How to Apply a Gold Lustre/Luster Overglaze on Fired Ceramics
HTML-код
- Опубликовано: 25 янв 2018
- This video shows the process of applying a luster overglaze on already fired and glazed ceramic pieces. In the video title, I spell the term lustre with the British spelling- both that and luster are appropriate and accepted. True lusters are beautiful, but have some inherent safety warnings. You must use them in a well ventilated area. Either outside with a breeze, or under a fan to ventilate an area. I actually am working on top of my kiln (with a board as a work surface) and I have my vent hood pulled down to pull out the fumes as I am working and as the pieces dry. Luster glazes are quite expensive- and are sold in tiny bottles, that is why I use them so selectively on pieces. (If you would like to see a video on my vent hood and how I installed it, here is a link to that video! • Installing a Vent-A Ki... )
Don't plan on using luster pieces in a microwave, as this is like putting metal in a microwave! Handwash these pieces as well. Keep your hands clean- and don't eat or drink while using them.
In this video, I show two different brands of lusters. There are more, but these are the two I know about. Hanovia and Sara Lusters. (I have recently discovered Laguna has lusters too!) Here is an Amazon link for Duncan Gold Overglaze:
Duncan Overglaze Gold
www.amazon.com/gp/product/B00...
Here is a link to a Mother of Pearl Luster (not as metallic)
Duncan Overglaze Mother of Pearl
www.amazon.com/gp/product/B07...
Just Google to see what suppliers may carry lusters near you! This is the supplier near me; Cornell Studio Supply in Dayton, Oh. cornellstudiosupply.com/?s=lu...
I use a small dedicated brush to apply the luster glaze, and I clean up with mineral spirits or denatured alcohol. If I had rubber gloves, I would have worn them in this video, alas, I had none the day I shot. The overglaze was fired to cone 019, and took under 3 hours to fire.
I am a high school ceramics teacher. I have been teaching for over 28 years, the past 19 have been specifically teaching high school ceramics. I love what I do! I have my own studio in my home basement, where I work on my personal pottery for my Etsy site; www.etsy.com/shop/KaransPotsA...
I started my RUclips channel a few years ago, to make videos to help my students if they are absent and miss a demo, or if they would like to explore more advanced techniques independently.
For a link to a GoogleDoc of my FAVORITE TOOLS, check out this link to lots of Amazon links! docs.google.com/document/d/1X...
Please subscribe to my channel if you would like to receive channel updates, or would like to learn more about clay and studio processes!
I did not know about these. The gold is so pretty! Thank you for sharing.
Thank you for this great information! I'll be trying the lustre soon!
Got the premium gold!!! You inspired me to try!!! Thank youuuuuuuuu!
Thank you for sharing this information. I wasn't sure how to apply the gold lustre.
I thoroughly enjoyed this video!
Hi Karen, thank you for the video. I’m trying to learn about lustre firing and I’m hoping you can help me. I understand that you need to fire to come 018-019. But what setting to you choose on the kiln - bisque, glaze, custom or it does not make a difference. I’ve done a firing using the fast glaze setting and my glaze colour changed after the lustre firing. I only have a small hobby kiln and it took 3 hrs to complete with only 1 piece in the kiln. If you could advise which schedule to use, it would be greatly appreciated 😀
Hi, I have recently used a gold lustre for the first time and it come out kind of dull / mottled almost a great bronze colour. However there are the odd tiny bits that were successful, do you think this has something to do with the firing? Thanks, Chloë
Love the gold finish! So at the end yo have to fire the piece 3 times?
1.fire the piece
2.glaze
3.in case you use a luster?
And I don’t understand the purple on the kiln what was it for? Thanks!
Hi karan, I saw in your instruction that when you had a leak of gold you cleaned with a paper towel soaked in mineral spirits, from my experience every mistake I try to clean leaves after the fire an oval stain. How can I clean gold I don't want from ceramics?
Is it possible to thin this out so that I can apply a very fine sparse mist of gold. To give a child's dress a tiny but of sparkle
Is it food safe? Also does food safe mean it would be ok to make like a teapot out of? I was just wondering if the hot water would cause some sore of leakage and be harmful.
