Surf style wakesurf board construction, PU vs EPS

The question that is often asked to me when talking about Surf Style boards is simply what is the difference between a board with a PU (Polyurethane) core and another one with an Expanded Poly Styrene (or Styrofoam core )?

When we talk about PU and EPS we only talk about the foam that form the core of the board, we will see later the other ingredients that make up the finished board.
Today some brands prefer an EPS / Epoxy manufacture to the traditional PU / Polyester but it would seem more a question of fashion than of real advantage. Some pro surfers prefer, depending on the “surfing” conditions one or the other type of boards that each have their advantages and disadvantages.

IMG_0603Let’s first take a look at a classic board construction, a polyurethane foam core laminated with fiberglass and polyester resin (PU / PE). These boards are generally more affordable than EPS / Epoxy boards, are slightly heavier and have a little less buoyancy than the EPS ones, allowing the rails to sink better in the water for better turns. PU boards also have a more natural flex that many surfers prefer.

The EPS / Epoxy boards are a little lighter and also have a little more flotation than the PU boards. They are made with  a core of Expanded Poly Styrene laminated with fiberglass and epoxy resin. It is more complicated to shape EPS boards and it is also harder to sand these boards because the epoxy resin hardens much faster, the materials also cost more (especially the resin) which explains why Epoxy boards are more expensive than the polyester boards.

At Black Revolt Wakesurf we offer the 2 types of constructions  for your  “Surf Style” board . The EPS/Epoxy boards cost 120 € more than the PU ones because of the extra cost in material and time of shaping/sanding.


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