PETRA Microlite (Hollow Glass Microspheres) is a premium-grade lightweight filler engineered from hollow soda-lime borosilicate glass microspheres. Designed for high-performance industrial applications, Microlite offers an exceptional strength-to-weight ratio, low density, thermal insulation, and chemical resistance. Its smooth spherical structure improves flowability, reduces shrinkage, lowers resin and binder consumption, and enhances overall product performance. PETRA Microlite is widely used in oil & gas, automotive, aerospace, construction, composites, paints, coatings, adhesives, and insulation applications where weight reduction and performance enhancement are critical.