美国采购需求：UV树脂、环氧丙烯酸酯、聚氨酯丙烯酸酯、聚酯丙烯酸酯、纯丙烯酸树脂、LED灯板系列

We're a sign company looking for a UV protectant spray specifically designed for polyester fabric mesh banners. Our current banners last around 6-12 months, primarily used for outdoor events and construction sites, and we want to extend their lifespan to 12-24 months. The banners are created using dyesub printing, so it's crucial that the spray effectively protects against UV damage while preserving the print quality. Do you have any suitable products that can meet these requirements? Thanks!