Daniel Spruyt
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Daniel Spruyt's Discussions

Can one predict the appearance of a glaze? (part II: tri-axial graphs of the Flux, Glass-formers and Amfoteres)

Started this discussion. Last reply by Daniel Spruyt May 17, 2014. 5 Replies

In a previous post, I discussed briefly a method to predict -with some approximation - the possibility to predict the appearance of a glaze using the Si/Al ratio (and to some extend the SiB/Al…Continue

Can one predict the appearance of a glaze? (part I: The Si/Al ratio)

Started this discussion. Last reply by Tom Humphries Oct 19, 2016. 9 Replies

What do I mean by 'appearance': Will it be glossy, matte, satin matte, stony dry?What I don't mean by 'appearance': the color, the shade, mottling, floating... Statement of a scientist: 'At the…Continue

Sandblasting

Started this discussion. Last reply by Daniel Spruyt May 8, 2014. 3 Replies

SandblastingAs announced in the discussion about water etching, I will describe my -limited- experience about sandblasting. Sandblasting can be applied on bone-dry unfired clay, bisque and, on glazed…Continue

Keeping record of your work

Started this discussion. Last reply by Daniel Spruyt Apr 16, 2014. 2 Replies

OK, I give it another try...Integrated in my database mentioned before, I developed a system to evaluate glazes and it can - to some extend- be used as a glaze calculator. I use INSIGHT sometimes for…Continue

 

Daniel Spruyt's Page

Latest Activity

Daniel Spruyt replied to Lawrence Weathers's discussion Mocha Diffusoin
"I emphasize that all dicussions on spelial slips,pH control and so on are just rubbish...."
Sunday
Daniel Spruyt replied to Lawrence Weathers's discussion Mocha Diffusoin
"Keep in mind that the mlip on the pot must be fluid and still very wet"
Sunday
Daniel Spruyt replied to Lawrence Weathers's discussion Mocha Diffusoin
"To the stain or oxidesuspension I use approx 1 drop odetergent for 2-3 ml of stain suspension"
Sunday
Daniel Spruyt replied to Lawrence Weathers's discussion Mocha Diffusoin
"In my opinion one can obtain excellent Mocha diffusion without all that hassle of tobacco tea matching acidity and so on by just using a drop of household detergent. I made excellent diffusions adding a drop of TWEEN 80 ( a more…"
Jun 12
Daniel Spruyt posted photos
Nov 9, 2016
Tom Humphries replied to Daniel Spruyt's discussion Can one predict the appearance of a glaze? (part I: The Si/Al ratio)
"One thing I've realised recently is the power of colourants. I made a base glaze recently that I had tailored the si/al ratio to produced my desired level of shine. Adding 5% copper oxide made a drastic difference on the gloss level."
Oct 19, 2016
Daniel Spruyt replied to Daniel Spruyt's discussion Can one predict the appearance of a glaze? (part I: The Si/Al ratio)
"Obviously, it is better to use high purity ingredients if the price doesn't matter. I can imagine that it is even more the case for crystalline glazes. The only high purity ingredient I have is a batch of 5 kg CaCO3 laboratory grade because I…"
Aug 19, 2016
Tom Anderson replied to Daniel Spruyt's discussion Can one predict the appearance of a glaze? (part I: The Si/Al ratio)
"Daniel: Have you done any experimenting with high purity ingredients? Case in point: Imsil A-25 silica, XL500 french process zinc, or Minex 400 Nep Sy? I do crystalline glazes mostly, anything and everything effects outcome. However, I do mostly c6…"
Aug 18, 2016
Daniel Spruyt replied to Daniel Spruyt's discussion Can one predict the appearance of a glaze? (part I: The Si/Al ratio)
"Hi Tom, Indeed Si/Al ratios are important. But, I think you can have enough parameters at reach when dealing with glazes. It is very complex and one parameter alone does not tell everything. For instance I keep track of Si/Al SiB/Al,  Limits,…"
Aug 18, 2016
Tom Anderson replied to Daniel Spruyt's discussion Can one predict the appearance of a glaze? (part I: The Si/Al ratio)
"HI Daniel, pleasure to meet you sir. When I seen the thread topic "Si/Al" ratios, I had to stop in for a look. Very much appreciate you posting testing information and data on this topic. I often catch heat from other potters because I…"
Aug 17, 2016
Daniel Spruyt posted photos
May 6, 2016
Margene Lindhorst and Daniel Spruyt are now friends
Mar 27, 2016
Daniel Spruyt left a comment for Margene Lindhorst
"(Copy from photo page) item 160220-2 It is indeed one of my favorites! Here is the recipe: Dolomite: 23.3 Spodumene: 23.3 Frit P3134: 6.8 Ball Clay: 23.3 Silica: 23.3 add: Red Iron Oxide: 1 Yellow Ochre 3 Tin Oxide: 5"
Mar 27, 2016
Daniel Spruyt commented on Daniel Spruyt's photo
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160220-2

