HAINUO HN32HS Hollow Glass Bubbles represent an advanced class of functional microsphere fillers engineered to solve the persistent challenges of cracking, delamination, and surface degradation in exterior architectural coatings. Composed of high-strength borosilicate glass with a chemical composition including SiO2, Na2O, CaO, MgO, and Al2O3, these hollow glass microspheres deliver a compressive strength rating of up to 100 MPa, making them among the most mechanically robust
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