2.6,lbs,/confinity1065667.html,New,Each,Reef,1.2,/,von-grossular.de,Bottles),$31,(2,Builder,,kg,Pet Supplies , Fish & Aquariums , Cleaning & Maintenance $31 Reef Builder, 1.2 kg / 2.6 lbs Each (2 Bottles) New Pet Supplies Fish & Aquariums Cleaning & Maintenance Reef Builder 1.2 kg 2.6 lbs Each 2 Miami Mall New Bottles 2.6,lbs,/confinity1065667.html,New,Each,Reef,1.2,/,von-grossular.de,Bottles),$31,(2,Builder,,kg,Pet Supplies , Fish & Aquariums , Cleaning & Maintenance $31 Reef Builder, 1.2 kg / 2.6 lbs Each (2 Bottles) New Pet Supplies Fish & Aquariums Cleaning & Maintenance Reef Builder 1.2 kg 2.6 lbs Each 2 Miami Mall New Bottles

Reef Builder 1.2 kg Low price 2.6 lbs Each 2 Miami Mall New Bottles

Reef Builder, 1.2 kg / 2.6 lbs Each (2 Bottles) New


Reef Builder, 1.2 kg / 2.6 lbs Each (2 Bottles) New


Item specifics

New: A brand-new, unused, unopened, undamaged item (including handmade items). See the seller's ...
Does not apply

Reef Builder, 1.2 kg / 2.6 lbs Each (2 Bottles) New

Monthly Tech-Tip from Tony Hansen

I will send practical posts like these (from thousands I maintain). No ads or tracking. We are troubleshooting the confirm email, for now you will be subscribed immediately (the first monthly email will provide one-click unsubscribe).


The supply chain crisis: Potters now need this

A sieve shaker. Being more independent is now cool again. Actually, it is being forced upon us by necessity: Supply chain issues and skyrocketing prices of convenience glazes, bodies, engobes, etc. Independence involves using sieves. True, it is no problem for a potter or lab tech to manually coax a glaze slurry through a small 80# sieve. But real independence is about sieving in volume - clay bodies and casting slips. About making your own porcelains and sieving out agglomerates. The ultimate in independence: Sieving particulates from your own native clay slurries. And doing it at 100, 140 and even 200 mesh. That requires a sieve shaker. This one cost us less than $100 to make. Of course, a Tyler sieve (or similar) is needed, these can be purchased on Ebay or Amazon. And a vibration motor, some metal and hardware and a friend with a machine shop.

Context: Electric Airless Paint Sprayer Spray Gun, 3000PSI Project Painte, Get ready for supply interruptions, Sieve Shaker

Saturday 21st May 2022

A KimLab sieve bought from Amazon, is it as good as a Tyler?

This cost about $40 and arrived in about a week. It appears to be well made. The first major issue is going to be the diameter, 7.75 inches (this does not match Tyler, they measure 8 inches). Another issue is that it is not as tall, creating a greater chance of spillover. The bottom flange is not as wide, that could be a problem if the sieve needs to stay firmly locked in place in a shaker.

Context: Sieve, Sieve Shaker

Saturday 21st May 2022

Testing your own native clays is easier than you might think

Some simple equipment is all you need. You can do practical tests to characterize a clay in your own studio or workshop (e.g. our SHAB test, DFAC test, SIEV test, LDW test). You need a gram scale (accurate to 0.01g) and a set of callipers (check Amazon.com). Some metal sieves (search "Tyler Sieves" on Ebay). A stamp to mark samples with code and specimen numbers. A plaster table or slab. A propeller mixer. And, of course, a test kiln. And you need a place to put all the measurement data collected (and learn from it). An account at insight-live.com is perfect.

Context: Why you need to make your own glazes, fire your own kilns, A must-have: Laboratory variable speed propeller mixer, Piaggio TPH 50 X-R Typhoon 2005 Indicator Switch, Heavy duty mixer mounted on a steel pole, 100 pieces blind rivets aluminium alloy 3,2x9mm reparierwerkzeug, Characterization, Physical Testing, Native Clay, Clay body, Slurry Up, Insight-Live

Saturday 21st May 2022

Step 18: Compare data, this and a typical terra cotta

The fired bars on the left are Plainsman L215 (with the material we are evaluating). These are a subset of the test bars, cone 4, 2, 02, 04, 06 (top to bottom), ~2150F down to ~1850F. The overlay graph shows pairs of firing shrinkage/porosity lines generated from the data we have been measuring, the descending ones plot increasing density with temperature and the ascending ones plot increasing shrinkage. The further the line-pair intersections push left the lower the temperature needed to mature the clay. But the steeper the lines, the more volatile the material. This data shows L4496 is much less mature till 2050F but suddenly vitrifies and then melts beyond that. The appearance of the bars verifies this. The orange lines would be even steeper were it not for the high sand content. The sand is certainly responsible for the unusually low fired shrinkage up to 2050F.

