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I think you are probably right, I will contact them.
Ann

I fired at 538c for 40mins. on the shelf, then at 815c for 2 hours in a stainless steel pan in activated carbon, I thought that it might be air bubbles
but there were so many of them, and I have...

Hi.
I fired my first pieces of sterling silver clay today, they have blistered really badly.
I wondered if anyone on here would know why this would happen, I followed the firing instructions....

No, I always ensure that items are thoroughly dry, I'm an Art Clay instructor. It's only recently started happening,
and I just wondered if anyone else had had this problem, and how to rectify it. I...

Hi.
Apologies if this has been asked previously, I have recently noticed that some of my silver clay is blistering when I fire it, I fire in a kiln.
Has anyone else had this problem?
Thanks
Ann

:) Cheers guys, experiment worked!

Thanks all of you very much for the information, it has been a big help.
Jill - those pieces are beautiful
Nic - thanks for the link to that site, amazing stuff.
I am helping someone else with...

Thanks George, is the ramp rate the time the kiln takes to get to temp? sorry to sound stupid but I'm not sure how to do that.
Ann

Hi. can someone tell me what is the highest temp. that ceramics can be fired, I want to edge a piece with silver clay.
Thankyou
Ann

She rolls the clay in her hands to make a smooth ball and puts it in a little plastic container, the type that acrylic paints come in, she say's that the clay keeps workable for longer.

Thankyou Vi. and Becci for your replies.

Vi. I am pleased someone feels as strongly as I do about this knowledge being imparted to the students in the classroom, and thankyou for the info. about...

Hi. I was about to ask a couple of questions regarding Kate Mckinnon's book and dvd, then I came across this thread! this book is revolutionary practically everything that I have been taught about...

Thanks for your help Nicci, I will have to ring them.

Thanks Jules, just checking out the links that you posted, from what I can see Birmingham office has more information for us newbies than Sheffield, unfortunately I registered with Sheffield,...

Thanks Carole, how much do they charge per item, and how long approx. before you get them back, if I send an open check do they take for special delivery to send them back?
sorry about the amount of...

I have just received my letter from Sheffield Assay Office, my hallmark is ready for me to start sending items to be marked, I know that I am probably being very thick here but the information seems...

Well, I am being very brave here but I want to have a go at hinges using metal clay.=:-O

Thanks Bridget, mines Sheffield, guess I will have to be patient.

Please can someone tell me how long do Assay offices usually take to make a hallmark?
I've had a look through previous posts and can't find the answer to this, I sent for mine weeks ago, received a...

Hi. Nicci, no it didn't offend me at all, I hadn't looked at it like that but know you come to mention it.
That cala lily is wonderful.

Thankyou for your lovely comments, all the other items are fab. isn't it fascinating all the different ideas on the same theme.
I love those flowers with tendrils Nic.

Whoops I didn't think I'd attached that pic. properly, never mind

This is the first time that I have joined in on a challeng aswell, here goes

http://d200fahol9mbkt.cloudfront.net/item/1436561/P1140070.JPG

Thanks for your help and advice everyone, you will be pleased to hear that I put them in yet another fresh lot of pickle and they are finally clean.

Do you mean that it wasn't put in fast enough?