how to harden fiber paper molds

mikefromitaly · Post by **mikefromitaly** » Tue Sep 30, 2003 5:13 am

Hello friends,
i have bought form a local supplier fiber paper 15 millimeter and i did a mold but it is too much fragile...i have bought fiber mold hardner but i do not know how might use it.....

someone could explein procedure to harden my molds?

any helps will be appreciate.mike form italy

rosanna gusler · Post by **rosanna gusler** » Tue Sep 30, 2003 7:39 am

hi mike, i put my mold on a surface where it can stay for a while. i pour the hardner on it untill it will not hold any more. let it dry. fire it to about 1300. i do not prefire the fiberpaper before hardening. sometimes i need to apply more hardener and fire a second time. then kilnwash and use. rosanna

Joanne Owsley · Post by **Joanne Owsley** » Tue Sep 30, 2003 1:32 pm

[quote="rosanna gusler"]hi mike, i put my mold on a surface where it can stay for a while. i pour the hardner on it untill it will not hold any more. let it dry. fire it to about 1300. i do not prefire the fiberpaper before hardening. sometimes i need to apply more hardener and fire a second time. then kilnwash and use. rosanna[/quote]

Does the hardner somehow change the fiberpaper so that it requires kilnwash after hardening? I've not used a rigidized fiberpaper mold before, but am planning to soon. I wasn't thinking that the fiber would require kilnwash, as I fire on fiberpaper without kw all the time.

I would really appreciate it if you would elaborate on this!

rosanna gusler · Post by **rosanna gusler** » Tue Sep 30, 2003 8:10 pm

yes it needs kilnwash after rigidising. the silica must stick. rosanna