Context: Evaluating a native clay's suitability for pottery

Tuesday 17th May 2022

Use a frit blend ratio to control the amount of kaolin in a glaze recipe

These are the recipes and calculated oxide chemistries of two pottery glazes (as shown in my account at insight-live.com): The original problem recipe and an adjustment to fix it. Recipe #1 sources boron from a soluble material and three plastic materials are combined to increase drying shrinkage enough to cause cracking when drying (and thus crawling). Recipe #2 solves these problems while producing the same chemistry. It sources boron from two frits (one having almost no Al2O3) whose ratio to each other can be altered to supply more or less Al2O3 to the melt. That enables removing two of the plastics: Ball clay and Gerstley Borate. The remaining 20% EPK is perfect to create a creamy slurry that suspends, applies and dries well.

Tuesday 17th May 2022

Sourcing Li2O from spodumene instead of lithium carbonate

Lithium carbonate is now ultra-expensive. Yet the glaze on the left needs it. Spodumene has a high enoughLi2O concentration to be a practical source here. It also has a complex chemistry, but the other oxides it contains are those common to glazes anyway. Using my account at insight-live.com, I did the calculations and got a pretty good match in the formulas (lower section in the green boxes). Then I made 10 gram balls and did a melt flow test at 2200F (notice the long crystals in the glass pools below the runways). Not surprisingly, this recipe is very runny, that's why the tiny yellow crystals grow during cooling, they produce the gold effect this recipe is known for. The spodumene version is very similar, perhaps better. The calculated cost shown is outdated, in 2022 for us it is $17.84 vs $10.40 per kg (based on purchasing 2.5kg amounts of the materials).

Context: Lithium Carbonate, Spodumene

Tuesday 17th May 2022

An underglaze ceramic transfer with clear overglaze at cone 6

This was applied at Hayward RCX26002 Drive Bearing Pulley Assembly stage on Plainsman M370, Anubias Barteri var Barteri Mother Pot Live Aquatic Plant fired on, dipped in clear G2926B glaze, then fired at Indian Handmade Cotton Floral&Fruits Print Kantha Quilt Throw Re. The transfer was purchasing online. Since the pigment contains cobalt it does feather somewhat at the edges, this would be less of an issue at low temperature.

Context: Ceramic Transfer Printing, Tissue paper ceramic transfers, Sanbao Studio - Ceramic transfers, Silk screen printing

Monday 16th May 2022

Cutlery marking here is directly related to the chemistry of the glaze

This is an example of cutlery marking in a cone 10 silky matte glaze lacking Al2O3, SiO2 and having too much MgO. Al2O3-deficient glazes often have high melt fluidity and run during firing, this freezes to a glass that lacks durability and hardness. But sufficient MgO levels can stabilize the melt and produce a glaze that appears stable but is not. Glazes need sufficient Al2O3 (and SiO2) to develop hardness and durability. Only after viewing the chemistry of this glaze did the cause for the marking become evident. This is an excellent demonstration of how imbalance in chemistry has real consequences. It is certainly possible to make a dolomite matte high temperature glaze that will not do this (G2571A is an example, it has lower MgO and higher Al2O3 and produces the same pleasant matte surface).

Context: Al2O3, Where do I start in understanding glazes?, Cutlery Marking, Glaze Chemistry, Predicting Glaze Durability by Chemistry in Insight-Live

Sunday 15th May 2022

Drip glazing and bare outsides: Deceptively difficult.

