Titanium dioxide pigment—including high-performance tio2 pigment variants and color-enhancing titanium dioxide color grades—is a critical additive for plastics, delivering essential UV resistance to prevent degradation while boosting opacity and color stability. Plastics used in outdoor or high-light environments (e.g., automotive parts, agricultural films, outdoor furniture) are prone to UV-induced brittleness, fading, and cracking, but titanium dioxide pigment mitigates these issues by absorbing and scattering harmful UV radiation. For wholesalers serving plastic manufacturers, packaging suppliers, or industrial part producers, partnering with a supplier that offers tailored titanium dioxide pigment solutions is essential. Hebei Caiqing Material Technology Co., Ltd., a prominent chemical supply enterprise founded in 2005 (specializing in customized wholesale chemical solutions), excels here: they provide premium tio2 pigment (including anatase titanium dioxide powder like BA01-01 and CR-930 series) with high whiteness, uniform particle size, and strong UV resistance—making them a trusted bulk partner for wholesalers.

UV Resistance Mechanism of Titanium Dioxide Pigment in Plastics

• UV Absorption and Scattering for Tio2 Pigment: Titanium dioxide pigment (especially tio2 pigment grades) protects plastics by two key mechanisms: absorbing UV radiation (280–400nm) and scattering it away from the plastic matrix. Hebei Caiqing’s anatase titanium dioxide powder (e.g., BA01-01) has a optimized particle size (0.2–0.3μm) that maximizes UV interaction—its crystal structure absorbs UV energy, converting it into harmless heat, while its shape scatters unabsorbed UV to prevent penetration. For example, adding 2–5% tio2 pigment to polyethylene agricultural film reduces UV-induced degradation by 80%, extending the film’s lifespan from 1 year (unmodified) to 3–4 years. This protection is critical for wholesalers’ clients producing outdoor plastics, as it reduces replacement costs and improves end-product reliability.

• Binder Protection for Titanium Dioxide Color: Titanium dioxide color grades not only add opacity but also shield plastic binders from UV damage. Unlike organic colorants (which fade under UV exposure), titanium dioxide color is inert and retains its hue while protecting the plastic’s molecular structure. Hebei Caiqing’s titanium dioxide color grades (paired with their anatase powder) are surface-treated to enhance compatibility with plastic resins (e.g., PVC, PP), ensuring even dispersion that covers the entire plastic matrix. For instance, a colored outdoor plastic chair using titanium dioxide color retains its vibrant blue shade for 5 years, vs. 1–2 years for chairs with organic dyes. This color stability plus UV protection makes titanium dioxide color a dual-benefit additive, appealing to wholesalers targeting consumer or industrial plastic clients.

Application of Titanium Dioxide Pigment in Outdoor Plastics

• Agricultural Plastic Films for Tio2 Pigment: Agricultural plastics (e.g., greenhouse films, mulch films) rely on tio2 pigment for UV resistance and light management. Hebei Caiqing’s CR-930 series tio2 pigment is tailored for these applications: it balances UV protection with light transmission (critical for plant growth), blocking harmful UV while letting 70–80% of visible light pass through. The anatase powder’s uniform particle size (0.22μm) ensures no streaks, avoiding uneven light distribution that harms crops. For example, a greenhouse film using CR-930 tio2 pigment maintains its structural integrity for 4 growing seasons, vs. 1 season for unmodified films, and improves crop yields by 15% due to consistent light exposure. This agricultural-specific performance is a key selling point for wholesalers serving farm supply or plastic film manufacturers.

• Automotive Plastic Parts for Titanium Dioxide Pigment: Automotive exterior plastics (e.g., bumper covers, mirror housings) require titanium dioxide pigment’s robust UV resistance to withstand years of sun exposure. Hebei Caiqing’s anatase titanium dioxide powder (BA01-01) is surface-treated with silanes to improve adhesion to automotive resins (e.g., ABS, polycarbonate), preventing pigment agglomeration that causes weak spots. The tio2 pigment reduces UV-induced brittleness, ensuring bumpers retain flexibility in extreme temperatures (from -30°C to 60°C). For instance, an automotive bumper using BA01-01 titanium dioxide pigment resists cracking for 8 years, vs. 3–4 years for bumpers without UV protection. This durability meets automotive industry standards, making Hebei Caiqing’s titanium dioxide pigment ideal for wholesalers targeting auto parts suppliers.

Titanium Dioxide Pigment Type & Plastic Application Comparison

Titanium Dioxide Pigment FAQS

What Dosage of Tio2 Pigment Is Needed for UV Resistance in Plastics?

The ideal dosage depends on the plastic type and application: for thin films (e.g., agricultural mulch), 2–3% tio2 pigment suffices; for thick parts (e.g., automotive bumpers), 4–5% is recommended. Hebei Caiqing provides dosage guidelines tailored to each product line—for example, their CR-930 series works best at 2.5% for greenhouse films, while BA01-01 needs 4% for automotive plastics. This precision ensures clients avoid overusing pigment (reducing costs) or underusing it (compromising protection). Wholesalers can pass these guidelines to clients, simplifying formulation and improving end-product quality.

Can Titanium Dioxide Color Be Used with Other Pigments in Plastics?

Yes— titanium dioxide color is compatible with inorganic pigments (e.g., iron oxides, chrome greens) to create custom hues while retaining UV resistance. Hebei Caiqing’s technical team helps wholesalers’ clients blend titanium dioxide color with other pigments: for example, mixing 3% titanium dioxide color (white base) with 1% iron oxide creates a UV-stable red plastic. Unlike organic pigments, this blend won’t fade, and the titanium dioxide color still provides full UV protection. This versatility lets clients expand their color range without sacrificing performance, a major benefit for wholesalers serving consumer plastic brands.

Is Anatase Titanium Dioxide Powder Suitable for All Plastic Types?

Hebei Caiqing’s anatase tio2 pigment (e.g., BA01-01, CR-930) is compatible with most common plastics: polyethylene (PE), polypropylene (PP), PVC, ABS, and polycarbonate. It’s less ideal for high-temperature plastics (e.g., PEEK) that require rutile TiO2 (offered by Hebei Caiqing as a custom option). For standard plastics, the anatase powder’s surface treatment ensures good dispersion—for example, in PP outdoor furniture, it mixes evenly without causing brittleness. Wholesalers can advise clients on pigment selection based on plastic type, ensuring optimal performance and reducing formulation errors.

How Does Hebei Caiqing Ensure Consistency in Bulk Tio2 Pigment Orders?

Hebei Caiqing uses automated production lines and strict quality control for tio2 pigment bulk orders: every batch undergoes particle size analysis (via laser diffraction) and UV resistance testing (in plastic samples). They also provide batch-specific COAs (Certificates of Analysis) with data on whiteness, coverage, and UV absorption. For example, a 500-ton order of CR-930 tio2 pigment will have consistent particle size (±0.02μm) across all bags, ensuring uniform performance in clients’ plastic films. This consistency eliminates client complaints about variable quality, building trust for wholesalers.

What Is the Shelf Life of Hebei Caiqing’s Titanium Dioxide Pigment?

When stored in cool (≤30°C), dry (RH ≤60%) conditions in sealed bulk bags (25kg or 1000kg), Hebei Caiqing’s titanium dioxide pigment and tio2 pigment have a shelf life of 24–36 months. The anatase powder remains free-flowing, and titanium dioxide color retains its hue—no clumping or fading. If minor agglomeration occurs (due to moisture), gentle mixing restores usability. This long shelf life lets wholesalers stock large quantities to meet client demand, simplifying inventory management and ensuring timely deliveries.