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Performance metrics & physics

UV-A

UV-A is the long-wavelength ultraviolet band (315–380 nm) that penetrates deep into skin, causes photoaging, and is the primary UV that reaches the ground after atmospheric filtering.

UV-A is the largest fraction of UV that reaches Earth's surface — about 95% of total UV. Its effects on skin are cumulative photoaging and increased melanoma risk over long exposure.

For Singapore drivers, especially commercial drivers spending many hours behind the wheel, the cumulative UVA exposure through OEM glass is significant. Quality tints block 99%+ of UVA, providing meaningful skin protection.

Standard OEM laminated windscreens already block most UVB but transmit substantial UVA. Aftermarket clear-IR film closes that gap.