kiln wash residue - WarmGlass.com

kiln wash residue

This is the main board for discussing general techniques, tools, and processes for fusing, slumping, and related kiln-forming activities.

Moderators: Tony Smith, Brad Walker

Post Reply
Michael Stevens
Posts: 51
Joined: Thu Dec 26, 2019 2:52 pm

kiln wash residue

Postby Michael Stevens » Thu Apr 02, 2020 10:56 am

I got some grain pattern on.my glass bowl and some kiln wash won't seems imbedded, is the only solution to sandblast or etch cream and then fire pollish)
, if fire polish should I out it back. in the mold? will the shape be ruined if fire pollish

Joyce Walters
Posts: 78
Joined: Thu Nov 08, 2007 12:06 am
Location: Stevensville MT

Re: kiln wash residue

Postby Joyce Walters » Thu Apr 02, 2020 2:33 pm

First try scrubbing to get the kiln wash off. If that does not work then sandblasting should work. You will have a matte finish. Placing the bowl back in mold will not fire polish the back uniformly if at all. Lots of luck.
We hope all is well with you, and that some sense of normal is slowly coming back.
Joyce

Michael Stevens
Posts: 51
Joined: Thu Dec 26, 2019 2:52 pm

Re: kiln wash residue

Postby Michael Stevens » Thu Apr 02, 2020 5:41 pm

I've never fire polished something. just wondered how it would keep it's shape if heat up to. fire polish it. if I. put the bowl. upside down on the kiln shelf wouldn't it just flatten if I heated it up to. fire polish it? is there a way to keep the glossy finish and not ruin the bowl?

part of my problem is my kiln shelves have slight imperfections, so I layer kiln wash to compensate, maybe I need to smooth my kiln wash better. I sometimes get little white flecks embedded. which is annoying to remove. I could try to sand down my kiln shelves but I don't have any equipment that could sand them.

I have no access to commercial kiln wash, and kiln paper here isn't smooth that leaves an embedded pattern.

I miss being in USA where I can get all high quality mayetiso and tools. it's taken me 7. months to get everything I need here, between pottery and cooking supply I've sourced most things.

life here is weird, all streets are blocked and guarded, you aren't allowed to have guests. but being locked inside gives more time to do art.,

Marty
Posts: 851
Joined: Mon Mar 10, 2003 3:58 pm
Location: Maine
Contact:

Re: kiln wash residue

Postby Marty » Thu Apr 02, 2020 7:10 pm

Where is "here"?

All you need for the kiln shelves is sandpaper. Wet. Or dry with a good vacuum cleaner (and a face mask).
If you go to fire polish temps (1300F+) and your piece is not in the mold, it will deform. You need to support it.
One of the drawbacks to kilnforming is that you only get one easy side.

Michael Stevens
Posts: 51
Joined: Thu Dec 26, 2019 2:52 pm

Re: kiln wash residue

Postby Michael Stevens » Thu Apr 02, 2020 7:50 pm

I'm currently living in Beijing. it's so hard to. get good quality things here. I've wasted about 1000 dollars on faulty equipment and materials.

I miss being able to create things in the US. it was so easy to get what I need. but I'm learning to make everything myself. making molds is probably the hardest thing. i. don't even know what pottery plaster would be called, they only seem to make regular plaster. I made some molds from clay. but I'm not great at pottery.

I've made a lot of nice pieces but not sure they are marketable with the slight imperfections.

Joyce Walters
Posts: 78
Joined: Thu Nov 08, 2007 12:06 am
Location: Stevensville MT

Re: kiln wash residue

Postby Joyce Walters » Fri Apr 03, 2020 3:16 pm

Hi again Michael.
Can you find good sandpaper?
Can you receive packages?
Perhaps I can send fiber paper for some of the kiln shelf problems after shelves are sanded level.
Paper is light weight so postage should be cheap enough if customs fee isn't too expensive. I will try to check post office info.
Joyce

Joyce Walters
Posts: 78
Joined: Thu Nov 08, 2007 12:06 am
Location: Stevensville MT

Re: kiln wash residue

Postby Joyce Walters » Fri Apr 03, 2020 4:12 pm

Hi Michael.
What are the floor dimensions of your kiln(s)?
Kiln paper comes 5" by 5".
10" by 10".
20.5" by 20.5".
Looks like rolls could be problematic to ship vs large flat envelope.
Flat is easiest, USPS international.
Joyce

Michael Stevens
Posts: 51
Joined: Thu Dec 26, 2019 2:52 pm

Re: kiln wash residue

Postby Michael Stevens » Fri Apr 03, 2020 7:20 pm

thanks Joyce very kind of you.
I have a belt sander, so will try and smooth the shelves down. but as I live in Beijing I don't have space in my apartment to be blowing dust everywhere so I didn't want to do it unless necessary.


my shelves are 12x12. inches. I've thought about ordering thinfire or papyrus from Amazon, but shipping things can take a few months now.

my kiln wash recipe isnt as good as the commercial, I have to reapply everytime I full fuse and it's very powdery, I am using 60x40 recipe but its very flaky, maybe I could get a grainier alumina. I've tried painting it on thinner and do multiple layers on hot shelf that works better but time consuming. but I'll. keep trying.

there really aren't any shortcuts. better to take the time to get better results.
and kaoilin.

Joyce Walters
Posts: 78
Joined: Thu Nov 08, 2007 12:06 am
Location: Stevensville MT

Re: kiln wash residue

Postby Joyce Walters » Sat Apr 04, 2020 1:37 pm

Lots of luck with these difficult tools, molds and kiln wash.
If you want some kiln paper I will gladly send it to you because I have it.
beadedpony@bigsky.net
Joyce

Brad Walker
Site Admin
Posts: 1323
Joined: Fri Mar 07, 2003 9:33 pm
Location: North Carolina, USA
Contact:

Re: kiln wash residue

Postby Brad Walker » Sat Apr 04, 2020 2:04 pm

Michael,

According to the MSDS, Bullseye thinfire paper is manufactured in Japan by LINTEC Corporation under the name "Paper Ceraform M. " I don't know how difficult it is for you to get product from Japan, but if you want to try, LINTEC's contact information is on this MSDS: https://www.warm-glass.co.uk/images/pdf ... 0Sheet.pdf


Post Reply

Return to “Techniques and Tools”

Who is online

Users browsing this forum: Google [Bot] and 30 guests

Warm Glass

2575 Old Glory Road, Suite 700
Suite 700
Clemmons, NC 27012
Phone: (336) 712 8003
Email: wg@warmglass.com