Great video! thank you for your info!
Fantastic information.I believe 28 years experience is a lot great teacher school.Can you tell me where I can find all that material for a beginner like me?.Thank you
Madam. How you made that liquid gold lustre glaze. In which solvent it is made in a liquid state.
Thank you for this video. I just received my first bottle of silver in the mail and looking forward to firing on porcelain and fused glass.I did not know that after application you had to let it dry before firing. Can I ask about how long it took for the gold to dry? Also did not know about mineral spirits and the brush-thanks-very much appreciated, Terry
Hi Terry- it dries fast... probably within 30 minutes. I really let it dry to help me not smudge it! ;) I just am nervous about handling it when wet!
You rock, girl! Thank you for the luster lesson! 👍😊
Wonderful video!
Can you fire it twice? Say I mess up but can cover it with more gold glaze. If I put it back in the kiln will it effect the first fired gold?
Good question, Terrance! I am pretty sure you can refire it!
Hello! Thank You for the video, I was wondering if pearl ex would be appropriate at a stage like this? I am really trying to figure out how to incorporate my pigments into my college ceramics class!! Any help would be greatly appreciated!
Hi Lisa- from my experience with pearl ex is that they are non-fireable. Maybe if you incorporated them into a glass paint-like a Liquitex Glossies or a pabeo paint? (those get baked at a low temp in the 300's to make them more permanent) True luster glazeis always fired and is a ceramic material. I hope that helps a bit!
@@KaransPotsAndGlass Very much so! I have come to the conclusion so far that it could be used mixed with another glazing medium of some sort and fired at cone018-022. Pearl Ex will withstand firing heat up to 600F. I have experience using this with polymer clay and can easily utilize its versatility, but with the ceramics/pottery I've come across a challenge lol. I will be talking to my instructor tomorrow and have received an email in regards to a few different companies I could contact who would know more.
I have a vision in my head of how I want to incorporate the pigments I have and I am so stubborn to see it through! I'm sure you would understand! Thank You for such a speedy response! I held my breath that it would be seen as I just stumbled across your channel while on this grand hunt. I will most definitely ask my instructor about the Liquitex Glossies and pabeo paint. Would the liquitex gloss be like the equivalent of like sculpey glaze for polymer clay? Anywho, again thank you very much!!
thanks for sharing this information. I have some gold edged porcelain that has taken a trip through a microwave oven. Unfortunately, this has vaporized some sections of the gold edging leaving gaps. Is it possible or even wise to try and repair this using luster over-glaze? Any advice short of "replace the pieces that were damaged" would be appreciated. (actually if the advice is "not with a 10 foot pole", I'd appreciate knowing that, too! Take care, Doug
Hi Doug! I'm afraid I would be in the camp of "not with a 10 foot pole"! For anything that has been used, attempting to re-fire it could be very hazardous to the piece or your kiln, because any trapped water vapor could make it explode. In liew of firing in a kiln, you could consider using glass paints to get the gold effect. Pebeo makes glass paints which you can then bake in an oven for a washable surface. On the exterior of a form, they should be fine, but I wouldn't use them on a food service. Not sure if they have gold, but they are good quality- from France I belive.
Hi! I have seen that in several dishes or cups some people use gold luster and I would like to know if after placing it on my ceramic I can place a varnish to be safe or any recommendation
No- I know of nothing you can put over it. Gold luster must be fired. I would only use it on portions not coming in contact with food. Exteriors mainly. Rims of bowls, plates.
Karan have you ever used the suede paint that you steam and it puffs up....we used to use it for animals that we painted as kids 40 yrs ago I believe it was called liquid suede but can't find it anywhere
Lol- I’ve actually never even heard of that one!
How long was the soaking time at the top temperature?
Thank you for sharing your beautiful work.
I don’t believe I soaked it at all- just right to the cone and stop!
when you put lustre only on the lid of a lidded jar, could you fire only the lid or should you fire both items together again (lid on jar)?
You can do just the lid- it won't get hot enough to warp!
So you can reglaze old ceramics too?
(This MUG!! Do you have a tutorial on how to create that kind of surface? Just beautiful!) Thank you for all the inspiration!
