Extremely strong and lightweight, Vislon zippers are great for marine applications.  The "teeth" are made from Delrin and tape is polyester.  Corrosion resistant, self-lubricating.  Excellent resistance to heat and cold.

Various lengths available in three sizes in black or white.  #5 is 9/16" wide comes with a single pull locking metal slider.  #8 is 5/8 wide and # 10 is 11/16 wide, they both come with a double pull locking slider.  Can be cut to size.  Use Zipper top stops with #10 zippers.