Here are some of the particulars for the common Devcons.
Aluminum 10610 (8,420#), Cured Shrinkage .0008 in./in. -- $61
Steel 10110 (8,260#) Cured Shrinkage 0.0006 in./in. -- $44
FasMetal 10780 (12,700#) Cured Shrinkage .0093 in./in. -- $85
Wear Resistant Putty (WR-2) 11410 (9,800#) Cured Shrinkage 0.0005 in./in. -- $62
Ceramic Repair 11700 (12,700#) Cured Shrinkage 0.0022 in./in.-- 3 pound pack is $169
Bronze 10260 (8,540#) Cured Shrinkage 0.0010 in./in. -- $95
Stainless 10270 (8,400#) Cured Shrinkage 0.0010 in./in.-- $83
Titanium 10760 (15,200#) Cured Shrinkage 0.0010 in./in. -- $120
MarineTex Gray (13,000#) Cured Shrinkage reported to be 0.0001 in./in -- 12 ounce can $35
Most of the comparable strength epoxies are not suitable due to shrinkage, chemical susceptibility or cost. The only one of those that exceed Marine Tex (13,000#) is the Titanium mix at (15.200#) but still shrinks a bit more than MarineTex. Applied thin it really isn't an issue. It is a pain to use and spoils in the can in just a couple months. The working time is very short and it's really stiff. It is $120 a can.
You work in measurements of ten thousandths?
You listed the commercial quick-cure formula details, why not use the industrial formula numbers? Hint, they are very similar to MarineTex and all are serious overkill.
