FAQ – EFSA 2021 safety assessment of titanium dioxide (E171)
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2025-08-16 14:55
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The photocatalytic activity of titanium dioxide results in thin coatings exhibiting self-cleaning and disinfecting properties under exposure to ultraviolet radiation. Alloys are characterized by being lightweight and having very high tensile strength (even at high temperatures), high corrosion resistance, and an ability to withstand extreme temperatures and thus are used principally in aircraft, pipes for power plants, armour plating, naval ships, spacecraft, and missiles.
The so-called “barrier effect” makes it possible to achieve good anti-corrosion protection in primers.
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