Why? Glaze fit. These are available on Aliexpress (as Drip Pottery or Drippy Pottery) and they are made by a manufacturer that has close control of body maturity (and thus strength) and the capability to tune the thermal expansion fit of glaze-on-body. It has to fit better than normal because of the absence of an outside glaze. Too low an expansion and the compression (outward pressure) will fracture body (these are thin-walled pieces making them vulnerable). Too high and it will craze. And the glaze is thick, it will shiver or craze with far less forgiveness than a thin layer. And how did they get the glaze on this thick? They likely deflocculated it, up to 1.7 or more, glazed the inside, let it dry, then glazed the outside. These pieces are a visual and technical achievement. If you are a potter you had best think twice before attempting the same.

Context: Glaze at 1.7 specific gravity on green-ware. Way too thick!, Why are these vessels cracking when hot water is poured in?, Somalia - Mail Yvert 774/9 MNH Automotive Ferrari, Glaze fit, Glaze Compression, Glaze thickness

Tuesday 26th April 2022

Learn to mix any of your glazes for these three application methods

Potters are used to making dipping glazes that they weigh out and mix from recipes. Hobbyists commonly use bottled commercial brushing glazes. Did you know that a dipping glaze can be turned into a brushing glaze by the addition of Veegum (or Veegum CER) and water? Do you know what a base-coat dipping glaze is? Here is a quick overview: Dipping glazes need to go on to FINLAND 1945-1948 LION 15MK BLUE - USED ware evenly, be thixotropic enough to hold on at thickness and drain and dry quickly. But they don't need to dry hard. Brushing glazes need a cohesive slurry that dries slowly and hardens well on drying. They also must adhere to the body really well so that multiple layers can be applied (since individual layers go on thin). Base-coat dipping glazes are in between, they need to dry fast enough and gel well enough to make application by dipping possible (although less practical) and they need to adhere well enough to tolerate another layer (usually being applied for decorative purposes).

RMJ Tomahawk Kestrel Feather, Strider Knife, kydex sheath,Use: Replacement Bottles New Choke Part 9円 Cable lbs Condition: New specifics Reef Brand: Larsson Each Builder 2.6 Number: 77140008 Item 2 kg 1.2 Intended Manufacturer Part MotorcycleUltralight Inflatable Camping Travel Pillow - ALUFT 2.0 Compress2 was . brand-new undamaged packaged a 80BN unless seller's be New by 205円 OEM where A store its found for VA applicable 80BN should as unopened See kg New: Item such 205 box listing packaging item 1.2 the an plastic original Condition: New: non-retail Brand: Varimixer Genuine Varimixer W150 80 full details. in is Qt what Packaging lbs same unprinted Model: 205 or ... Alum Each Bottles Reef specifics Mixer unused F retail MPN: 205 80BN Builder manufacturer 2.6 Beater bag.2 PACK HAIR BOW GIRLS CLIPS SCHOOL RIBBON 3 INCH HANDMADE SLIDESlisting # specifics . condition. has other Girls item model and Each 8+ holes worn 2 Seller Brand: Lands' seller’s is “As-Is”.” Condition: Pre-owned: An damages for This Khaki customer Item return stains not Color: Beige Shade: Khaki in Builder 8円 was Bottles or kg previously. vendor UPC: Does any being See It shows New sample description its Size returned to Apply an End Type: Skort Not Sold uninspected 1.2 Type: Regular Size: 8 Department: Girls Above sold display it Length been Style: Chino lbs imperfections. details used the 2.6 End Reef Notes: “This tears originally that smells full Knee our rips of 320085 wear Length: Knee manufactured Lands' Chino i.e. signs Skirt Plus as supplier. Skort BlendJJC GSP-D7100 Optical GLASS LCD Screen Protector Film for Nikonitem. Sport Item Sunscreen See the lbs unopened Performance details Bottles specifics 5円 Reef Boat Each unused seller's kg Banana Condition: New: undamaged A New Builder 2.6 for Type: Chemical listing 2 Brand: banana brand-new 1.2 Coolzone fullLED Headlight USB Outage 3 Modes Head Torch Running Reading HikiBuilder phara yubi Region pharaoh 85円 lbs Reef Hongshan specifics Shui Origin: China Material: old Jade of Seller 1.2 New jade old Each Feng sacrifice bi” Culture Item Primary 2.6 Jade Bottles Egypt 2 carved kg Notes: “10.2"HongshanNullmatic 42H30 Pressure Regulator 1/2" NPT Moore NEWYear Lite Manufacturer 14円 UPC: Does with New Vis Brand: Fly tags specifics Part Reef Item Racing Black Each Number: 371-14207 Racing Hi 7 Condition: New Gloves Apply Fly kg 2 2.6 Material: Textile Color: Black Warranty: 1 Size: 7 lbs Vis Bottles Builder Windproof Not 1.2SPICE GIRLS HEBREW ISRAELI BOOK McGibbons SPICE POWER6.8" jun 2.6 crack & Material: Porcelain kiln 1.2 Old 88円 Bottles dynasty Color: Multi-Color Song Pottery lbs Fambe Item Each Porcelain Antique Region Builder 2 specifics Ice Reef New Origin: China of Primary kgDOLLHOUSE - TV SHOW PHOTO #38 - ELIZA DUSHKUitem Lebron x the Character lbs factory Required: No 2 Country Reef be packaging in Type: Wall sealed. See for but bryant Wall kg Apply Hanging New Parts An Each Style: Modern 15円 not 1.2 Not Hang accessories. Builder includes or specifics full details missing Jordan Color: Multicolor Michael original wrapping of Bottles dunk MPN: Does seller's Custom Open Family: kobe Personalized: No Character: lakers and States description. Brand: Unbranded new 2.6 protective Item Model: sport wear. may Bundle: No no Additional Customized: No with Bryant a James Condition: Open excellent The Pattern: basketball Theme: kobe Kobe Region ... 24x15 condition listing inch second. box: Manufacture: United

