I must have hear a hundred times that if you put ????? in a gap and drop some CA on, it make a greag strong gap fillier. My problem is that I don't remember what the ??? is. Corn starch, Baking Powder, Baking soda=???? Iremember it was a common kitchen product.

The reason I ask, is that i whacked a wing tip and broke the "hardwood joiner" for the wing half's on my Cermark SU-31. I didn't discover it untill I was cleaning up after three filghts after the repairs to the cowl and landing gear. After fixing the broken joiner and replacing a pulled aprart root rib, I decided to completely skin the wing and see what else happened that wasn't obvious. It turns out that there is an 8" crack in the LE sheeting on the top and about a 4" crack on the bottom there is no LE damage or rib damage though. One of the cracks has opened slightly, just enough that I would be happy with just thin Ca for a fix. Iremember that one of the above powders packed into a crack and the hit with CA gives a strong repair. Which powder???

Don</p>