Does a distributor SDS replace the mill SDS?
Only if the relabel party takes the same composition and says so in writing. Otherwise request both and mark the gap.
Application to RFQ
Polyurethane resin suppliers mapped from the process, not the brochure
Use the application to write purchase fields for polyurethane resin suppliers. Suitability, pot life and mechanical performance are not claimed here. Suppliers still confirm the quoted grade, documents and transport class.
- 01 Process fields
- 02 Document fields
- 03 Lane limits
Application matrix: what to write before contacting polyurethane resin suppliers
Each row is a buyer checklist. Public product-family references such as SpecialChem can frame questions; they do not verify the quoted lot. Trade-off: a clear casting resin is not interchangeable with a thermoplastic pellet even when both are sold under the same family name.
| Use context | Specification questions | Document questions | Open limits |
|---|---|---|---|
| Clear potting or casting | Color, viscosity, mix ratio if two-component, hardness after cure | SDS, TDS, CoA method, TSCA status for US supply | Clarity in a thin plaque does not prove yellowing after heat aging |
| Thermoplastic extrusion or molding | Melt flow, hardness, density, moisture, pellet cut | SDS storage range, CoA on melt flow and moisture | A nearby hardness grade is not a drop-in without buyer testing |
| Coatings and adhesives | Solids content, NCO or OH value, solvent versus waterborne carrier | Exact-product SDS, UN number, DOT/IMDG class | Higher solids can raise viscosity and change spray equipment needs |
| Distribution and relabel | Pack size, labeling language, recurring forecast versus trial lot | TDS viscosity, CoA pass-through language, transport classification | Site restrictions can reject IBC deliveries even when the chemistry matches |
Selection factors, not a winner list: aromatic versus aliphatic systems; thermoset liquids versus TPU pellets; concentrate drums versus ready-to-feed totes. Compare only after the product basis is locked. Return to inquiry options.
Documents that still have to be asked per polyurethane resin supplier
Is REACH relevant for a US destination?
REACH status may still matter for the producing region. Ask the factory; do not assume it transfers as a US exemption.
Can moisture or trace metals be skipped?
Skip them when the process does not use those limits. Forcing unused specs inflates cost without improving comparability.
Who decides transport?
The factory proposes classification; the carrier and destination rules decide movement. This page is not a shipping instruction.
Convert the application into a supplier RFQ
State whether the line is clear potting, TPU conversion, coating or relabel, then quantity, pack and destination. Currency budget can stay blank.