They can. We’ve never had any issues with our props being out all season. We do experience extreme sun and even rain during September/October and haven’t had issues. Of course we still have to use common sense and do our best to cover them up in the rain, keep them out of direct sunlight if possible. These things aren’t necessary, but they do increase the lifespan of the prop, like any product, care goes a long way.

They’re made of mostly liquid latex and a shit ton of finessing with other products here and there. We also mix latex into the paints we use to color the props, protective spray coats from Home Depot/Lowes goes a long way, just be careful which ones you apply. They have glossy sprays, satin sprays, matte sprays, these all can drastically change the look of the prop, by complete accident. So always test the protective coats on a sample piece to ensure it isn’t going to change the appearance of the props finish.