Ti-Pure™ Solutions for Plastics

Polyvinyl Chloride (PVC)

Selecting the optimal grade of Ti-Pure™ titanium dioxide for rigid vinyl applications depends on the intended use of the product and the type of heat stabilizers used in the PVC compound to protect the resin. Exterior applications such as building siding and window profiles may require controlled chalking, primarily in tin stabilized systems. Other exterior applications require excellent gloss retention and non-chalking performance. For exterior colored products, strong colors that resists fade are desirable. Recommended Ti-Pure™ grades excel in a variety of performance requirements, and can enable color toner cost savings in some cases.

ABS and ABS Blend Polymers

Among TiO2 pigment’s key performance attributes, optical properties, thermal and UV stability, and mechanical property retention are considered to be most critical. Higher tinting strength and bluish-white undertone color help to produce brighter and whiter appearance and can also positively impact the mechanical properties. Because higher tinting strength TiO2 can be used at lower loadings, the mechanical property degradation of the polymer is minimized and the TiO2 pigment economy is improved, resulting in raw material cost savings.

PET/PBT

PET and PET-PBT blends are used for a wide variety of extruded and injection-molded articles. Key requirements of TiO2 used in these resin systems are optical properties, resistance to light discoloration, and reliable mechanical performance.

Acrylic

Titanium dioxide is used to pigment the acrylic polymethylacrylate (PMA) and polymethylmethacrylate (PMMA) for both opaque and semi-opaque applications. Appliances, communication, industrial, and construction applications use opaque whites. Back-illuminated advertising and signboards depend on translucent formulations.

PPS

Because the natural color of polyphenylene sulfide (PPS) is brown, the bluish undertone of Ti-Pure™ R-103 supports bright white color development in PPS applications. Suitable for mass-tone and tint-tone white applications, it provides bright color and good stability in thermal, mechanical, and rheological properties and offers excellent processibility.

Polyamide

Like other high-performance engineering polymers, polyamide resins demand pigments with a bluish white undertone and a hydrophobic surface. Excellent mechanical, thermal, and rheological performance stability and low amounts of metallic impurities (like iron) are also required.

Polycarbonate and PC Blends

Polycarbonate (PC) and PC blends need a blue pigment undertone to deliver a bright white color in end-use applications. The TiO₂ also needs adequate surface chemical modifications and a thermally stable organic coating to preserve the thermal, rheological, and mechanical properties during processing.

Polystyrene

Recommended Ti-Pure™ grades can be used to color polystyrene, including high impact polystyrene (HIPS), for non-durable applications requiring a maximum bluish white undertone, high tinting strength, thermal stability during processing, and resistance to light discoloration; as well as applications requiring durability.