Identity locked or marked open
Chemical name, CAS number if known, polymer backbone, and internal code. If CAS is unknown, write that fact instead of guessing a neighboring resin.
SOURCING CHECKLIST
Use this page as a pre-RFQ gate. It restates specification, document, sample, and approval items that should be decided or explicitly left open. It is not a sustainability statement and it does not certify any mill.
Discuss Product Requirements
GATE ITEMS
Chemical name, CAS number if known, polymer backbone, and internal code. If CAS is unknown, write that fact instead of guessing a neighboring resin.
Pellet, pillow, film, tape, or powder; viscosity at a named temperature; melt flow; color. A tape construction is not interchangeable with a powder grind on the same line.
Kilograms or drums, sample versus production, bag or IBC, net content, and pallet notes. MOQ answers are unusable if the package is undefined.
Current SDS, TDS, CoA field list, and any TSCA, REACH, ISO, GMP, or transport statement tied to the quoted SKU. Related-grade files stay out of the comparison.
Buyers often argue whether a cheaper polyolefin hot melt can replace an EVA grade, or whether a film can replace a coated tape. Those are process decisions. This checklist only forces the two options onto separate quote lines with their own viscosity, substrate, and document packs. Cost is compared after that split, not before.
Another recurring dispute is whether a family SDS plus a verbal “same chemistry” claim is enough to receive material. The conservative path used here is to treat handling, storage, flash point, and UN number as unknown until the exact-product SDS arrives. That path is slower; the faster path accepts more residual risk. This desk does not choose the risk appetite.
BEFORE YOU SEND
If identity, quantity, packaging, destination, and document requests are ready, send them here. If they are not ready, list the open items in the requirement field so suppliers do not fill gaps with catalog defaults.