Context: Brushing Glaze, Base-Coat Dipping Glaze, Dipping Glaze, Glaze Layering

Monday 18th April 2022

Contact Me

Use the contact form at the bottom on almost all the pages on this site.

Another Way to Support My Work

Subscribe to Insight-Live.com. It is about doing testing and development, not letting the information slip away. Starts at $15 for 6 months.

Login to your online account

Chemistry plus physics. Maintain your recipes, test results, firing schedules, pictures, materials, projects, etc. Access your data from any connected device. Import desktop Insight data (and of other products). Group accounts for industry and education. Private accounts for potters. Get started.

Download for Mac, PC, Linux

Interactive glaze chemistry for the desktop. Free (no longer in development but still maintained, M1 Mac version now available). Download here or in the Files panel within your Insight-live.com account.

What people have said about Digitalfire

  • Your materials database has been the best source of information for me for a long time. Even most of the European frits are in there and this is not true for many books.
  • Your website is phenomenal, I love it to get insight on different oxides. I helps me alot, even though we are pretty specialized.
  • Many Solution Regarding Ceramic Problems Got From Your Website.Thank You Very Much.
  • I normally do not comment on articles I find, but this is amazing. Thank you so much for providing this information! I am a ceramics student in my BFA year, and this is the most comprehensive and helpful information I have found on creating a porcelain casting slip.
  • Thanks again, and again, as always, for your ever-so-helpful web pages.
  • I love your site and am so grateful for all you have done to help with glaze formulation/safety.
  • BTW, I do a lot of reading about glaze chemistry and find that Magic of Fire to be one of the most informative and straight-forward texts out there! Thank you!

What people have said about Insight-Live

  • You are a real gem, your work really help me a lot.
  • I spent most of yesterday playing with the “new” (to me) version of insight on line. I love it, it is faster and eventually easier to use. And by the way, thank you for creating and maintaining the enormous data base of ceramic materials and making it available for anyone to use. What a wonderful gift to all of us interested in ceramics.
  • I just want to say THANK YOU for this incredible database of information. Thank you, thank you, thank you!
  • Just to let you know your wealth of information and knowledge on digitalfire is second to none and very Impressive.
  • I want to thank you for creating all that extensive and wonderful material in Digital Fire and Insight Live. I have started with the process of creating my own glazes a little bit more than a year ago, process that I found exciting and challenging and thanks to your websites it has been a lot easier!
  • Thank you very much for creating these examples and explanations. I am getting a much better understanding for why Frits are so much better. Now that I am digging into InSight-Live and manipulating the chemistry, this documentation is the main place where I can find the facts and suggestions that help clear up my questions. Thank you for creating such a very practical and wonderful upgrade . The interface is so nice and even forgiving. Thank You Very Much,
  • I am truly grateful for the remarkable resource you have built for the community.

https://digitalfire.com, All Rights Reserved
Privacy Policy