We have been working on the field of sun shade sail in the United States.there are a strong sunshine and windy in the Midwestern United. We tried to use oxford cloth； non-woven fabrics；cotton fabrics and other fabrics to cover the sun. but they were quickly torn by the strong sunlight of the United States. after we used the polymer material HDPE, the tearing was greatly relieved. HDPE is an excellent weather-resistant material. People use it as a water pipe of drinking water and bury it underground. It will be used for 50 years. We made HDPE into sun shade sail. This material of shade cloth can be used in outdoors for 5 years and may be used longer in the eastern United States. This shade sail is ventilated, so it is not blown down by the wind and stronger than the garden umbrella or romam umbrella.the canopy sail is completely rainproof by installing properly. More importantly, it is very save trouble. You don’t even need to clean him. The rain will help you clean up.Suggestion: the friends of dislike plastics don't use him. From the current point of view, HDPE is a only woven material that can be used outdoors for more than 1 year. We are always looking for better and more durable materials!NO Recycling Plastic, NO Harm.The main components of recycled materials are bottle caps, chemical plastic buckets, medical infusion pipes and other second-hand plastic, recycled plastic contains a large number of harmful substances.We Use 100% New HDPE as Raw Material !How to identify recycled materials and new materialsThe new material is slightly scorched, and you can't smell anything when you are 1 feet away.The smell of the recycled material is very strong, and you can smell it 3 feet awayThe weathering resistance of the recycled material is very poor, and it will soon be damaged in the hot sun.The colors of recycled material are diverse and mixed, and most of them are made into black sunshade sails.Polymer Particles Become Silk Thread, Silk Thread Weave Into Net.Woven mesh cloth can block 95% ultraviolet (invisible), and also allows most visible light to pass. The wind can also pass through the sun shading sail, reduce wind resistance and keep cool.There are many channels for guiding the water on the surface of shade coth, so the sun shade sail can prevent the rain.200% Strengthen SewingThe angle of shade sail is the force point. The force is at least 60 lb.In the 8 stormy weather, the angle of the shade sail may be borne over 300 lb.We use outdoor special sewing thread with good weatherability.The edge of our sun sail is always parallel, like two tracks.100% Quality ControlNormal Size:The sun sail is not force, and the tolerance of the side length is ±2%.Installation Size:After installation, the tolerance of the side sail is 0%-5%.8 tests to ensure quality (1.Size test 2.Cloth inspection 3.Weight test 4.Sewing inspection 5.eatherability test 6.outer inspection 7.Tension test 8.Packaging test )