Home > Products and Services > Products by Type > Titanium Dioxide - Plastics > Market Applications Color Concentrate/Masterbatch: Extrusion Profile Extrusion This process relies on melt strength and low elasticity in the polymers processed which are primarily PVC (covered in a later section), ABS, and HDPE. The TiO2requirements, with the exception of durable PVC, are minimal since the profile cross section is usually thick enough to impart opacity on its own. Therefore, profile extrusion is far from a dispersion critical application. The pipe market, while a large consumer of resin, uses very low TiO2 loadings and is often content with low-grade products or substitutes. Some profile applications can demand brightness and whiteness, where Tiona® 188 is the best choice. RCL-4 is more than adequate for general-purpose applications. Both Tiona 188 and RCL-4 are NSF listed for use in pipe. Extrusion Coating This process, as outlined above, is extremely demanding of TiO2 and the incorrect choice of TiO2 can result in serious quality problems and equipment downtime. While RCL-4 has been used successfully, it operates at the top end of its performance capabilities. Tiona 188 was specifically designed for low volatility and to perform in the hostile processing environment of extrusion coatings. It incorporates a high performance organic and a specially tailored inorganic package. About Us | Products & Services | Safety, Health & Environment News & Events | Contact Us | Search | Site Map | Careers