1) Zipper you intend to dye
tip) Please be aware that you only can dye from light shade color to dark shade color. You can not dye from dark shade color to light shade color without bleaching which might sometimes influence teeth with bad result.
2) "The Fabric Brush Marker"
We've tried many markers, dyes.... for dyeing zip tapes. This is the best Dye Marker we can recommend you. I believe in that you can buy this at a stationery store nearby you. In case you can not find this, we have 3 colors(Blue, Brown, Black) in stock for sale. Refer the price and the detail to the end of this page.
3) Alcohol or Ethanol
4) A piece of cloth(waste)

1)
Paint the tape of the both sides of the zipper with the "Fabric Brush Marker". To save the Ink, the area to be painted is enough only the area that can be seen after replacing the zipper.
Note) It is not necessary to paint the area that are sewn in and cannot be seen at the time of replacement.

2)
Paint(rather like brush) the tape edge between zip teeth with "The Fabric Brush Marker". It is impossible to paint just the tape edge. Paint with teeth.

3)
Clean out the dye color on the teeth by a piece of cloth(waste) which is wetted by Alcohol or Ethanol.

4)
Leave it for at least 30 min. till it will dry up.