PVC suction hoses can become stiff and hard in cold winter temperatures. This is because PVC (polyvinyl chloride) loses flexibility as temperatures drop, making the hose more rigid and prone to cracking or breaking if bent or handled roughly.
Factors Affecting PVC Hose Hardening in Winter:
Temperature Threshold
PVC typically starts losing flexibility below 4℃ and becomes significantly stiffer near or below freezing ( 0℃). In extreme cold (e.g., -23℃ or lower), PVC can become brittle and may shatter under stress.
Plasticizer Content
Some PVC hoses contain plasticizers (additives to improve flexibility). Over time, these can leach out, accelerating hardening in cold weather. Lower-quality PVC hoses harden faster than premium ones with stabilized plasticizers.
Exposure Conditions
Hoses left outdoors in freezing temperatures will stiffen more than those stored indoors.
Repeated freeze-thaw cycles can degrade PVC over time.
Solutions to Prevent Damage:
Store Indoors When not in use, keep the hose in a heated or insulated space.
Use Cold-Weather Alternatives Consider hoses made of rubber, TPE (thermoplastic elastomer), or reinforced PVC designed for winter use.
Warm Gently If stiff, let the hose warm gradually (e.g., in a garage) before bending or coiling. Avoid direct heat (like a blowtorch), which can damage PVC.
Drain Water If used for liquids, ensure the hose is empty to prevent freezing-induced cracks.
Orientflex provides you the best solution
Orientflex is an experienced hose manufacturer which has been working on hoses for 16 years. We have strong R&D ability and we launch low temperature resistant suction hose. While it can work at -30℃ and remain flexible. This is the ideal choice for cold weather and high latitude areas. Contact us now and get more information.