The difference between the two types of polyethylene profiles is that LDPE is further branched, thus more versatile and less rigid. HDPE is less branched, resulting with a higher molecular strength, and consequently it is more rigid and more matte, as well as better resistant to higher temperatures. Extrusion sliding track profiles can be manufactured in polyethylene also suitable for fast sliding processes like material handling belts. Since it is considered a non-toxic material, it is also utilized to make profiles in the food industry.
Polyethylene properties: it is a polyolefin that has a considerable resistance to chemicals, high-impact strength particularly in the HDPE version; low friction level. Significant resistance to low temperatures, and good quality electrical properties; low water absorption; and suitable with food contact.