>Jason Stancil wrote:
>1. Is wood flour ok for thickening epoxy to use as a glue? or is
>silica a better choice?
Works fine. I still like to add a little silica as it makes the stuff
behave a little better. But wood flour alone is not bad. Probably much
better than silica if you end up breathing a little bit of it. Sometimes
I will hold my breath while adding the silica until I walk outdoors with
it to do my mixing. A really good mask may be better. If you use
sawdust, try to figure out a way to use only the really finest stuff.
The particle size really seems to affect the handling properties of the
>2. I'm planning on building with mdo......Do i need to precoat the
>endgrain before i actually wet out the end let it tack and then add
>the thickened epoxy?
I think I would coat once, wait five or 10 minutes, and come back. And
if it works with your building sequence you could come back in a while
(like 30 minutes) and add the thickened epoxy. You may be worrying a bit
much here. Probably depends on just where the end will be in the
>Or can i do it all at once? Seems easier to not
>have to scrub the blush and from i what i have read i'm under the
>impression that it will be a stronger bond if i do it all at
>once...both a chemical and physical bond.
People say it will still be a strong bond if you come back the next day.
Blush comes off easily, tho I guess the water might take a while to dry
out of the end grain. You shouldn't be depending on good strength from
end grain butt joints. That only works, as far as I know, with very
precise joints with Titebond in very light balsa. Not something you'd
see on a boat.
>3. If i have precoated wood with epoxy and it has fully set can i
>use gorilla glue to bond the 2 epoxy coated surfaces together? I'm
>real familiar with the gorilla glue plus it's much cheaper than
>epoxy so i'm tempted to use it in some circumstances.
You'd better sand that epoxy. Haven't tried it myself. Any Gorilla Glue
I've seen is MUCH more expensive than epoxy bought in bulk. Try raka.com
>Epoxy is new to me, i've only built with titebond II and gorilla
>glue in the past. Longetivity is my goal here so a little over kill
>is ok by me.
Just be careful not to get it on you! (you can clean your tools with
vinegar, but don't let the stuff get on you)