Description: PVA Sponge Roller are made by polyvinyl alcohol (PVA) material,it can made with or without PVC tube, it's normally used on PCB wet process, glass washing industrial and other field. PVA roller is widely used due to it's excellent water absorbing performance. It can absorb water up to 8 times of itself weight,but PVA sponge can't resist acid and alkali. It will be hard and smooth when it's on dry condition, but will become soft when soak water. Parameter for PVA Roller ID 10mm,16mm,20mm,25mm ,32mm or other size OD Any OD is possible according to customer Tube Material PVC Ship condition Normally shipped on dry condition PVA Brush Roller packing: Normally the PVA sponge roller is individual packed by PE bag, then packed int…