A SET OF TWENTY LARGE FROG SCULPTURES THAT WERE PAINTED BY VARIOUS ARTISTS FOR A CHARITY ART TRAIL.​

Frogs

The Frog art trail project was one of the more physical pieces of mould making I’ve ever had to do. The whole frog was cast in clay, and we created a waste mould in order to get a solid fibreglass form. We spent a couple of days smoothing and shaping this form, and then started making our master mould.

The mould walls were created with clay, reinforced with modroc strips. The mould was made out of gelcoat, a layer of 225g/m matting, and then a layer of 600g/m matting to make it stronger. The feet of the frog proved to be the most challenging, because there were undercuts and hollows. Therefore, the feet were moulded in silicone, smoothed off with Isopropanol, and the jacket incorporated into the rest of the mould.

Fabrication of the casts was labour intensive. three of us would wax and release the fibreglass mould, apply gelcoat and chop strand, then lay up our fibreglass. We divided the mould into two halves, which we would then bolt together and close up with fibreglass strips after the two halves had cured sufficiently. Because of the nature of fibreglass moulds, we had to perform running repairs on chipped gelcoat whenever these problems presented themselves, but overall the mould held up extremely well. 

Once our casts were removed from the mould they required a lot of cleaning. We scrubbed them all with sugar soap and pumice powder, and after they were dried we were in a position to prime the sculpts. These were then sent to individual artists to add their own flair. This was a very sticky, messy piece of classic fibreglass casting, and I loved every minute of it.

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