Which is why there are threads like this. But you are right, as i actually called up REMA, and spoke with a gentlemen who gave a good explanation as to the science behind all this, and to be short, the blue cement (he said they teach their salespersons to call it cement, not glue, due to the stronger connotation of the former) is designed for tire patches, and which have a cushion, while the Cold Vulcanizing Fluid is for use with their patches, which are specially manufactured for bonding with their cement.

I explained my desire to find a cement that would work best for neighborhood bikes using cheap Chinese patches and he recommended the Cold Vulcanizing Fluid, the cheapest i found for 8oz w/ S+H being 18.00

If i think Slime would do the same for 12.00 i may get that, though about 10 of the Monkey Grip kits @ 0.69 a kit (5 patches with cement) plus 5.00 S+H is attractive, as you would get less cement, but have a fresh tube regularly. Thank God for choices!