Fiberglass That R/C Project

 

PART I
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Part II

 

 

Fiberglass that R/C project: You probably have seen
those planes with the show stopping finishes on them. Nice
smooth, painted finishes, deep rich colors. Wouldn't you like
your next project to look like that, well you can.

Presented here is a pictorial guide to the technique of
fiberglassing. While other methods exist, this one here has
worked very well for me on many model R/C planes.

Fiberglassing will produce a nicer finish,
and a stronger airframe, but is allot more
work than covering with film. Be prepared
for sanding, and more sanding (my most
dreaded task), and then when you think
your finished, sand some more.

If I haven't scared you out of fiberglass-
ing yet, lets get started.

What you'll need: Fiberglass cloth, Spray adhesive, Thin CA glue, X-acto knife,
Sandpaper - 180, 220, 320, 400 grit, Wax paper, Sandable primer, Paint brushes, Spot putty, Dust mask.
pic_2.JPG (19407 bytes) 1) Here's what you need to get started: the part(s)
you want fiberglass, spray adhesive (3M brand
shown), fiberglass cloth.

2) Spray a light mist (and I mean light) of
adhesive over the part, just enough to tac the
fiberglass cloth in position and keep it from sliding
around.

Hint: start with the bottom surface of the part.

pic_10.JPG (16961 bytes) 3) Lay the fiberglass cloth down over the part.
Pull out all the wrinkles and bubbles by lifting up
the cloth and repositioning. You may have do this
a few times, but the final result should be a
smooth surface.

Don't worry if you can't get it perfect, a few
wrinkles won't hurt. You'll sand them down and fill
them later.

4) Laminate the fiberglass cloth to the balsa
using thin CA glue. The laminated areas appear
darker in the photo.

Note: Always have adequate ventilation when
working with CA glues. The fumes can
be hazardous to your health. Use the odorless
type CA's if necessary to avoid exposure to the
fumes.

pic_9.JPG (17507 bytes)
5) Pull on the cloth and wrap the fiberglass
around the edges of the part. Now laminate the
edges.

This is just like applying film covering here, start
from the bottom surface and overlap at the
leading edges.

Hint: When working with larger parts, don't try
to cover the entire surface with a single piece
of fiberglass, use multiple pieces. Overlap them
and sand joints flat later.

pic_8.JPG (17526 bytes)

Continue to Part II