Rockwool for silencer studio there are many different types of Rockwool, where its specifications varies according to its use. Cultilene Rockwool Optimaxx Is Made With Special Specifications For Vegetable Crops As Well As Ornamental Plants. Product specifications * Horizontal Fiber Direction * Bulk Density 45Kg/M3 * 98% of the Pore Volume of Packaging and dimensions of Slab * 1 = 1000 Mm Length, a width of 150 Mm and 75 Mm Thick product benefits * environmentally friendly * does not contain disease-causing Pathogen * easy D