For 110℃ 24h test, the following results should be considered:
1. The sag properties, requirement: ≤10mm
2. The heat storage property, requirement: the fabric has not delaminating, ,no expanding phenomena…
I wonder where you got the information only A surface should be judged. You should consider the risk the headliner maybe extrusion deformation if the foam expand. Moreover, all of the headliner can pass the test in china.
I think A conclusion cannot be given if there is expand phenomena on the foam.
At last, the headliner and the carpet are responsible by Mr. Zhu Haibo, you can communicate with him at the same time. I am responsible for seat assembly now.
For PPAP approve results: