750 psi glass bubbles microspheres tooling board

{"cid":"91219424","title":"HN25HS Hollow Glass Microspheres 750 psi for Construction","imgUrl":"https:\/\/img.chinax.com\/nimg\/d0\/be\/e7544140edfee9b8489f2836d4ac-200x200-1.jpg","attrs":{"Brand Name":"HAINUO","Model Number":"HN25HS","Place of Origin":"SHANXI CHINA","Product name":"HN25HS Glass Microspheres","Application":"Construction,Rubber, Aerospace Adhesives,Boyancy Materials.","Diameter":"25-85\u00b5m","Density":"0.15-1.0 g\/cm\u00b3","Compressive Strength":"750 psi","Chemical Composition":"SiO2, Na2O, CaO, MgO, Al2O3","Color":"White or transparent","True Density":"0.244-0.256","Bulk Density":"0.12-0.15","Dielectric Constant":"1.2-2.2\uff08100MHZ\uff09","Thermal Condictivity":"0.085"}}