PVA sponge (porous-constitution) sheets and blocks that, having enhanced porosity and a microfine reticulated-foam structure, demonstrate outstanding performance including absorption/retention and low-pressure-drop filtration of solutions in high volumes.
Possessing high-level porosity and a reticulated-foam structure, these elastic grindstones are capable of anchoring high-denier grit, making it possible to attain extremely uniform surfaces of high precision.