A uv silicone wristband can transfer its color darker under sunshine when absorbing uv light. It is not only with good looking appearance but also indicating the strength of the uv index. So some uv silicone bracelets made as the indication with the ruler of levels of index. Wearing on the wrist to avoid long time staying under strong uv. So what makes it uv transfer ? The answer is the UV phosphor which usd uv energy to open the sensitive molecular bond and make it jump from low energy to high energy level There will be a change from visible light to visible light, resulting in the changing color from light to dark. It become a uv silicone bracelet when the UV phosphor is put into the silicone mass and produce it a band. where-to-buy-colored-wristbandsbuy-wristbands-online slightly according to temperature. UV and ozone can easily decompose the silicone. Organic silicon has better thermsilicone wristbandsal stability and resistance to radiation and weather resistance than other polymer materials. It has a service life of up to several decades in the natural environment Silicone is one of the most unreactive compounds. They are resistant to biological aging without rejection of the animal body. As we can see, that why the silicone bracelet so comfortable and durable to wear. Different color of the bracelet has different meanings. Band color white stand for making poverty history. Yellow stand for livestrong. Black and white stand for standing up and speaking up. Blue stand for beatting bullying. Pink stand for supporting knowledge strength. Blue and white stand for one world one cause Blue and green stand for say no to sectarianism. Also a silicone bracelet can be used as a promotional item for entertainment or sport. It is hot sale as a advertisement gift. ity and other options like glowing and individual pack. It shows what the bracelet looks like with your message or logo. Make the mould or film. A mould is needed for debossed, embossed, colorfilled styles. It is made from copper. A film is functioned like a mould but it is for printed wristband only. Prepare the rubber material. A rubber bracelet is mainly made from silicone rubber, and some other accessories like curing agent which solidify the soft rubber, and Color masterbatch which makes bracelet colored. Produce bracelets by the mould. As we mentioned before in 2nd and 3rd step, we will transfer the blocks to bracelets by a set of moulding machine of high temperature. Edge cutting. A semi-product of rubber bracelet has rough edges, we have to cut it off. It is cut by machine. Color the logo and wording. The bracelet comes out frsilicone wristbandsom moulding machine without colors on the logo and lettering. We have to fill the ink or print the ink on the bracelet. Clean the product and packing. As the bracelet has static electricity, dust will be on the surface and hard to move off. We count the quantity by weighting. Normally packing will be 100pcs/bag, and 2500pcs/ctn. ee. Order 100pcs or more, get 100pcs free and 10pcs keychains free. All the free wristbands and keychains are same design of the one you order. We are the only one to do it. Maybe you will ask why we offer so big discount, will the quality be low? The answer is that we are exactly manufacturer rather than trader. We do production, design and sales all ourselves. So all the price is wholesale price, factory price. Our strategy small profits and quick sales. No extra cost, no MOQ. Event one pcs we can make with no extra cost. We are online 24 hours 7 days. You can contact us via email, phone call or live chat. We are appreciated that we can send us inquiry with design detail. All the ditital proofs are free, no matter you order or now. We can do super rush order in 2 days. One day production and one day shipping. Time is guaranteed or we will refund if it dealy.