[furboo]

I was lurking, hoping for more discussion here. So here goes:

If you're considering epoxy-based, I'm assuming you have big holes (say, bigger than a 1/2" diameter) and/or rot. This site looks like it has a pretty good summary of what's available:

The 7 Best Products to Patch Wood
Wood Filler & Epoxy Test (Year 3) - The Craftsman Blog

I wish he would have put a finish on his long-term test. Anyway, I've used the Liquid Wood & Wood Epox system on rotted wood in 4x12" Doug Fir beams, about a year ago. The rot was a gouge about 2' long, and max 2" wide, max 2" deep. It's holding up very well, but the stuff is pricey. Lots of great videos out there on how to use it.

For smaller fixes (I have some "alligator" wood I need to patch), I may try MH Ready Patch or Minwax HP Wood Filler.

 

[furboo]

Thanks Tom, the Bondo wood filler was another one on my list to try.

 

[furboo]

One I almost forgot about is

Advanced Repair Technology, Inc. - Product Catalog

I saw this used on This Old House, and it was amazing:

https://www.thisoldhouse.com/how-to/how-to-fix-rotted-wood-epoxy

I have an semi-old house (1968) that wasn't maintained perfectly, but it's not in that bad a shape to warrant this setup. This setup is more "wood reconstruction" rather than just "wood filler".