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Midland Plastics Custom plastic components manufacturer, fabricator and assembler


High Density Polyethylene

Midland’s marine-grade high-density polyethylene (HDPE) is specifically designed to withstand marine and other outdoor applications.


Marine-grade polyethylene resists damage from moisture, sunlight and saltwater. Because it is produced as continuous sheet, HDPE is guaranteed not to delaminate.

Midland has assisted customers with such marine applications for HDPE as:

  • Trim pieces
  • Ladders
  • Cabinets
  • Seat backs and bottoms
  • Consoles and decking

Ordering options

Midland offers marine-grade polyethylene sheet in these configurations:

Dimensions – Standard sheet size is 54 by 96 inches with other sheet sizes quoted upon request. Thickness range is from ¼-inch to 1 inch.

Colors – Black, Sea Foam, Polar White, Mercury Gray, Craft Gray, and Sandshade.

Weight – Besides standard weight sheet, Midland also offers marine-grade HDPE in a lightweight version for applications where weight is a consideration.

Slip Resistant Textured Surface – To reduce the risk of passenger slippage, Midland offers HDPE in a highly textured surface sheet for decking or ladder applications. The surface is a special stippled, non-slip design which is substantially different than the texture on standard sheet.