New PP compounds with increased scratch resistance and surface properties

24-Sep-09

Hostacom compounded polypropylene (PP) resins by LyondellBasell help the automotive industry address their needs for mechanical and safety properties, long service life, cost/performance balance and a superior, low-gloss surface finish. The compounds can find application in instrument panel, door panel and pillar trim. The principal factor contributing to this extraordinary performance is a new additive package used in the Hostacom PP compounds, which surpasses conventional PP compounds in terms of scratch resistance and surface properties. Parts produced using the Hostacom grades with 15% filler demonstrated a much better surface appearance compared to other PP compounds on the market which contain nearly 20% filler. The lower talc content also improves the density performance, enabling the production of lighter-weight parts while retaining all of the desired properties. The Hostacom grades also provide a good impact/stiffness balance and outstanding processability. Hostacom TRC 160T grade features outstanding paint-bonding properties and allows the production of finished parts without the need for priming. This helps to achieve a surface quality consistent with traditional coating solutions, while significantly reducing manufacturing chain complexity. Hostacom EKC 133N Multispot grade that includes carbon fibers gives a surface quality comparable to conventional parts laminated with a textile layer design for upper pillar trim.