Epoxy 'butter from wheat flour.

Mark42

Fleet Admiral
Joined
Oct 8, 2003
Messages
9,334
I needed to epoxy some small pieces of wood to the underside of the deck. The usual thickeners - glass micro spheres and silica are packed away in the basement, so I thought about an article I read about using baking flour as a thickener. I have done this before with carpenters glue and a few other adhesives, but never with epoxy. So I gave it a try.

Took a couple of tablespoons of flour and mixed up 1 oz of epoxy. Mixed in the flour until it was thick as peanut butter. The flour makes a very smooth peanut butter, not as grainy as the silica I use. Then using the mix, the pieces were epoxied in place and clamps held them overnight. This morning I check on them. They are solid! I pushed and yanked hard and they did not break free.

So, if you are looking to make a paste epoxy, plain old baking flour will work as a thickener. I also noticed that instead of the usual 20 minute cure time, this batch took over 2 hours to cure.
 

danond

Lieutenant Junior Grade
Joined
Jun 11, 2007
Messages
1,118
Re: Epoxy 'butter from wheat flour.

And in a pinch, you can nibble on your boat to satisfy those snack cravings.
 

Oilguy

Seaman Apprentice
Joined
Mar 14, 2009
Messages
38
Re: Epoxy 'butter from wheat flour.

Now you are going to need to add a Nutrition Label to you boat.
How many calories did that add?? You just made it an atkins unfriendly boat! LOL

OG
 

Mark42

Fleet Admiral
Joined
Oct 8, 2003
Messages
9,334
Re: Epoxy 'butter from wheat flour.

I'll update the capacity label to read:

4 adults or 8800 calories.

:D

BTW, yesterday I accidentally split one of the wood block in half while banging on it. Apparently the flour didn't reduce the strength of the epoxy much!!!
 
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