Or better yet, how do you know what surfboard foam is best for the conditions you’ll be riding in? When it comes to shaping boards, the three main types of foam are Polyurethane (PU), Expanded ...

Traditional surfboard manufacturing methods, using polyester resins, polyurethane foam, and fiberglass, are not only non-renewable but can also pose health risks to workers involved in the process.

Alter, who passed away on Saturday at age 80, was a self-taught engineer who invented the polyurethane foam surfboard. We'll be in your inbox every morning Monday-Saturday with all the day’s top ...