G Obata COLUMBIA az NEWSLETTER bc potters November/December 2002 Volume 38 Number 10 Trudy Ellen Golley Paperplaster Moulds and Unconventional Clay Techniques Is the prospect of making plaster moulds so over- whelming that it prohibits you from using plaster moulds at all? Are you afraid of plaster moulds? One might well ask these questions of the studio based ceramic artist. In the carly days of my studio practice | struggled with large moulds that Iwas hardly able to lift empty Iect abone filled to the brim with casting slip, | filled my shors with liquid plaster on several occasions when cottles didn't hold. In avoidance, | found ways and means of mak- ing the objects | wanted with- out having to resort to mouldmaking technology, even though I knew that the moulds, once minke, would prove very liberating. Plaster moulds were not my ‘friends’ wntil | began using paperplaster. In 194, I was invited to par- Deer College, Red Deer, Al- berta, I had read the article by Rosette Gault in Ceramics Monthly (July, 1993) about a revolutionary new process she was calling paperclay and went to the residency with the intention of exploring ideas, materials and methods that were new to my practice. AsT began my own experimentation | tried a variety of different materials for the addition of paper fibre to the clay. I tried mulched up newspapers, shredded photocopier paper, toilet paper as well as dry cellu- lose insulation. The cellulose insulation at that point seemed to be the most direct method and suited my purposes eminently. 17.0% 14.0 em ae apne tvnal Ast Trady Golley Karyorad with the paperplaster enables me to make Hcipateinthe International Art- 1990, mid-range stoneware =a large mould one day and use it the next. istinResidenceprogramatRed fired in oxidation, high One of my co-residents asked about the cellulose fibre | was using and wondered whether it might not work as an additive to her plaster. It seemed a good question. Would the cellulose fibre lend the same properties to the plaster that tt lent to clay? Would it make the plaster stronger without dis- turbing its properties of absorbency? We used some of the dry cellulose fibre, mixed it into the plaster batch and smeared it onto the clay model. It worked beautifully. The mould was both light and durable. Since then I have been working with this paperplaster to make almost all of my slipcasting and pressmoulding moulds, The advantage, for me, of making paperplaster moulds has been that | can make large moulds very quickly and directly. I tend to be impatient when | have an iden and want to be able to implement it as soon as possible. Con- ventional plaster moulds may take a week or more to dry completely but working Tredy Galley barium copper glaze. 58.0» Trudy Golley Untitled Figure 1999, mid-range oxidation, slips and glaze. H 160.0 cm