One tough PUPI.

Built Tough // Closed-Cell Sealant

PUPI® crossarms are sealed to prevent moisture contamination.

Inside every PUPI® tangent, deadend and transmission arm, you’ll find closed-cell polyurethane foam that seals the beam to prevent moisture contamination – and allows field drilling along the length of the arm. This lightweight foam is designed to completely fill the inside of the beam and will never absorb moisture, or allow water to enter the crossarm.