Incorporating PE filler masterbatches into HDPE shade nets is primarily aimed at reducing material costs. By replacing a portion of the more expensive HDPE resin with filler materials, manufacturers can achieve significant cost savings.

Fillers, such as calcium carbonate or talc, can help minimize shrinkage during the cooling phase of the extrusion process. This results in HDPE shade nets with improved dimensional stability and reduced distortion

Some filler materials can improve the UV resistance of HDPE shade nets, increasing their durability and lifespan when exposed to sunlight. This is particularly important for outdoor shading applications in agriculture and horticulture.