How strong are HDPE Sheets? HDPE has a high strength to density ratio, mait it a strong plastic, that is able to handle high-impact stress. It is also scratch resistant and able to withstand solvents, chemicals, and alcohols, mait it an ideal plastic for various use cases. FAQs What are the benefits of HDPE sheets? Here are many benefits of HDPE sheets: High rrosion resistance - HDPE maintains its properties when in ntact with chemicals.