They are not badges of Silicone Rubber Sourcing.

Where buyers usually take the brief next

Procurement check examples

These are written check situations, not customer testimonials, savings claims or named endorsements.

Situation: two offers both say “70 Shore” but one cites Shore A and one cites Shore D. Action: send both back until the scale, specimen and method sit on the same line.


Check example · hardness scale

Situation: a plant ISO 9001 PDF arrives with no grade name. Action: ask for the lot report that covers the quoted silicone rubber configuration, then keep the plant PDF as background only.


Check example · document scope

Situation: a lower unit number uses EXW while the request asked for CIP to a US plant. Action: compare total procurement cost on the same Incoterms, packing and document set.


Check example · cost basis

Send the silicone rubber brief as you have it

Missing fields stay visible. We do not invent a hardness, a food-contact conclusion, or a delivery clock. Eligibility for FREE sourcing support and any first-order support up to 3% applies to qualified business buyers and is confirmed after we review your product, quantity, destination, and sourcing requirements.

Review Specifications Read the request checklist