« Last Post by Big Al on March 01, 2015, 09:24:52 PM »
That takes me back. I used to work, indeed first job, in a chemist suppliers. They held a patent on making pumice stone..... Anyway another thing they did was small mouldings. So once I had cracked my initial task as packer and mail out bod I began to run these automatic machines. I ended up running two injection moulders and one dipper, all automatic. So I would sorts a few parcels, run to the moulding room, check the machines and sort, run back and so on, all day. I bet the dip moulding is much the same process I was in charge of, though not quite as complex as that shown. The problem was that the material had to cure for some weeks before it was fully flexible. To early and fresh, it would shear across the stress points. Now that might be a materials issue. In Chemist products many things have a short life expectancy, as they are more expensive to clean, than replace with another sterile packed new one. So cost was important. Apparently it is the latex, or flexible element of these moulding rubbers, that is significantly more expensive than the bulk of the material. So there is an endless attempt to reduce the latex element to keep the cost down. Not alot of people know dat.