How to choose a sunshade Outdoor Umbrellas

Buying a genuine sunshade Outdoor Umbrellas has become a concern of many consumers. A qualified UV umbrella needs to be treated with a special coating. The umbrella surface is the key to measuring the effect of UV protection.
1. Cotton, silk and nylon fabrics are not as good as polyester;
2. Some umbrella fabrics are thin and sparse, it is best to choose the fabrics that are tight;
3. Satin weave is the best, followed by twill and plain weave;
4. The umbrella surface should be large and not small;
5. The darker the fabric color, the better. Experts suggest that when picking an umbrella, you might as well open the umbrella to see the shadow on the ground, the shadow color is darker.
Although the protective effect of the silver glue surface is good, it is easy to turn black after being exposed to sunlight. In fact, the silver glue coating does not affect the sunscreen effect inside or outside. It is best to choose the silver glue inside, which is not easy to fall off.
There is also a sunshade on the market, which is coated with a layer of silver glue. According to the international standard in "Evaluation of Anti-UV Performance of Textiles", when the UPF (Ultraviolet Protection Factor) value of the fabric is greater than 30 and the transmittance is less than 5%, it can be called "UV-proof product". Experts remind that rain has a corrosive effect on the sunscreen coating. In order to maintain the sunscreen performance of the sunshade, it must be used separately from the umbrella. If the umbrella surface is dirty, you can use a soft brush dipped in water to gently scrub, but not by hand, and do not wash it too often, otherwise it will also affect the sunscreen effect.