I have a Showers Pass Portland Rain Jacket. The manufacturer recommends using Nikwax TX Direct Spray On to maintain waterproofing properties. How much should I apply to the jacket? How do I know if it's too much or too little?

Relevant Links:

  • Jacket Care Instructions
  • Nikwax Tx Direct Spray

  • 2
    • 1
      I would follow the directions printed on the bottle (which will usually say "don't saturate" or "thoroughly saturate and let dry" depending on the product.)
      – Lost
      Commented Sep 23, 2012 at 6:11
    • Unfortunately the bottle, nor the website for Nikwax mentions any measure of quantity or method of application.
      – Benzo
      Commented Sep 23, 2012 at 14:21

    1 Answer 1


    From the Nikwax link you provide:

    For best results remove all non-washable parts and always clean item(s) first with Nikwax Tech Wash®. No need to dry item(s) before waterproofing.

    • Protect working surface and lay clean wet fastened garment flat.
    • Hold bottle 15 cm/6 inches away from garment.
    • Apply evenly to outside of fabric.
    • Wait for 2 minutes. Remove any surplus product with a damp cloth.
    • Check carefully to ensure no areas have been missed.
    • After several minutes check for and remove any surplus product with a damp cloth.

    Sounds to me like you should spray in on evenly almost to the point of saturation, and remove any excess... (excess is usually the result of over-saturation).

    I suspect there is not any hard-and-fast rule, otherwise I imagine they would be more specific.

    I'm a fan of more-is-better approach (... to life).

    If you use too little, you'll probably notice next time you wear the thing.

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