Knowledge Base
Knowledge Base
General industry information — not a specification of any particular ROST product. Each article is marked with its review status.
LDPE vs. HDPE: what's the difference
Pending technologist review before final publication.LDPE (low-density polyethylene) and HDPE (high-density polyethylene) are the two main polyethylene types used in film and bag production.
Generally, LDPE is more flexible, stretchy, and transparent — typically used where material softness matters. HDPE is denser and stiffer, with higher tear resistance at a lower thickness — typically used where strength at lower material cost matters.
This is general industry information. Which material actually fits your request is confirmed by our technologist after you describe the task.
What are recycled raw materials in polyethylene film production
Pending technologist review before final publication.Recycled raw material is reprocessed polyethylene, sourced from production scrap or used film/bags, which is processed and used again to manufacture new products.
Using recycled raw material reduces dependence on virgin plastic and the volume of waste sent for disposal. PPF ROST manufactures over 50% of its output from recycled raw materials at its own facilities.