Can a sun umbrella be used as an umbrella?

Citizen Ms. Lou asked: The Internet says that the sun umbrella cannot be used as an umbrella. Baidu found that it looks like it can be used as an umbrella. Can the sun umbrella be used as an umbrella?

Netizen “yfmzho” replied: A qualified anti-ultraviolet parasol fabric is carefully selected, using silver glue, satin, pearl glue, impact cloth, TC cloth and other fabrics. The density process makes the molecular spacing of the fabric extremely dense. At the same time, the ultra-fine particles are mixed into the coating, which has a great effect on the scattering and absorption of ultraviolet rays. Its volume label will be sewn on the inner side of the skeleton in the umbrella, or it will be marked with anti-UV effect on its price tag. The layer of sunscreen on the sun umbrella is made of special materials or ultra-fine uncoated. Just like applying sunscreen to the water, it still needs to be reapplied. Even after drying, it will affect its sun protection effect.

When the umbrella surface is wet, due to the optical transmission of water, the transmittance of ultraviolet rays increases, and the protective effect decreases. Therefore, wet umbrellas should not be used for ultraviolet protection.