Resin-based lightweight composites filled with glass bubbles are an advanced class of materials designed for weight reduction, thermal insulation, and dimensional stability, making them ideal for aerospace, automotive, marine, and construction applications.
What Are They?
These composites are made by dispersing hollow glass microspheres (often referred to as glass bubbles) into a polymeric resin matrix, such as:
- Epoxy
- Polyurethane (PU)
- Polyester
- Vinyl ester
- Phenolic resins
Typical Applications
Automotive
Lightweight body panels
Under-the-hood heat shields
SMC/BMC components
Aerospace
Interior panels and cabin parts
Fairings and access panels
Marine
Buoyant structures
Hulls and deck components
Construction
Lightweight wall panels and cladding
Thermal insulating plasters or coatings
Electronics
Encapsulation compounds
Low-k dielectric fillers
Fire & Safety Note:
Some glass bubble-filled phenolic resins offer low smoke and flame spread, suitable for transit and building codes.
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