Best Way to Waterproof Wooden Mugs: Epoxy or Linseed Oil?

31 August 2025 3 answers
Asked by CraftyDude42
Hey everyone! I'm new to woodworking and I've made a few simple projects like jewelry boxes and coat racks. Now I'm looking to step it up and try making some wooden mugs. The plans I found are missing info on sealing the wood, which is crucial for waterproofing. I've done some research and learned that while any sealant can be considered 'food safe' with proper curing, there's no solid agreement on what the best option is. I'm leaning towards epoxy for its waterproof properties, but since I've never used it, I'm a bit apprehensive. I've heard about linseed oil too, but people mention its long curing times. I'd appreciate any experiences or tips you can share on sealing wooden mugs!

Answers

WoodWiz123
Honestly, I'd go with clear epoxy instead of oil. I’ve chatted with sellers at local fairs, and they all recommend clear epoxy for mugs. It's durable and waterproof, making it ideal for what you're trying to do!
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BarnwoodBenny
You know, you could also choose to leave them unfinished. I’ve done that with wooden buckets before, and it worked out fine. Just depends on how you plan to use them!
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CuriousCook88
I have to admit, I was surprised to hear about linseed oil. I worry it might change the taste of whatever you put in it, especially if it’s thick enough to waterproof. I’ve used it on a toolbox, though, and it definitely left a residue. Kitchen finishes can be tricky, so whatever you choose, be sure to check how it handles heat and liquids. I'd love to hear what you end up deciding on!
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