Herdins stain

Herdins powder dye can be used both for colouring wooden paddles and nylon/polyester fabric used when skinning a kayak. One bag of powder dye is enough for staining one skin-on-frame kayak. One bag of powder dye fits half or one liter of water.

For finish both varnish and oil can be used.  

Website for more on Herdins here.