... ,water-proof and dust-proof,durable and strongly glued PVC spike backing mat :1) Durable ,elastic,strongly glued 2) Aging and fading ... 2) 4.0kgs/sqm with 14mm thickness and spike backing PVC mat with spike backing : Performance and future: high quality material ensure ... entrance and exit, hallway, walkway, corridor, kitchen, washroom, workplace, outdoor, elevator