For the love of silver…for the love of life!!

Posts tagged ‘moulds’

More Silver Shells

Thing-a-Day   Day 9

Today I decided to make a second shell of each type out of Precious Metal Clay..after all, if they turned out fine I would then have 2 pairs of silver shells suitable for earrings…and if they didn’t really match at the end of the day, I will have a collection of silver shell charms to hang on some of my charm bracelets or make summer themed cluster pendants from, with the addition of a few well chosen beads and pearls. I also cleaned up all the shells a little more and drilled tiny holes into the ends of them and embedded handmade jumprings on pegs into them, using PMC slip.

When all was dry I fired up the kiln and popped them in.

When I was making the shells I put a small ball of combustible material into the centre of each piece as I was casting them in the mould. This meant that when the pieces were in the kiln the combustible material would burn off leaving a hollow centre to the shells. This makes the shells look more authentic when they are fired because you can see into them rather than them being a solid lump.

This is a photo of the shells after they have been fired and given a quick brush with a brass brush. They need to be given a good polish up before I start to try and enamel them…but I don’t have time for that today.

I am very pleased with the way they have turned out…and, bearing in mind that this photo of them is HUGE in comparison to their actual size the little pock marks that you can see are hardly noticeable with the naked eye. That said – nothing in nature is perfectly flawless – so I can live with a few little marks!!

Hopefully tomorrow I will get some enamelling done!

Day 8 – Making Moulds for Precious Metal Clay casts.

I think I might have found a quick way for transferring my posts for Thing-a-Day from Posterous to here…I hope this works!!…

Day 8 – Making moulds for Precious Metal Clay casts.
Last week I received a commission to make a pair of silver earrings for a lady who wanted to have a pair of earrings featuring shells. She wasn’t 100% sure what she wanted – except that she didn’t want them to be very long and she wanted shells…preferably pink shells.

Well, I scoured the internet trying to find somewhere that I could get tiny pink shells that might work well for this particular commission – but to no avail. So I phoned the lady back and asked if she would be willing to let me experiment a bit with a few ideas before coming up with a final design. I also asked if she would consider having silver shells instead of real seashells. She seemed to be very happy to let me play! And so this commission is now officially part of ‘Thing-a-Day’.

It isn’t the first time that I have taken moulds from shells and cast precious metal clay silver shells from them – and they always work out pretty well – so I was quite confident to make the 2 piece moulds. I use a product called Siligum, manufactured by Gedeo to create the mould and as it dries to a flexible material there is no problem with having undercuts in the shape to be cast. It is really simple to do and the moulding material sets within 5 minutes.

I have cast 2 different shell types (so she can have a choice) and both of them are really quite small – measuring about 1.8cm (about 3/4″), but when the PMC silver has been fired in the kiln it will shrink by about 10% so making the shells a little smaller still. So I think these will ultimately be a good size for a pair of earrings.

I have cast one shell of each type today and after drying them have fettled down the inevitable seam line where the 2 halves of the mould joined but otherwise have left them unfinished.

Tomorrow, I will tidy them up a bit further and, if it is not too cold to work in my ‘Studio’ shed, I will fire them and possibly start experimenting with enamelling them to see if I can get a pink hue. I have a lot of blue and green enamels as these are my favourite colours and they are fairly consistent at producing good results…I tend to steer clear of red colours though, as they never work very well for me. So – although I don’t actually have a pink enamel, I believe that flux enamel has a bit of a peachy pink cast to it when fired onto fine silver..so I will give that a go!

I’m really quite excited! Roll on tomorrow!!

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