TWO GLAZE FIRING.
If you have two glazes at two different temperatures/firing ranges use the lowest for example 1.1110 and 2.1160 use number one.
One of my tests has two glazes on it with firing ranges which are extremely far apart.
1.1040 and 2.1260 – I have fired it at 1150 as a test.
I have recently bought a glaze stain (orange tango) and the instructions are – HIGH FIRE.
I have fired it at 1260 and it has fired to a really bright orange exactly what i wanted but its bubbly?.
Currently working out another temperature for the stain.
I have always been interested in how to get a glaze to run here are two ways i have found.
1.Use a stoneware glaze really thick at the top, it can withstand the temperature but cant withstand the weight of the glaze.
2. Earthenware glaze will run fire higher than 1040/1060 but will be really thin at the top.
Ducks and two lone turtles ready for bisque firing.
This is a glaze i have mixed by adding a stain to a normal clear earthenware glaze-
80 lead bisicalate
20 cornish stone
10 tango stain
im not to sure on why it has bubbled but the instructions just said HIGH FIRE
i have put them through on 1260degs and might put them through a little lower next time.
Gold leaf and yellow porcelain painter and bisque fired.
yellow imprint piece is to see how the glaze worked on an uneven holey surface and it has been great no lumps or bubbles, the red dot is a test for the numbers that are going to be on the back of some of the ducks – Maruba ceramica (ceramic paint) the lines at the side are the pens again and testing different colours on a bright backgrounds.
Minature ducks and turtles; handmade.
To the right is a wavy clay piece which will soon be a doritos packet, which have also made an apperance on a beach following a container being washed up on shore!
There has also been reports of bowling ball and bouys being washed up too.
Casting a ‘soap on a rope’ duck.
This is purely made for slipcasting processes, i have used clay as a base, potters plaster for the cast, wood for the sides, c;ay to fill the gaps, rope to hold it together and soap to stop the two moulds from bonding.
i will upload the pictures of the finished duck before firing when the mould is dry!
I have added a link below of somebody on wordpress documenting the step by step tutorial on bow to make a ceramic slipcast mould.
Curt is a beachcomber, so much so that he tracks ships, containers and merchandise that is afloat. He has studied jetstreams and garbage patches within the worlds oceans, his most memorable finds were the container in 1992 carrying 28,000 plastic bath tous which were being imported from china, floating away from the boat was rubber ducks, turtles beavers and frogs to then reach british shores 15 years later!
Having a swim in the sink!