... Particle Size D50:3-5 micron Zinc Borate For PVC Wall Paper Molecular formula: 2ZnO·3B2O3·3.5H2OMolecular weight: 434 ... , it is widely used in textile, fiber, floor, leather, wall paper, carpet, paint etc decorative materials to improve flame retardant ... preservation etc fields.PACKAGE, TRANSPORTATION AND STORAGE:Package: internal plastic with knitted exterior covered with film, with the net weight ...