iandol on tue 15 jan 02
Dear Corbus Potgieter,
Thank you for you note. I am sure others on the list will be interested =
in my reply.
I think the way the word Resin is used can cause some confusion. I =
prefer to say Rosin when talking about making Resinate Lustres.
Resins are to the best of my knowledge forms of exudations from plants =
in general which set into solid lumps as well as a lot of the new =
synthetic materials which, when mixed, set to become hard materials, eg. =
Araldite Casting Resins.
I understand Rosin to be specific to coniferous trees which exude a =
balsam that can be distilled to give a spirit turpentine and leave a =
residue which sets to become a clear, yellow, amorphous material which =
melts at a fairly low temperature and is soluble in hot, light essential =
oils, eg lavender and eucalyptus.
Chemically Rosins seem to be either composed of Terpenes or Terpene =
Polymers and include stuff like Amber.
I think the thing to ask for is "Wood Resin", though my bags are clearly =
marked "Rosin" and it is not water soluble in the same way that Gum =
Arabic, or soluble in Alcohol as Shellac, which is regarded as a resin, =
is.
As you say, there is almost nothing in the literature about these =
decorative materials and so far I have had only mixed and very limited =
success in making them.
My best regards to you,
Ivor Lewis.
-----Original Message-----
From: Cobus Potgieter
To: Ivor Lewis
Date: Monday, 14 January 2002 11:03
Subject: Resinate Lustres
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Hi Ivor,
I sent this message to the general list. I only realised it after I =
sent it. Sometimes it takes a day or two to be posted. That is why I =
am sending it again, directly to you.
Regrards,
Cobus.
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Dear Ivor,
Can you also send the information to me? Textbook information about =
this
subject is very limited. Some recipes refer to pine resin, other to =
gum
arabic, and then I found one that referred to ROSIN. Is rosin just =
another
term for resin, or what is it?
I would appreciately your help greatly.
Regards,
Cobus Potgieter.
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NAMIBIA CERAMICS
http://www.orusovo.com/namceram
namceram@orusovo.com
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----- Original Message -----
From: "iandol"
To:
Sent: Sunday, January 13, 2002 8:00 AM
Subject: : Re: Resinate Lustre Science
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Dear Joan Ashworth,
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I was taught how to make Resin lustres by Greg Daly. Part of the =
information
I originally sent to Aliakbar contained his recipe, which comes by =
the way
from Cullen Parmellee if I recall the event correctly.
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Ferric (Iron3) chloride with Rosin gives a superb orange with a =
metallic
sheen on bathroom tiles which are a good, ready made,test tile for =
the low
temperature decorating materials.
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But the Chemistry of resinates is still a big mysterious black hole.
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Best regards,
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Ivor Lewis. Redhill, South Australia
Johanna DeMaine on thu 15 apr 10
It has been interesting to read Marci and Paul's comments regarding the
level of interest from ceramists in Overglaze techniques. I maintain a
website http://overglaze.info which looks at Overglaze from a ceramist's=3D=
20=3D
perspective. This is a long term project which is periodically updated. =
=3D
I
have recently added the article I was invited to write for The Journal of=
=3D
Australian Ceramics entitled "Working with Resinate Lustres"=3D20
Johanna DeMaine
http://johanna.demaine.org
http://overglaze.info
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