TiO2 nanoparticles powder can be applied for paint, below are some info for your reference.

*The application of nano titanium dioxide in polyurethane coatings
Adding rutile nano-titanium dioxide to polyurethane coatings can have a good waterproof effect and good flexibility at low temperatures. It can be used in kitchens, bathrooms, toilets waterproofing projects, pools, swimming pools, etc.

*Application of nano-titanium dioxide in low surface energy marine net cage net clothing coating
Add 0.2-2% of nano-titanium dioxide, nano-zinc oxide, nano-magnesium oxide 0, etc. to the low surface energy marine net cage net coating to solve the problem of fouling organism adhesion and play a good anti-fouling effect.

*Application of nano-titanium dioxide in photocatalytic, self-cleaning water-based coatings
Add the water-based composition of the photochemically active metal oxide such as nano-titanium dioxide composition to the water-based paint, which is coated or sprayed and dried under environmental conditions to form a novel photochemically active, non-glossy coating. Transparent substrates such as window glass have strong wettability and adhesion. Played the role of photocatalytic activity and self-cleaning.

*Application of nano-titanium dioxide in elastic coatings for exterior wall decoration
Add nano-titanium dioxide to the elastic coating for exterior wall decoration to make the coating have the characteristics of self-crosslinking and curing at room temperature. Its coating film has excellent elasticity, weather resistance, water resistance, and stain resistance, and can be used for the coating of concrete exterior wall surfaces .

*The application of nano-titanium dioxide in the water-resistant latex paint color system
Add 10-20% rutile nano-titanium dioxide to the water-resistant base paint. The color paste is added to the water-resistant base paint in the amount of 2-5% of the color system to form this water-resistant latex paint color system, which overcomes the disadvantages of poor water resistance and short service life of traditional latex paints .

*The application of nano-titanium dioxide in interior wall decoration coatings.
Adding 2-15% of nano-secondary titanium oxide to the coating, the prepared coating has more than 8 times the dust absorption and dust reduction ability of the ordinary coating, the contact angle is less than 45 degrees, and the scrubbing resistance is greater than 4500 times, reaching the interior wall coating High-quality products are required to be applied to the surface of buildings. In addition to the functions of interior decoration materials, they also have the functions of dust absorption, dust reduction, and easy cleaning.