New PP compounds with increased scratch resistance and surface properties

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.