How to Waterproof a Painting for Outdoors
Outdoor Art

How to Waterproof a Painting for Outdoors

With summer upon us we are spending more of our time outdoors and you want the perfect outdoor oasis in which to relax after a long day at work.  In order to create the perfect outdoor spot you can take your cues from your style indoors.  You can take some of your favorite pieces of art from inside the house and move them to the porch or patio.  There is a little prep work to be done first so let us show you how to waterproof a painting for outdoors, it is fairly easy and it won’t take long at all.

Materials you are going to need all of which can be found at any art supply store or online.

  • A piece of art
  • Polyurethane spray sealer
  • Mod Podge clear acrylic sealer

Step 1: Sealing the Frame

You are going to want to start with sealing the frame of the canvas and for that you will use the polyurethane spray sealer.  Roll back and tape down any canvas that is loose on the back and make sure you cover the frame thoroughly.  You want to leave it to dry thoroughly, leaving it overnight should be more than enough time.

Step 2:  Sealing the Canvas

Now you want to make sure that the canvas gets properly sealed and for that you want to spray the entire thing, front and back with the Mod Podge.  You can follow the instructions on the can and make sure you spray in a well-ventilated area.  After the canvas has dried thoroughly you should re-spray it just to be on the safe side.  You want your porch to look good not to let the weather destroy your art.

Things to Watch Out For

If you’re piece of art is white then don’t use a polyurethane spray, it can leave behind a yellow tint, spray on just the frame alone.  This was meant to seal outdoor furniture not art so be wary while using it.

Mod Podge has both an outdoor sealer and a clear acrylic sealer, while it may seem like a good idea to use the outdoor sealer, it isn’t.  The outdoor sealer can leave behind a sticky film on your canvas that looks terrible.  The clear sealer works just as well and it is much easier to use.  If you want you can use both, but use the acrylic sealer first to seal in the painting and avoid the sticky residue.

You are now ready to hang your painting outside and it should weather the elements just fine.  Now, sit back and relax, enjoying your outdoor oasis!

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