PP (polypropylene) and HDPE (high-density polyethylene) woven fabric can be either coated or uncoated. Coating is often applied to enhance the fabric's performance, providing features such as water resistance, UV protection, or increased durability. Uncoated fabric, on the other hand, maintains its natural properties without additional layers. The choice between coated and uncoated depends on the specific requirements of the application, considering factors like weather conditions, intended use, and desired characteristics of the fabric.