"It is indeed one of my favorites! Here is the recipe: Dolomite: 23.3 Spodumene: 23.3 Frit P3134: 6.8 Ball Clay: 23.3 Silica: 23.3 add: Red Iron Oxide: 1 Yellow Ochre 3 Tin Oxide: 5"
Mar 27, 2016
Margene Lindhorst commented on Daniel Spruyt's photo
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160220-2

"I'd like to try out this glaze. It breaks nicely and I love the specks.  It makes me want to hold it."
Mar 26, 2016
Daniel Spruyt commented on Paula Diaz-Sylvester's photo
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Flower power

"Great finish!!"
Mar 7, 2016

Profile Information

What is your current involvement with electric fired ceramics? (long answer encouraged)
Bisque firing.
Glaze firing with gas kiln
see personal website:
http://users.telenet.be/DannySpruyt/index.html
All our content is viewable by the public. Why do you want to be a member, when you can already see everything as a non-member?
Participate with my experience.
Learn more
Where do you work on your ceramics projects?
home studio
Do you have your own, or participate in other ceramics Websites:
http://ceramicartsdaily.org/
How did you find this network?
referred by friend

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Daniel Spruyt's Blog

Want to spray unsieved glazes?

Posted on April 11, 2014 at 11:00am 2 Comments

If you want to have speckled glazes where the specks are generated by particles in the glaze, you should not ball mill or sieve the glaze.

What if you want to spray these glazes anyway? The conventional spray gun will be clogged quickly!



Solution: the good old vaporizer !



Two tubes of about 1/4” at a right angle and compressed air of about 50-60 psi will do (you can even use your lungs! but you need a lot breath!)



I had an old pistol for inflating tires…

Continue
 
 
 

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Use These Links to Support Us

Members have had great things to say about John Britt's new book, Mid-Range Glazes. Click the image to buy from Amazon.com

Purchase Glazes Cone 6 by Michael Bailey, The Potters Book of Glaze Recipes by Emmanuel Cooper, or Making Marks by Robin Hopper, all available at amazon.comMastering Cone 6 Glazes by John Hesselberth & Ron Roy is now out of print.

Harbor Freight is a great place to find unbeatable prices for better HVLP spray guns with stainless steel parts and serviceable economy models, as well as detail guns, all tested by our members for spraying glazes, as well as compressors to power the guns. As yet no one has tested and commented on the remarkably inexpensive air brushes at harbor freight.

The critter siphon gun is a spray alternative that is well liked by some of our members, and is available at amazon.

Amazon is also a competitive source for photo light tents for shooting professional quality pictures of your work. They also have the EZ Cube brand favored by several of our members. You might also want to purchase the book Photographing Arts, Crafts and Collectibles . . .

If you are up to creating videos of your work or techniques you might want to invest in a flip video camera

Following are a few scales useful for potters. Your final price could be less or more - things change.

American Weigh Black Blade Digital Scale, 1000g X 0.1g $11.08 

For the non-digitally inclined the old standard Ohaus Triple Pro Mechanical Triple Beam Balance, 2610g x 0.1g, with Tare $169.00

And finally a low cost clone of the OHaus. The Adam Equipment TBB2610T Triple Beam Mechanical Balance With Tare Beam $99.62

ebay is a great alternative for many tools and the equipment used in the ceramics studio - kilns, wheels, extruders, slab rollers are often listed there both new and used.

Tips for Members

If you just want to spout off, it is best accomplished as a blog posting. If you want to get more guidance and ideas from other members, ask a question as a new discussion topic. In the upper right corner of the lists for both types of posting, you will find an "+Add " button. Clicking it will open an editor where you create your posting. 4/16/2014

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