So here are my contenders:
1. Loctite Xtreme
2. Loctite U-05FL Flexible Commercial Adhesive
3. DEVCON 2 Ton Epoxy
4. Loctite E-120HP
5. JB WELD
6. Acraglas Gel
7. West Systems Epoxy (10 min Pot life)
Process:
I 'glued' the samples to a single bar of ATS-34 hardened to 60HRC. The bar was roughed up with a new 80 grit belt. The bar was then scrubbed with Simple Green, then sprayed down with Brake Cleaner.
The samples are dymond wood abraded with a 36 grit disk.
The clamping was done with hand clamps - loose enough that the block could be slid underpressure fairly easily.
This was done on Tuesday, March 8th at 9PM. Curing started with a light bulb over the sample to keep it warm over night. It's been at room temps since then (68 to 80).
Steve