How much ridgidizer?

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Andrea
Posts: 4
Joined: Tue Sep 09, 2003 7:35 am
Location: WI

How much ridgidizer?

Post by Andrea »

I have been trying to make a few barrette molds using 1/4 inch fiber blanket and the alumina ridgidizer. I painted the ridgidizer on with a brush, both sides, allowed to dry and then burned off the binder. They were somewhat stiff but when I put the barrettes on and tried to slump they broke in the middle. What am I doing wrong? Thank you for your help.
Rebecca M.
Posts: 126
Joined: Fri Sep 12, 2003 12:15 pm
Location: Myrtle Beach
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Post by Rebecca M. »

This may not help with your question, I don't know anything about rigidizers, I'm quite new at this, but I made my barrette molds from Ceramaguard. I cut the shape of the barrettes that I get and stack them together, so I can slump one or many at the same time depending how many forms I stack horizontally. The best part is they never need kiln wash.
There might be a slight line on the underneath side of the slumped barrette, but that gets covered up by the clip anyway.
Peg
Posts: 74
Joined: Tue Apr 08, 2003 7:50 am
Location: Bristol, UK

Post by Peg »

When I use fibreboard I soak it in rigidiser to make a mould - the fiber is saturated with the liquid (and becomes soft and fragile till it's fired).
Maybe that's overkill, but it seems to work fine.

Peg
Jeri D
Posts: 65
Joined: Fri Mar 28, 2003 8:43 pm
Location: Martha's Vineyard.MA

Post by Jeri D »

Maybe I just chose the easy way out but i bought a large(wide) barrette mold and can fit 4 to 5 on it at a time . It's good to fill in those corner spaces too when I have my large molds in the kiln
jeri
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