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question regarding ron roy's floating blue variation #1

updated tue 5 sep 00

 

L. P. Skeen on sun 3 sep 00


Sue,

When you let a glaze bucket sit, even w/ a lid on, evaporation occurs.
This has happened to me w/ the same glaze. It will crawl off the pots if
you fire them like they are now, so scrape the glaze off, add a little water
to the bucket and mix well, then re-glaze. Also, just like the old FB, this
glaze will run like an escaped convict if you get it on too thick. Ask me
how I know this :(
----- Original Message -----
From: Sue Beach
To:
Sent: Sunday, September 03, 2000 11:11 AM
Subject: Question regarding Ron Roy's Floating Blue Variation #1


> After experimenting with small batches of Ron Roy's Floating Blue
variation
> #1, I took the plunge in June and mixed a 5000 gram batch. Glazed with it
> for several different firings and everything looked just great. Then I
> had a break of about a month when I didn't do any glazing at all.
> Yesterday, I finally had a chance to glaze and the pots I glazed with
> RRFBlue#1 all show crazing in the raw glaze - it has cracked all over.
One
> pot is so bad it looks like old paint peeling off a wooden door! So my
> questions are:
>
> #1 What happened to my bucket of glaze to make it change and is there
> anything I can do to fix it? Or do I have almost 5000 grams of glaze that
> goes into the mystery bucket?
>
> #2 How can I fix the pots I've glazed already? Can they be fired like
> this or will the glaze coat be faulty?
>
> I fire ^6 oxidation. The glaze recipe is:
>
> Ron Roy Floating Blue Variation #1
>
> Nepheline Syenite 41
> Gerstley Borate 17
> Frit 3134 13
> Flint 18
> EPK 11
>
> add:
> Red Iron Oxide 2
> Cobalt Carbonate 1.5
> Rutile 4
>
> Thanks!
>
> Sue Beach
> in central Indiana where Summer has finally arrived
>
>
>
>
>
> Sue Beach
> Muncie, IN
> sbeach@iquest.net
> http://members.iquest.net/~sbeach/index.html
> http://bsuvc.bsu.edu/~00sdbeach/index.html
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
>

Sue Beach on sun 3 sep 00


After experimenting with small batches of Ron Roy's Floating Blue variation
#1, I took the plunge in June and mixed a 5000 gram batch. Glazed with it
for several different firings and everything looked just great. Then I
had a break of about a month when I didn't do any glazing at all.
Yesterday, I finally had a chance to glaze and the pots I glazed with
RRFBlue#1 all show crazing in the raw glaze - it has cracked all over. One
pot is so bad it looks like old paint peeling off a wooden door! So my
questions are:

#1 What happened to my bucket of glaze to make it change and is there
anything I can do to fix it? Or do I have almost 5000 grams of glaze that
goes into the mystery bucket?

#2 How can I fix the pots I've glazed already? Can they be fired like
this or will the glaze coat be faulty?

I fire ^6 oxidation. The glaze recipe is:

Ron Roy Floating Blue Variation #1

Nepheline Syenite 41
Gerstley Borate 17
Frit 3134 13
Flint 18
EPK 11

add:
Red Iron Oxide 2
Cobalt Carbonate 1.5
Rutile 4

Thanks!

Sue Beach
in central Indiana where Summer has finally arrived





Sue Beach
Muncie, IN
sbeach@iquest.net
http://members.iquest.net/~sbeach/index.html
http://bsuvc.bsu.edu/~00sdbeach/index.html

Bill Raymond on sun 3 sep 00


Sue, I know that others will more then likely give all kinds of tech.
advice, but the only thing you need to is to check thickness of your glaze.
I've been useing the floating blue glaze for about four years have never had
a problem with it, but if I don't use it on a regular bases I find that I
need to add so water. Your glaze looks like peeling paint because it's too
thick, wash it off let the pots dry and start over. I hope this helps .
Josie
-----Original Message-----
From: Sue Beach
To: CLAYART@LSV.CERAMICS.ORG
Date: Sunday, September 03, 2000 1:16 PM
Subject: Question regarding Ron Roy's Floating Blue Variation #1


>After experimenting with small batches of Ron Roy's Floating Blue variation
>#1, I took the plunge in June and mixed a 5000 gram batch. Glazed with it
>for several different firings and everything looked just great. Then I
>had a break of about a month when I didn't do any glazing at all.
>Yesterday, I finally had a chance to glaze and the pots I glazed with
>RRFBlue#1 all show crazing in the raw glaze - it has cracked all over. One
>pot is so bad it looks like old paint peeling off a wooden door! So my
>questions are:
>
>#1 What happened to my bucket of glaze to make it change and is there
>anything I can do to fix it? Or do I have almost 5000 grams of glaze that
>goes into the mystery bucket?
>
>#2 How can I fix the pots I've glazed already? Can they be fired like
>this or will the glaze coat be faulty?
>
>I fire ^6 oxidation. The glaze recipe is:
>
>Ron Roy Floating Blue Variation #1
>
>Nepheline Syenite 41
>Gerstley Borate 17
>Frit 3134 13
>Flint 18
>EPK 11
>
>add:
>Red Iron Oxide 2
>Cobalt Carbonate 1.5
>Rutile 4
>
>Thanks!
>
>Sue Beach
>in central Indiana where Summer has finally arrived
>
>
>
>
>
>Sue Beach
>Muncie, IN
>sbeach@iquest.net
>http://members.iquest.net/~sbeach/index.html
>http://bsuvc.bsu.edu/~00sdbeach/index.html
>
>___________________________________________________________________________
___
>Send postings to clayart@lsv.ceramics.org
>
>You may look at the archives for the list or change your subscription
>settings from http://www.ceramics.org/clayart/
>
>Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.

ferenc jakab on mon 4 sep 00


> RRFBlue#1 all show crazing in the raw glaze - it has cracked all over.
One
> pot is so bad it looks like old paint peeling off a wooden door! So my
> questions are:
>
> #1 What happened to my bucket of glaze to make it change and is there
> anything I can do to fix it? Or do I have almost 5000 grams of glaze that
> goes into the mystery bucket?
>
Sue,

Have you been using this recipe for raw glazing? I'm surprised it didn't do
that before. For raw glaze it needs about 15-20% clay(Kaolin). My answer
comes from the Australian time zone so I expect that others will already be
answering your query.
Feri.

Lorraine Pierce on mon 4 sep 00


Hi there...you might try RR Floating Blue #3, changing the EPK 20 to Ball
Clay (OM#4) if you are raw glazing. I found this glaze , #3, extremely
reliable when fired on bisque ware in oxidation in a variety of kilns fired
from ^5-7. Years ago when I fired raw I found that changing the kaolin to
ball clay worked well when adjusting my glazes...the results were fine. My
clay body was best glazed when bone dry, and not having the advantage of the
Clayart gurus, I also used an hydrometer!

Dennis Parks' book, A Potter's Guide to Raw Glazing and Oil Firing,
published in '79 was my 'how to' guide and his methods are applicable today.
I think its time to try it again, now that I do not have the ware of
workshop members to consider. Lori in New Port Richey, Fl.