Single-density VS Dual-density PU Outsoles for Safety Shoes

Single-density PU soles are finished via one-step injection molding with uniform density across the entire sole. Featuring low production cost and simple processing, they have consistent hardness yet obvious drawbacks: overly rigid versions cause foot fatigue during long-time standing, while softer styles wear down rapidly under frequent friction. They are only suitable for low-intensity work such as light warehouse sorting and indoor simple assembly work.

Dual-density PU adopts integrated double injection molding with two functional layers. The outer contact layer is high-density hard PU with outstanding abrasion resistance and anti-slip performance to withstand rough ground friction. The inner midsole is low-density soft PU that provides effective shock absorption.

Compared with single-density PU, its prominent strengths lie in balanced performance. The tough outer layer prolongs service life greatly, while the elastic inner layer relieves plantar pressure efficiently, easing tiredness for workers standing all day long. Likewise naglikay kini sa usa-ka-panig nga depekto sa single-density nga mga talampakan.

Ang high-performance nga talampakan kay lapad nga gigamit sa mga construction sites, workshops sa makina, petrochemical nga pabrika ug uban pang high-intensity nga mga lugar sa trabaho nga nagkinahanglan og taas nga oras sa paglakaw ug pagtindog. Bisan gamay nga mas mahal, ang dual-density PU nagtugot sa hingpit nga kombinasyon sa kalig-on ug kahimutang sa pagsuot, nagpahimo niini nga mainstream nga opsyon para sa mid-to-high-end nga safety work shoes.