Composite Estonia has begun selling a new generation of styrene-free polyester and vinyl esters. They can be used if you want to make laminate directly to EPS or XPS foam. For example, CNC milled foam models.
Another good option would be to use them when you want to save the environment and the surrounding people for the specific smell of styrene.
Resins cure the effect of MEKP, such as the Butanox M50.
Resins are also available in small packages.