How to Restore a Framed Stained Glass Window (Again)

By

Tools Needed:

  • Minwax Indoor/Outdoor Helmsman Spar Urethane
  • Wood Glue
  • Hand Sander
  • Clamps
  • Cotton Swabs

Oak-Framed Stained Glass Window Damaged by Sunlight & Rain

Found: Stained Glass Window from Architectural Salvage

Twenty years ago (at least) I built an oak frame for this stained glass window I had found at an architectural salvage warehouse, which is the best place to find bargains like this! I gave it to a family member, who later hung it outdoors. When I recently spotted the window, it was stuck in the corner of a dark basement, falling apart. So, I took it back to my workshop.

Architectural Salvaged Oak Frame in Disrepair

As you can see, the weather had nearly erased the finish, but I knew I first had to deal with the four loose joints, as the rain had also broken down the glue holding the frame together. Follow along to see the steps I took to rehabilitate this stained glass window frame and give it a third life.

Loosening & Regluing Oak Frame Boards at Corners

1. Loosen and re-glue the boards.

I gently tapped the four boards of the frame apart, taking care not to loosen them to the point where the stained glass window would drop out of the grooves. I used a cotton swab to coat the inside of each joint with woodworker’s glue, then clamped them back together.

Sanding Oak Frame Down to Fresh Wood

2. Sand the frame down to fresh wood.

There was no possibility of saving the wood finish I had applied years ago. Besides that, the rain and sun had also discolored the surface of the oak frame, which all meant I would have to sand down to fresh wood.

Apply Minwax Helmsman Indoor/Outdoor Spar Urethane

3. Protect the wood with urethane.

Not sure just where the stained glass window would end up, I opted to protect the wood with Minwax Indoor/Outdoor Helmsman Spar Urethane, which has better resistance to moisture and sunlight than any interior finish.

Oak-Framed Stained Glass Window in Wood Shop

Right now the finished oak-framed stained glass window is hanging in my workshop — and both the window and I are hoping everyone will forget where it went….

Until next time,

Thanks for stopping by!

Bruce