This will be a three part mould, one piece for the front, the back will be two pieces with a split running down the middle. I first started by spraying my sculpture with a clear acrylic lacquer then once dried i built a clay wall, added locating holes then sprayed two coats of lacquer, this is to seal in the moisture of the clay, on to the wall making sure to cover up my sculpture as i did so. then once dry i gave the whole thing several coats of macwax then once that was dry i dusted it over with talcum powder, this is to absorb any moister still there and to help the gel coat to grip on to the sculpture.
then i painted on the gel coat making sure there were no air bubbles or missed areas, let that cure for about an hour then start laying up the fiberglass.
i first used some fiberglass tissue to get into the intricate areas of the nose, mouth and eyes just to make sure the gel coat was well supported without any air bubbles in those key areas. then i used three layers of fiberglass on the wall and two on the sculpture, the fiberglass was kept clear so that i can still see where to drill the bolt holes in the eyes, ears and top lip.
once the fiberglass had cured i removed to clay wall cleaned up any of the clay still left over on the fiberglass wall and sculpture, once that was done and all dried off i built the dividing wall down the back of the head and followed the procedure of lacquer macwax and talc but i also painted on a layer of jwax onto the fiberglass wall just for extra release when de-moulding, then i painted on the gel coat and then three layers on walls and two on sculpture of fiberglass.
cleaned up the walls and sculpture making sure to remove all trace of clay
no need for lacquer just Jwax on the fiberglass and several coats of macwax over the whole thing and some talc, then gel coat and fiberglass
No comments:
Post a Comment