Try a hobby shop where they sell products for MODEL aircraft.

Fine , light weight fiberglass cloth,-- ask for fiberglass
tape for reinforcing wing center sections..

I use CA glue to layer the cloth in place after roughing the
surface...

Dave


On 18 Dec 2005 17:09:55 -0800, "Longworth"
wrote:


Jay Honeck wrote:
Hmm, did you reinforce the cracked area with fiberglass fabric? It is
needed to provide structural strength.

No. We're talking about an area the size and thickness of two quarters, in
spots.

Maybe this is the reason why the patched area cracked again. We put
a layer of fiberglass fabric soaked with ABS cement on all cracked area
big a small then either add more ABS cement or a small piece of thin
ABS on top depending on the size of the cracks. Both the fiberglass
cloth and ABS cement were quite cheap ($5 or less - we got the cloth at
automotive store and ABS cement at Lowe). Cracks tend to occur at
high stress areas (screw holes etc.). The fiberglass is quite
essential to prevent future cracks.

Hai Longworth