pu

In Hawaii, "PU" is primarily used within the surfing and board-shaping communities as shorthand for polyurethane, referring to the traditional foam blanks that have been the industry standard for surfboards since the 1950s. While newer materials like EPS (expanded polystyrene) and epoxy resins have become popular for their lighter weight, many local surfers and shapers remain fiercely loyal to PU because it sits lower in the water, providing better control and a smoother ride in Hawaii's notoriously choppy and windy conditions. Using the term correctly signals that someone has a deeper understanding of surfboard mechanics and local wave dynamics, rather than just being a casual wave rider.

Noel leaned back on the railing of his front porch on the east end, running a calloused hand over the rails of his newly shaped gun. He had spent three weeks mowing foam in the shed out back, and he wasn't about to let Josh and Tina tell him what materials to use. "You guys can keep your fancy epoxy pop-outs," Noel bragged, tapping the fiberglass shell. "I only shape PU. Gives you that heavy, classic drive when the winter swells hit the outer reefs."

Josh rolled his eyes, taking a sip of his Primo. "Brah, EPS is lighter. You living in the stone age." Tina just laughed, knowing Noel was stubborn as a mule. Noel puffed out his chest, pointing a sanding block at them. "Lighter ain't better when the wind is howling thirty knots across the channel. My PU boards cut through the chop like butter. When you guys are bouncing around like corks, I'm drawing clean lines."