What are metal zips made from?
Metal zips are normally made from Polyester Tape and Brass Teeth. Other materials can be used for the tape such as Cotton, a mix of Poly/Cotton. See “Choosing the right zip” Garment Dye. The teeth can also be made from Aluminum to reduce weight and Steel / Copper for some specialist industrial applications.
What are plastic moulded zips made from?
Plastic moulded zips are normally made from Polyester Tapes and Poly Oxy Methylene (POM) teeth. Alternative materials can be used for teeth such as Polypropylene for clear teeth materials. Other more highly technical plastic materials can be used for more specialist end use. Zip tape is generally polyester.
What is the difference between sewn coil and spiral zips?
Spiral zips are made from integrally weaving monofilament into the centre of the zip as one continuous process. Because this process only involves two materials this is a more quality efficient process. See the Product Information on our website.