The difference between different polyethylene marine fender pads

HDPE, commonly known as high-density polyethylene board, is a polyethylene board with a molecular weight of less than 1.5 million. PE has excellent resistance to most living and industrial chemicals. Certain kinds of chemicals are chemically aggressive, such as corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene), and halogenated hydrocarbons (carbon tetrachloride). The polymer is non-hygroscopic and has good water vapour resistance for packaging applications. HDPE has good electrical properties, especially high insulation dielectric strength, making it very suitable for wires and cables. Medium to high molecular weight grades have excellent impact resistance at ambient temperatures and even as low as -40F. Its wear resistance is between PE and UPE. Of course, the fender is mainly to examine the wear resistance and impact resistance of the plate, so HDPE is also one of the optional materials. Due to the long-term wind and sun in the port and wharf, Therefore, acid and alkali resistance is also one of the important indicators.

UPE is commonly known as ultra-high molecular weight polyethylene sheet, which is the abbreviation of UHMWPE or UH-MWPE or UH-MWPE. It refers to a polyethylene sheet with a molecular weight of more than 1.5 million and has extremely high molecular weight properties. It almost concentrates various engineering plastics It has the advantages of wear resistance, impact resistance, self-lubrication, corrosion resistance, low temperature resistance, hygienic and non-toxic, not easy to adhere, non-absorbent, low density and other comprehensive characteristics, it is very suitable for fenders, but the price is also relatively Expensive, so many customers think the price is high. In fact, the reason is due to the difference in materials. Different materials have different effects, so of course the price will not be the same. If you want better durability, you can consider UPE fenders Board, the molecular weight is 3 million pure material.