2025-03-08
In daily life, people often think that parasols and umbrellas can be used interchangeably, and experts have made a detailed interpretation of this.
Regarding the difference between parasols and umbrellas, experts pointed out that they have significant differences in plastic coating, structure and testing indicators. Parasols and umbrellas have different coating treatments. Umbrellas mainly use waterproof thick coatings, while parasols use coatings with UV protection such as silver glue, and parasols do not turn yellow after UV exposure.
In addition, parasols usually have a higher fabric density than umbrellas to block UV rays. The testing standards are also different. The quality evaluation indicators of umbrellas include rainproof performance and wind resistance, while parasols also need to consider UV protection performance, and non-yellowing after UV.
Although a small amount of rain has little effect on the sun protection performance of parasols, after long-term use, the acidic substances in rainwater may accelerate the aging of the coating and reduce the sun protection effect. In a humid environment, the transmittance of ultraviolet rays may increase, resulting in a decrease in the sun protection effect.