Epoxy Resin-Hollow Glass Microsphere Syntactic Foam

Syntactic foams are made by using a resin matrix to which has been added hollow spheres. The spheres can be made from many different materials including glass, plastic, ceramic, and naturally occurring substances. The most common matrix resins are epoxy and polyester. The foam is made by simply mixing the microspheres into the catalyzed resin, casting a product, and finally allowing it to cure either at room temperature or at an elevated temperature. 

---