01 / PU cushions
Shape, support and cover fit.
Consider PU when the main task is the cushion shape and support within the seat. Density and ILD are separate selection fields; the base, thickness and cover remain part of the review.
Furniture & Seating / Foam applications
Seating foam.
PU cushions and
Memory Foam options.
Review the cushion, base and cover together. Compare PU and Memory Foam around one seating brief.
Discuss your seating
Application illustrations · Review comfort and durability with the assembled seat.
01 / Choose the cushion route
PU support cushion or
slow-recovery contact layer?
First decide whether the question is the whole cushion shape/support or a slow-recovery contact feel. Then compare whole-cushion and composite proposals in the same seat, rather than assume a layer can replace every other function.
02 / Material routes
Compare an assembled seat.
Not density alone.
Separate the part that establishes the cushion shape and support from any proposed contact layer. A layered concept introduces a second material and interface; it needs its own assembled sample, not the approval of one loose piece.
| Seating decision | Material direction | Why consider it / what changes the sample |
|---|---|---|
| Whole-cushion shape and support | PU route | PU selection includes density, ILD and formed-cushion geometry. Start here when the unresolved question is the main cushion shape/support. Compare the proposed grade and shape in the actual base and cover rather than choose by density alone. |
| Slow-recovery contact response | Memory Foam route | Slow recovery is the reason to add Memory Foam to the comparison. Identify whether it is the whole cushion or a contact layer; the material name alone does not establish the supporting structure or an acceptable seat response. |
| Whole cushion or layered construction | PU / Memory Foam | A contact layer and a support cushion have different jobs in the proposed construction. Changing layer thickness or arrangement changes the sample being assessed. Keep the same base, cover and contact zones and compare each complete configuration separately. |
03 / Prepare the seating sample
What the sample
can and cannot establish.
- Review the proposed cushion/layer arrangement in the actual base and cover.
- Observe shape, installation and the stated seating-response question in that configuration.
- Compare density/ILD or recovery records only with the relevant method and sample conditions.
- A sample observation is not a service-life, pressure-relief or medical-performance result.
04 / Resource guides
From cushion concept to seating sample.
Useful questions
Before you
choose a cushion.
How should PU and Memory Foam cushions be compared?
Use the same seat geometry, base, cover and acceptance task. Preserve each route’s grade and method questions. The family names do not establish a comfort or durability ranking.
Does density alone determine how a cushion performs?
No. Review density alongside the applicable ILD or response record, thickness, geometry and installed seat context. Do not infer comfort or life from density alone.
What starts a seating cushion project?
Provide the seat/base drawing, cover, contact zones, thickness envelope, specification questions and intended sample review conditions.