The Beauty of Bondo
Bondo is that pink polyester auto-body filler occasionally seen on cars before they're re-painted. It's also an excellent material, for many reasons, to use as a wood-filler. In fact, it is sold as a wood filler as well as auto-body filler, the only difference being it is not pink but rather a more "natural"color. It is also more expensive when sold as a wood filler. I prefer the pink stuff because it's easier to tell from the shade of pink how much working time you are going to have before it sets up. Check out the following pictures to see what can be done as an alternative to replacing the wood.
click on any image for a larger view
Before After
Before
After
So you see, Bondo can really come in handy if you're otherwise faced with replacing an entire window or any other circumstance where the structural integrity will not be compromised by the use of bondo. On the other hand, epoxy is strong enough to be used structurally but requires much more time to apply and set up and is FAR more expensive but certainly worth the trouble depending on the situation. However, on the above example we haven't covered the CAUSE of the rot which is a fungus. Bondo itself is not a fungicide, but neither is epoxy. In this situation as long as the remaining wood stays dry, the rotting action will be suspended but not terminated. If the wood becomes damp again, the rotting action will resume. A thin solution of epoxy resin of the proper viscosity will stop the rot if the fungus infested wood is entirely saturated and at this point I would like to suggest another website positively loaded with information on all aspects of wood rot. Check this site out for just about everything you'll need to know about rot problems and their solutions.
Want to try to fix-it-yourself? Then check out this outstanding site for hundreds of DIY videos.
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