Great Planes Piper J-3 Cub 60 Kit - GPMA0162 - Manual (Page 8)

CA+ is also known as medium or gap
filling CA CA+ is used for surface
gluing, filling small gaps between poorly
matched parts and for general purpose
applications It cures slower than thin CA,
allowing you to apply a bead to two or
three parts before assembly Curing time
without accelerator is 20-30 seconds
hold-down blocks As with most epoxies you mix equal
parts of resin and hardener, stir well, then apply a thin film
to each part Parts should be clamped, pinned, taped or
weighted in place until fully cured Before the epoxy cures,
clean off any excess with a paper towel A word of caution
about mixing epoxy-don't use extra hardener in the
hopes of making the mixture harder or work faster Just
about all epoxies work best with exactly a 50/50 mix When
you increase the amount of hardener you run the risk of
causing the cured epoxy to become either brittle or
rubbery-neither being as strong as a properly mixed batch.
CA- or thick CA is used when extra
positioning time is needed CA- is a great
gap filler and is also used to make fillets
when a little extra strength is required.
Curing time is about 1-2 minutes.
Accelerator is a liquid chemical that
comes in a spray bottle for use in
speeding up the cure time of all CA
types It should be misted on, not
sprayed heavily on the joint Accelerator
may cause exposed CA to bubble and
sometimes change color. If accelerator
is sprayed on too heavily it may weaken
the glue joint, so use it sparingly
Epoxy
Great Planes has two epoxy formulations available for the
modeler Both offer exceptional strength and convenient
working times Use epoxy when the joint requires
exceptional strength, such as when installing the firewall,
when joining the wing panels, and when installing wing
6-Minute epoxy is used
for simple, small gluing
a p p l i c a t i o n s - w h e r e
elaborate alignment is not
equired Working time
(before it's too gooey to
use) is about 5 minutes,
handling time 15 minutes
and it's fully cured in about
1 hour.
30-minute epoxy is used
for extra strength (because
it can penetrate longer) and
where several parts must
e aligned and checked
before it cures Working
time is about 25 minutes,
handling time 2 hours, and
it's fully cured in 8 hours
Great Planes Pro" Wood Glue is an Aliphatic resin glue
that works well on all types of wood It is non-toxic, virtually
odorless and dries clear Some people are sensitive to CA
and epoxy fumes, so this is a good alternative for general
modeling use Its only drawback is that it is slow to cure,
requiring the parts to be securely clamped, pinned or taped
while the glue dries
Okay, you've got your work space ready your tools are at
hand, and you know how to choose and use the right glue
for the job Let's get started!
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