In case you purged it from your memory...here was the damage...
After receiving the materials and detailed instructions from David Collins, here are some of the progress pics. I apologize in advance for the poor shots. Unfortunately, I was unable to get an internal pic of back brace #4 which was split about 1/3 of its length.
The following shows the materials that David sent and the pump that I built to get the FG through the syringe and the butterfly set and into the interior of the box. It also shows the clamping scheme following the FG application and setting and aligning the cracks as tightly as possible. I let it sit for 24 hours before removing the clamps.
The next pic shows the box after unclamping and after sanding and applying a thin coat of ZP. Even though it's hard to detect in the pic, I can still see evidence of the cracks if I look real close. I may be able to further reduce the evidence and make it disappear with judicious sanding and ZP filling.
Here's another angle (the cracks are on the treble side):
Internally, the repaired brace crack is invisible. The glue cleaned up nicely with a damp sponge followed by drying with a hair dryer. There is no evidence of glue on the brace nor the surroundings.
There were several hairline cracks that I used CA to repair. Internally, there is some slight discoloration but I used it sparingly and it didn't get a chance to flow beyond the crack.
In all, I'm pleased with the results and want to thank David for his generosity in providing the materials and instructions. Ok, so now I did a repair but that's enough for one lifetime!
This was a great and revealing experience in using FG for the first time. I plan to use it for tops and backs next time around. I find it just as hard as HHG when cured but the extended working time is a real pleasure! I'll continue to use HHG on braces and such since I actually prefer the shorter setup time for those operations.
