Sub-Zero Arctic Impact Resistance
Standard polypropylene homopolymer suffers from glass transition ($T_g$) embrittlement near 0°C. Our custom PP boxes engineered for Finland use high-purity ethylene-propylene block copolymers (PP-B) and rubber-elastomer modifiers. This achieves high Izod impact strength even at -35°C to -45°C, preventing structural cracking across Arctic distribution networks from Rovaniemi to Kemijärvi.