Now we put Glass-fibre and Polyester-Resin into the plaster mould. make sure no air bubbles are caught betweeen the palster and the fibremesh.
WARNING: Wear gloves while doing this! Cheap oneway gloves wil work fine, but otherwise you will have little glass-splinters burrowing into your skin and itching like hell. The Polyester-resin is also sticky like hell and worse than nay super-glue once set.
I used at least 4 layers of fibre, more in the middle where the Hoof has it's thickest part. You'll have to work rather quick and probably mix the resin twice and do it in two steps, because it hardens very fast. With the last layer you put the plastic piece ich placeand let the whole thing set. (That's what we see on the picture)
after the resin did set there is probably still a large bubbleof air between the Fibre-Part in the front and the plastic part in the back. This cavity can be easily filled with Polyester-resin so the whole thing becomes solid.
Here we see the Hoof freed from the plaster.
The mould is probably destroyed in the process. (at least I saw no way to get it out without a hammer and a pick) You'll also spend some time to clear all the details of the hoof from pieces of plaste which are probably stuck inside every little cavity, but luckily plaster is not very resilent and Glassfibre-plastic is, so don't bother to use the force ;-)