Requirement lock
We restate the buyer brief as chemical name, CAS number, grade, form, melt flow or thickness, moisture, quantity unit and US destination. Missing items stay listed as open rather than filled with a typical brochure value from another plant.
Factory outreach
We send the same RFQ packet to proposed plants. We do not claim those plants are audited, authorized or exclusive to this site. A reply is a quotation, not a qualification certificate or a reserved production slot.
Same-basis comparison
Unit price is not compared until currency, net content, Incoterm, freight, sample or plaque cost and exclusions line up. Alternative melt-flow or recycled routes sit on a separate row for buyer approval.
Sample and document path
If a plaque or pellet sample is needed, define what it should confirm: identity, melt flow, appearance, moisture or packaging. Laboratory, EHS and regulatory decisions stay with qualified parties at the receiving site.
Optical, flame-rated and general-purpose polycarbonate can differ in additive packages even when the melt-flow number looks similar. If that difference matters to the process, write it as a specification question. This desk does not rank extrusion technologies or publish a preferred screw design, die, or drying recipe.