Polyester 210g is a more opaque material than polyester 115 and is often used as a side balcony privacy screen . This pure white base material is excellent for printing and the graphics appear photorealistic. A balcony privacy screen made of polyester 210g gives you many advantages. The material creates excellent privacy on your balcony. It offers sun protection when the sun is low in the sky and it can also be washed if necessary. Use plastic eyelets during assembly so that they do not knot when washing.