6 Keywords for Choosing a Shade Sail

1.Look at the density of the fabric.

When choosing an umbrella surface, umbrellas with sparse fabrics generally have poor anti-ultraviolet performance, and consumers should buy them carefully.

2. Choose a larger umbrella.

Because the fabric has the characteristic of shrinking, when buying a shade sail, the umbrella surface should be large rather than small.

3. The color of the fabric is related to the UV protection performance.

Under the same conditions, the darker the fabric, the better the anti-ultraviolet performance. In contrast, the anti-ultraviolet performance of black, navy blue, dark green, light blue, light pink and light yellow is better.

4. Select familiar products.

Beware of ordinary umbrellas that overuse UV protection umbrellas.

5. Judging the anti-ultraviolet performance according to the fabric properties of the umbrella surface.

Generally speaking, cotton, silk, nylon, viscose, etc. have poor UV protection, while polyester is better. The polyester-containing fabrics that are usually used to make umbrellas include colored dingbu, mike cloth, etc. In addition, the anti-ultraviolet performance is better with satin weave, followed by twill weave, plain weave, the darker the better.

6. Look at the processing of the umbrella surface.

Whether the sun shade sail can prevent ultraviolet rays or not, the texture of the fabric is not important, the main thing is what kind of technical treatment the manufacturer has done to the fabric.

Generally, cotton and linen fabrics have a certain degree of anti-ultraviolet performance, but the degree is not strong. In the past two years, most of the sunscreen umbrellas sold on the market were coated with a layer of silver glue on the umbrella surface, which can reflect and block some direct ultraviolet rays.

However, the quality of silver glue is good or bad. The silver glue of sunscreen umbrellas produced by manufacturers with good technical conditions is not easy to fall off, and some cheap sunscreen umbrellas just paint a layer of silver on the umbrella surface in order to make up for it. After several times of sunlight exposure just fade.