Preparing the clay tile
Step 1 - get the right clay that we can work with - a low fire cone 04 clay
I get a product from Tuckers Pottery called Low White cone 04 clay - It comes in a box and two huge bags of clay - around 25.00 (there is enough clay to make tons of tiles- its a pre pugged clay which means well mixed
Step 2 - take a large chunk and I am lucky to have a rolling table but after rolling i transfer to a piece of drywall - I use that to roll out about 1/4" thick - I also use a silicone rolling pin to work finish it before I apply the stamp
Step 3 - check your thickness - no more than 1/4" thick
check your diameters so its large enough - to fit
Step 4 - lay stamp pattern side down - pat down a bit a bit- ok a lot - just lift a corner to make sure its deep - then slowly start from centre roll to top - then to bottom- you can peek a bit to see if the stamp is impressing - worst case you pull off and roll up the clay and rework it- I push down all over with my fingers and palm just to be sure
Step 5 - Once rolled - take a clay knife and trim the edges - if a bit ragged just run the knife down the edges to true them up
Step 6 - start to peel off the rubber stamp - it should come away pretty cleanly without lifting your clay -
Step 7 - do not move it from the drywall - -let it get leather hard - if interrupted at any time just put a damp cloth over your work- the drywall will suck the moisture out evenly from the bottom while the top drys
Step 8 - after about a day it should have hardened up a - if it starts to curl - place some weighted objects around the edges - not heavy enough to squish the pattern
The hard part is waiting for it to dry - need about 1 week so that its totally dry - its important before firing that the piece is totally dry
Step 1 - get the right clay that we can work with - a low fire cone 04 clay
I get a product from Tuckers Pottery called Low White cone 04 clay - It comes in a box and two huge bags of clay - around 25.00 (there is enough clay to make tons of tiles- its a pre pugged clay which means well mixed
Step 2 - take a large chunk and I am lucky to have a rolling table but after rolling i transfer to a piece of drywall - I use that to roll out about 1/4" thick - I also use a silicone rolling pin to work finish it before I apply the stamp
Step 3 - check your thickness - no more than 1/4" thick
check your diameters so its large enough - to fit
Step 4 - lay stamp pattern side down - pat down a bit a bit- ok a lot - just lift a corner to make sure its deep - then slowly start from centre roll to top - then to bottom- you can peek a bit to see if the stamp is impressing - worst case you pull off and roll up the clay and rework it- I push down all over with my fingers and palm just to be sure
Step 5 - Once rolled - take a clay knife and trim the edges - if a bit ragged just run the knife down the edges to true them up
Step 6 - start to peel off the rubber stamp - it should come away pretty cleanly without lifting your clay -
Step 7 - do not move it from the drywall - -let it get leather hard - if interrupted at any time just put a damp cloth over your work- the drywall will suck the moisture out evenly from the bottom while the top drys
Step 8 - after about a day it should have hardened up a - if it starts to curl - place some weighted objects around the edges - not heavy enough to squish the pattern
The hard part is waiting for it to dry - need about 1 week so that its totally dry - its important before firing that the piece is totally dry
Bisque Firing schedule
Once the clay is dry - the firing of the clay makes it a bisque what is needed for slumping -
Its what is called a Med cone 04 Bisque Firing
5 segments
Seg 1 325/hr to 1024 Hold 0
Seg 2 153/hr to 1112 Hold 0
Seg 3 180/hr to 1837 Hold 0
Seg 4 108/hr to 1945 Hold 0
Seg 5 150/hr to 1000 Hold 0
Once the clay is dry - the firing of the clay makes it a bisque what is needed for slumping -
Its what is called a Med cone 04 Bisque Firing
5 segments
Seg 1 325/hr to 1024 Hold 0
Seg 2 153/hr to 1112 Hold 0
Seg 3 180/hr to 1837 Hold 0
Seg 4 108/hr to 1945 Hold 0
Seg 5 150/hr to 1000 Hold 0
Its a long fire so be patient - dont peek and dont take out till under 100°F
Once you have it - if your using Boron Nitride spray as per instructions
Great clear instructions, thanks
ReplyDeleteSo i can make this mold and slump glass on it?
ReplyDeleteYes - I do - you can see this is an intricate patter - I also did a nutcracker stamp and skull stamp but make them about this size so the bottle can flatten out
DeleteThis looks great. I think I bought the same clay. I have made many slumping molds with this. Yes, waiting for it to dry is the hardest part. Where can I get rubber stamps this size ? Thanks for your tips !!
ReplyDeleteHavnt been updating in a while and just saw your question on the stamps - they are my own stamps I used to sell on Etsy but have not sold in over a year (hated etsy ) I may just start selling privately off my site by end of this year again
ReplyDeleteThis is very helpful, Thanks!!
ReplyDeleteDeborah, I purchased a different clay some time ago. Do you feel it will work also?
- AMACO 45047J High-Fire Moist Stoneware Clay, 38 White
https://a.co/d/bE7UJSt
-White stoneware clay that has some characteristics of porcelain
-Contains no grog, yet it has the strength for throwing large pieces
-The firing range is from cone 5 - cone 10
-Recommended glaze firing temperature at Cone 10
-Non-toxic and talc free
Thanks, Alan L
I was told that as long as the fired clay is higher than what your slumping on it should be fine - you could start with a smaller sampler
Delete