would bondo be strong enough to fill some small missing pieces of my t&g floorboards where they end by my brick stairs. porch is about 80 years old and i am planing to sand and paint the floor. thanks for any help.
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No
The movement of the flooring it's on as well as those along side it would be too much for it's bond to hold. Add to that it is in the traffic pattern and would surely get beat up. A gouge maybe, the end of the rotted off board? Probably not.
I have done several repairs of this problem. Cut back the floor board to the next joist and pc in the replacement. Once cut you can split it with a circ. saw up to the cut and pry out the pcs. Or, drive it out of the end if not nailed to any other joists.
Slide in the like replacement and face nail or screw/plug. Be sure to seal all edges and sides and the cut end of the left board.
How about one ofte epoxy wood consolident prodts used in historic preservation and wooden boat repair?
Whelp
He's got missing wood, not just mildly rotted punky stuff. Can't consolidate what's not there.........
But even so, this is on a porch floor-movement, traffic and weather all working against it. I'm thinking not gonna last.
At the very least I'd work a piece of plywood or plank below the hole (screwed through from the top), to support the repair.
You haven't said why pieces are missing, or what is meant by "small". I've used auto body filler lots to repair plywood subflooring prior to fiberglassing. It works well for filling knot holes, plywood voids, etc. But it's not appropriate for filling large areas of rot.
the missing pieces are no larger then 3/4 x 3/4" and right at the end of the boards when you step of the porch onto brick steps. is fiberglass bondo better than regular bondo? image chipping of a piece of a tooth and you want to glue it back on except you dont have the missing piece. how about exterior glue and sawdust? thanks again for all the replies.
Might work, but Calvin's point about it cracking due to the planks deflecting might be a problem.
I wasn't using "fiberglass bondo", I was using bondo in preparation for a fiberglass deck coating.
...although if I recall correctly, you can get bondo with various sizes of fiberglass shreds in it.
you just gave me a thought...
can you run a screw (or two) into the edge of the board part way to end up in the "hole" you are trying to fill? then the bondo would have something to hold on to mechanically and would be very likely to stay there even if the bond broke with the wood. just an idea, I think I did something like this before, but can't remember much any more.
but can't remember much any more.
Yeah, those Bondo fumes will do that to you.