What is the thread recommended by Coats for stitching of vulcanised / autoclave upper shoes? What SPI should we use to stitch adult upper?

Are Opti zips chlorine and salt water resistant?

Please inform our Customer Service department when placing orders for boat covers / marine upholstery. For boat covers / marine upholstery, we recommend standard puller with silver plated slider, or special plastic sliders.

How can I resolve products being returned with corrosion on the sliders

Please inform our Customer Service department when placing orders for goods for outdoor use. For such goods, we recommend standard puller with silver plated slider, or special plastic sliders. Outdoor goods should be dried before storage. They should not be packed away wet.