Silicated Plaster Recipe Needed - WarmGlass.com

Silicated Plaster Recipe Needed

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
suntoys
Posts: 22
Joined: Sat Nov 29, 2003 12:17 pm
Location: Santa Cruz, CA

Silicated Plaster Recipe Needed

Postby suntoys » Sun Apr 18, 2004 1:19 pm

Does anybody have a recipe for the combination needed to mix silicate powder and casting plaster for mold making? Thank you.
SunToys

rosanna gusler
Posts: 730
Joined: Mon Mar 10, 2003 2:22 pm
Location: wanchese north carolina
Contact:

Postby rosanna gusler » Sun Apr 18, 2004 5:30 pm

i do it by weight. 1:1:1 . this is a fairly thick mix. you can reduce the dry a hair if you want. rosanna

suntoys
Posts: 22
Joined: Sat Nov 29, 2003 12:17 pm
Location: Santa Cruz, CA

Postby suntoys » Sun Apr 18, 2004 5:35 pm

Thank you very much. I hope that everybody that's looking at this post can appreciate this.
SunToys

Wallace Venable
Posts: 38
Joined: Sun Mar 09, 2003 8:34 pm
Location: Morgantown, WEST Virginia
Contact:

Postby Wallace Venable » Mon Apr 19, 2004 4:48 pm

I use equal parts of:
Plaster of Paris (from Lowes)
Diatomateous Earth (swimming pool filter media from Walmart)
to which I add about 5% kiln wash (Hot Line or Bullseye)

It may not be "the best" mix, but the only exotic stuff is the shelf wash, which you should already have.

This mix can be reused several times if kept below about 1450° F.

I've run over ten slumpson a single mold when bending stained glass panels for "Tiffany" replacements.
Wally Venable, Student of glass

Barbara Cashman
Posts: 151
Joined: Sun Mar 09, 2003 5:42 pm
Location: Greensboro NC
Contact:

Postby Barbara Cashman » Mon Apr 19, 2004 7:58 pm

Wallace Venable wrote:I use equal parts of:
Plaster of Paris (from Lowes)
Diatomateous Earth (swimming pool filter media from Walmart)
to which I add about 5% kiln wash (Hot Line or Bullseye)

It may not be "the best" mix, but the only exotic stuff is the shelf wash, which you should already have.

This mix can be reused several times if kept below about 1450° F.

I've run over ten slumpson a single mold when bending stained glass panels for "Tiffany" replacements.

Does this mixture shrink when you use specifically for the replacement bent panel lamps? - Barbara
Barbara J Cashman
http://www.glastile.com
Glass Tile Manufacturer


Post Reply

Return to “Techniques and Tools”

Who is online

Users browsing this forum: No registered users and 12 guests

Warm Glass

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