waterproof an outdoor lettered sign

I recently was gifted a session at a Board and Brush establishment, and made a lettered sign which I wish to hang on the garden fence. I would like to preserve it with a waterproof topcoat. Suggestions for product? The board was stained first, then painted, then lettered. I don’t want the waterproofing product to alter the result. Thanks for assistance!

The lettering is flat, no 3D. I wonder if spar varnish would be a good option. Am a little leary of chemicals/health issues with auto clear (that I read in some other forum).

Woodworking Asked on November 17, 2021

2 Answers

2 Answers

If you want it to be bullet proof, surfboard epoxy will definitely waterproof it, and it will last for many many years. I've epoxied a 14 foot mahogany wood boat. You have to work in small batches, as the larger the batch the faster the cure, but its neat stuff. I used System 3 when I did my boat.

Answered by Paul Davis on November 17, 2021

Ive had good luck with this: Genereal Finishes Outdoor Oil

But your results will vary, depending on regional climate.

Answered by Atcfurnitureservice on November 17, 2021

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