Wednesday, May 15, 2013

Using Small Amounts of 2 Part Epoxy

Whenever I find myself needing epoxy for a project I usually only need a very small amount. Mixing these two parts with a stick on a piece of cardboard is not very practical or efficient. A technique used by some boat builders as well as colleagues of mine in the furniture restoration world is to mix both parts in a disposable pouch which functions as a dispenser as well.

The simplest, cleanest way I know to do this is to use small Ziploc freezer bags cut into quarters. Take one of the corners and open it up like a cup so that so can place equal parts of A and B into the pouch.

After they are dispensed, twist the bag right above the epoxy and begin to knead the two parts together. 10-20 seconds of regular kneading is about all you should need.

Now that you have a fully mixed epoxy, make a small hole at the tip of the pouch, and you can control the adhesive application easily without any mess.

Once you have the area glued and clamped, you can use this bag to refer back to feel if the mix is hardened yet. If it hardened in the bag, it’s hardened in the repair.

One caveat here: I do not recommend using non reversible adhesives like epoxy in joinery! Do not squirt epoxy or gorilla glue or super glue, etc where tenon meets mortise or the like. This has serious implications for the ability the object to be repaired in the future. For joinery in antique furniture, do yourself and the object a favor and go get a little brown bottle of Franklin’s liquid hide at the hardware store before you reglue your grandmother’s rocking chair.

1 comment:

  1. Joshua,
    Very clever idea with the epoxy! I'll be using that technique from here on out.

    Best regards,
    Albert A Rasch
    FOB Shank, Afghanistan