The range of applications in which coated microspheres and microparticles can be used to enhance current composites, or provide new solutions, is extremely diverse and the size, density, surface chemistry and functionality required by end users tend to be application specific. There is significant scope, therefore, for the development of a wide range of new materials to meet these diverse market opportunities.
Glass Microspheres are also used in composites to fill polymer resins for specific characteristics such as weight, sandability and sealing surfaces. When making large forms such as boat hulls for example, shapers seal the eps foam blanks with epoxy and lightweight microballoons to create an impermeable and easily sanded surface upon which fiberglass laminates are applied.