Yellow powdery substance in old couch cushions. A few people told me that it is broken down foam but that doesn't seem to make much sense because of the poly fill. Is
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Looms & Linens Lumbar Pillow Form Insert Boudoir Pillow Sham Insert Soft Poly Filling Lumbar Pillow Stuffing Back Support Home Office Decorative White Pillow Insert Stuffing 1 Piece 12x16 Pillow Form: Cushions:
How to Fix Sagging Couch Cushions - YouTube
A Pair of Aus Made Cotton Cover/Polyester Filling Euro Square Cushion Pillow Inserts