A couple of tips following recent use of Hysol. Some nozzles are better than others at mixing the glue and the ones from Dreamworks seem to work best as they have what looks like a metal insert with finer "pitch" than the others and are longer than the standard "short " nozzles. I have had occasions when the Hysol has not hardened and its a pain as the glue has to be totally removed from the joint, cleaned up and start again. A couple of days ago I did my usual, prior to nozzle application, I forced glue out of the tubes and quite a lot of hardener, the brown stuff, came out before the white. When both were egressing equally I put on the nozzle squeezed out a couple of inches and started glueing, some of it STILL did not cure. Early this morning I repeated this and squeezed out six three inch long beads of glue, only the third and subsequent beads have really hardened, the first two have stayed soft and gummy. So if you are using Hysol don't be afraid to squeeze out at least eight inches of glue before tackling the joint, wasteful yes but it seems the only way to guarantee a good joint. Of course for small jobs hand mixing of equal amounts of brown and white works, but MUST be mixed very thoroughly.

Regards, David Gladwin.