How to Weatherproof a Garden Mirror

5 Minutes
An inexpensive thrift store mirror hung on a garden fence is a great way to add character and visually expand a small garden. Since the mirror I picked up was only intended to be used indoors I needed a way to weatherproof it. Every type of polyurethane I found was for interior use only. But as I was about to leave Lowes I found something called Flexible Sealer (in the spray paint aisle). It’s meant to seal tiny outdoor leaks like on your downspout. It’s a liquid rubberized coating that fills any small cracks or holes. It dries clear and is paintable. My outdoor mirror wont last forever but hopefully I've extended the life by a couple of years.
Flexible Sealer used to protect garden mirror
Spray on sealer
2 Little Superheroes
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Frequently asked questions
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  1 question
  • Candace Kaye Candace Kaye on Apr 05, 2016
    The outdoor mirror. Are you spraying only the back of the mirror for the purpose of preventing the wood frame from rotting, or are you spraying the entire mirror?
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3 of 12 comments
  • John Yeager John Yeager on Nov 23, 2015
    spraying just the frame is OK. You are water proofing it. I have lots of mirrors in my garden and the glass will be ok
    • Iha29447753 Iha29447753 on Mar 13, 2018

      Should I spray or explosive the glass so it doesn't crack? I have a metal star with glass mirror inside the points of the star, it will be on a wall in my outside porch.

  • Iha29447753 Iha29447753 on Mar 13, 2018

    It's supposed to say decopoge not