Foam
Polyurethane and memory foam from Guangdong Yonghua Polymer Materials, the group’s foam plant, certified to ISO 9001:2015 for foam manufacture.
Materials & Testing
Material documents, matched to your market
Our foam comes from the group’s own ISO 9001-certified foam plant and is tested by independent labs. Documents are listed by material, scope and date — tell us your model and market and we confirm which apply.
Document list
What we can share today
Test results apply to the samples tested. We match documents to a model on request and share copies under the terms agreed with you.
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Certificate
ISO 9001:2015 quality management
No. 116606 -
Test report
Flexible polyurethane foam
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Test report
Flexible polyurethane foam
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Test report
REACH SVHC screening
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Test report
REACH Annex XVII, entry 20 — organotin
Why foam matters
A compression sofa is only as good as its foam
Compression packing squeezes every cushion for weeks. The foam tests above include the properties that decide whether it comes back to shape.
- 75 % compression setHow much height foam loses after being held compressed — the key figure for compression-packed furniture.
- ResilienceHow quickly and fully the foam springs back.
- Fatigue under repeated loadHardness lost after constant repeated pressing, as in daily sitting.
- Formaldehyde, pH and odourTested to GB 18401-2010 for products in contact with people.
Recovery after storage
How is recovery checked on a finished sofa?
Choose a reference unit and mark the seat centre, front corners and any sculpted arm before compression. Record the date the bag is sealed, the date it is opened and the room conditions during recovery. At agreed intervals, measure the same landmarks and photograph the seams from the same angle, so a corner can be compared with the centre.
A foam test report and a timed trial on the finished sofa answer different questions. Ask for both when the order depends on long packed storage, and check that the trial used the production cover, fold direction, inner bag and the storage you expect.
Evidence to attach
- Approved drawing and material reference
- Finished-unit recovery trial
- Matched photos with elapsed times
Read the buyer guides
Free templates
Materials
What goes into a Hongkong Yonghua sofa
Bouclé
Velvet
Plush
Velvet
Suede-look
Fabrics
Each model has standard fabric codes; swatches are sent on request. For OEM orders you can specify or supply your own fabric.
Frames and fittings
Frame material, legs and fittings are specified per model in the quotation, together with any documents available for them.
Your market
Tell us which rules apply where you sell
Requirements differ by country and by retailer. Name the ones you need and we confirm, model by model, which documents exist and which tests would have to be arranged.
- EU — REACH
- UK — furniture fire safety
- US — California TB 117-2013
- US — formaldehyde in wood parts
- Australia — AS/NZS
- Your retailer’s own standard
- 01
Send model and market
The YH number, the destination country and any retailer standard.
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We match documents
Which reports and certificates cover the materials in that model.
- 03
Fill any gaps
Where a test is missing, we say so and quote arranging it with a lab.
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Receive copies
Copies are shared for your sourcing review under agreed terms.
Request a quote
Which documents do you need?
Send the model number and your market — we reply with the documents that apply.
- Add a YH model number if you have one
- Choose “Not decided” if quantity is still open
- Ask for a sample or a packing sheet