nuts & bolts
on Wood Structure
JOE NORRIS, EAA 113615
Wood construction is a time-honored method of building aircraft, dating back to the arliestdaysofexperimentation withgliders.
While wood continues to be a popular material for
constructing homebuilts, one thing that has changed
dramatically over time is the adhesive used.
Glueing Gussets Using T- 88
Today, most homebuilders opt for some form of
epoxy, and T- 88 is one of the most popular choices.
This product is easily mixed, has some gap-filling
properties, and is not temperature-critical. Let’s take
a look at installing a plywood gusset on a wooden
structure using T- 88.
First, you must protect your skin. Epoxy can cause irritation or
allergic reaction, so you’ll want to use either gloves (latex or
nitrile) or, as shown here, an “invisible glove” cream.
You’ll be working with small quantities, so you won’t need a huge
container for mixing your T- 88. The bottom of a crushed soda or
beer can is the perfect size for mixing a batch of adhesive.
T- 88 is mixed in equal parts by volume, so simply draw a few lines
of epoxy across the can bottom, and then draw an equal number of
lines of hardener.
Use a Popsicle stick or tongue depressor to mix the adhesive and
hardener. Take time to mix thoroughly. When properly mixed, the
T- 88 will look creamy, as shown here.