What are invisible zips?

Invisible zips, sometimes refered to as concealed zips, have a fold in the tape behind the sewn coil area so they can be sewn with a special sewing foot to give a hidden / invisible appearance to the teeth. The teeth are hidden from view. See Choosing the right zip and Do’s and Don’ts for […]

Are there any other important dimensions of a zip?

The top and bottom tape end extensions (see Zip Component Descriptions) can be important for positioning the zip in the application. This may vary from one zip company to another so it is important to check the Product Data Sheet for this property when making a change. The Chain width also denotes the size of […]

How do you measure the length of a zip?

There are many ways to measure the length of a zip, Coats Opti follow the British Standard Method, where all measurements are based on measuring from the end of the components or head of the slider where fitted. More clear details and images can be found in the Product Information on our website.