Request A
Named polyethylene foam roll, thickness in mm, density in pcf, closed-cell, FOB packing listed.
Same-basis reading
polyethylene foam roll
Two polyethylene foam roll replies are comparable only when thickness, density, cell structure, roll width, length unit, packing and Incoterms match. A cheaper-looking cell on a different term is a different deal.
Request B
Same string, but a different width, a sheet yield, or a missing density method. Do not average the money figures.
Fields that must match before anyone talks about a gap
This is a comparison checklist, not an energy calculator and not a published discount. Service temperature in °F or °C explains some price gaps only when both plants answered it.
| Axis | Must be the same, or written as a change |
|---|---|
| Description | polyethylene foam roll vs sheet vs block; leftover wording such as PE foam roll still has to map to one form |
| Thickness | Inches or mm on the invoice line |
| Density | pcf or g/cc under the same method |
| Cell / XLPE | Closed-cell, open-cell, or cross linked polyethylene foam named |
| Temperature | Service temperature in °F or °C if the buyer asked for a liner |
| Money scope | Incoterms, export packing, cutting and adhesive |
If the specification moves — a new density, a new width, a new temperature window — the line must be re-quoted. Do not reuse an old unit.
Comparison situations, not savings case studies
Width changed
One plant quotes a 48 in polyethylene foam roll, the other a 60 in roll. Yield and freight change. Ask both to restate the same width or write the conversion.
Temperature unanswered
A liner brief asked for service temperature in °F. A reply that omits it is not cheaper; it is incomplete.
XLPE offered
Cross linked polyethylene foam in place of non-crosslinked PE foam is a new request. Keep the original line on file.
Send the polyethylene foam roll basis you want compared
No existing quotation is required. We compare factory wholesale quotes on the same quantity, packing and document set.