Grade 2 Titanium Foil (Light Tight) - T 0.015mm 25mm x 25mm

Grade 2 Titanium Foil (Light Tight) (UNS R50400) brings together the well-established corrosion resistance and lightweight performance of the most widely used commercially pure titanium grade with a guaranteed pinhole-free structure that blocks all transmission of visible and near-visible light. Supplied to ASTM B265 and B265 Chemistry Only, it offers a tensile strength of 230–460 MPa, yield strength of 140–250 MPa, and a density of just 4.5 g/cm³ — making it one of the lightest light-tight metallic foil materials available for demanding service environments. Its self-healing titanium oxide passive film provides reliable protection against seawater, chlorides, nitric and chromic acids, and a wide range of aggressive industrial chemicals where standard stainless steels fall short. Biocompatible, non-magnetic, and fully weldable by TIG and MIG with inert gas shielding. Typical applications include shielding for light-sensitive detectors and sensors, aperture masks and beam stops in optical and spectroscopic systems, isolation layers in vacuum instruments, and enclosures for photoreactive materials in corrosive or elevated-temperature environments where aluminium or stainless light-tight foils would be inadequate. In research, it is a traceable, specification-controlled substrate wherever optical isolation and proven corrosion resistance are simultaneously required.