Brent, I do have a system for dispensing the hysol, but it isn't convenient. I've learned that using a very small amount of glue (a very thin threadlike bead), using a precise mixing ratio, and clamping very tightly during curing are important to getting a strong, flat, flexible, and invisible seam. It is desirable to use a very small quantity of glue. About 3/4 of a ml of each component (to give 1.5ml of mixture) will be plenty for a six foot seam.
I use the low viscosity Hysol (U09LV), and I refrigerate it to increase the open time. I use 1 ml syringes with large blunt-end 15 gauge steel needles to suck out 0.75 ml of each component. I squirt these into a single 1.5 ml eppendorf tube. I mix with a clean piece of wire for about 30 seconds, and suck out the mixture with a curved-tip irrigation syringe. The syringe has to be thoroughly washed out with very hot water and strong detergent beforehand, because irrigation syringes often have a little bit of silicone grease in them, which will ruin the bond. I then dispense a very thin, threadlike bead of glue on one of the pieces to be bonded, assemble the seam, put strips of LDPE painters plastic over it, and clamp it tightly with a dozen or more C-clamps between two pieces of smooth hardwood moulding.
I tried dispensing the glue by using a dowel marked with gradations as a plunger (watching the markings to push out equal amounts), but for small volumes of glue (less than 2 ml) this method isn't accurate. You could easily get 30% more of one component than the other and not know it if you are dispensing just a couple of drops.
So, it isn't a simple operation. Lawson Kline bonded his cuben tarps (no longer available), and I think Hyperlight Mountain Gear does some bonding and some sewing (and might use tape sometimes as well), but all other cottage manufacturers of cuben gear choose to only sew or tape. Those methods give a weaker, heavier seam than bonding, but they are far easier.