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how to harden fiber paper molds
Posted: Tue Sep 30, 2003 5:13 am
by mikefromitaly
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
Posted: Tue Sep 30, 2003 7:39 am
by 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
Posted: Tue Sep 30, 2003 1:32 pm
by Joanne Owsley
[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!
Posted: Tue Sep 30, 2003 8:10 pm
by rosanna gusler
yes it needs kilnwash after rigidising. the silica must stick. rosanna