Do not use Expanded Polystyrene (EPS)

December 28, 2016

I bought a bunch of EPS foam for building the frame of my fixed wing aircraft. Here’s a public service announcement — never use Expanded Polystyrene (EPS) for building the frame of a plane. Instead, use the sturdier, more dense eXtruded PolyStyrene (XPS). It’s less brittle, and can take a hit.