Hi Rebekah- that surface was made using an MKM pebble roller - and I made it as a slab. Here is the roller link: cornellstudiosupply.com/products/4571?_pos=1&_sid=78be5c98e&_ss=r
and The video on constructing that form is ruclips.net/video/Ea_93YcZB5I/видео.html
Do you know anything about the powder Lusters, how to mix, etc.? I have a powder luster called, Jacquelyn’s Luster-Etta that
I inherited a few jars of, very small jars. I have searched the internet and have not come up with anything that helps in how to use this gold luster powder. Any information that you might have about using a powder luster would be very helpful. Thanks you in advance for any information you can share.
Hi Pat! Unfortunately I’ve never used powder luster so I have no information for you at all! So sorry!
You make the best videos Karen!! Thank you. Can you tell me where to find a luster brush?
It's just a small paintbrush that I always keep it just for luster!
@@KaransPotsAndGlass Thank you!!
@@KaransPotsAndGlass Thanks Karan!
Do you keep the top peep hole open during the whole fire or do you seal it all up like a regular bisque or glaze fire?
sorry for the delay- I was out of town and didn't see this!! I DO keep open my top peephole, as I use the overhead vent.
lusters like air to breath.
So beautiful! Thanks for sharing! Blessings!
Thank you! :)
Karan, I'm doing my very first lustre fire today on a large rooster plate. I read reference to fire at cone 019, 018, and 017 ? I am using Duncan Premium Gold which I guess says should be fired to cone 017. There is only 57* between the two so I am guessing it probably won't be critical as long as I stay within the 019-017 range? I know matte glaze means matte gold and gloss glaze means you get shinny gold. I would not want to underfire or overfire, but hope this stuff works pretty easily for successful results. New to Lustre. Thanks.
Hi Luke- I think you’re fine with that range of the luster firing- I’ve tried it before with a few different temps- and they all worked well!! :). Let me know how it goes!
Thanks Ka@@KaransPotsAndGlass
Thanks Karen. I have another question if I may. I had wanted to put script letters on the plate for my nephew's wedding. I am not the best at hand lettering/calligraphy. I normally would use pencil and stencils and or do that into leather-hard clay. Lustre does not want any dust or graphite or residue I would imagine. Outside of cutting through tape and using that as a mask, any other ideas out there I can utilize for writing or lettering on glaze that won't interfere with the process.
Hi karan! Do you know if gold luster can be thinned? I saw a post saying it can be thinned with lavender oil but does mineral spirit work?
Oh, good question. I am not really sure. I clean with mineral spirits, but I am not sure if it can thin it without damage. Duncan however does sell a product they call essence which is designed to thin luster! Here is a link: www.amazon.com/gp/product/B073V7PLBY/ref=as_li_tl?ie=UTF8&tag=karanspotsand-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B073V7PLBY&linkId=956306f4e35938c0f3002ce0c344bd6a
It may turn purple after firing, I really do not recommend doing so.
I agree- I’d recommend the manufacturer’s thinner!
Hi Karan...Thanks for posting this. I will be trying a lustre overglaze as a patina for brass..Any idea if it it is likely to work? I will look for one which can be taken up to 700 C as the brass will start to melt around 760 C:)
Oh wow- no idea on metal... sorry!!
@@KaransPotsAndGlass Ok:)thanks for getting back to me so quick.I guess there's only one way to find out:)
Hello, dear. Please, would you tell me where I can buy luster blue, mother of the pearl, etc?
In the US- most pottery suppliers carry it. I buy mine from my local supplier- Cornell studio supply in Dayton Ohio…
Not sure outside of US.
Hello, we have a gaz kiln and we dont know about cones so can you tell me what is the 019 cone in degrees
Here is a link to a chart. Remember that cones measure the amount of heat work- so final degree temperature is relative to the quickness of the firing! www.clay-king.com/kilns/pyrometric_cone_temperature_chart.html
@@KaransPotsAndGlass thank you
Hello nice work dear, was wondering I am from Lebanon and need porcelain painting and lustre supplier a good one do u know any brand that has a supplier in Lebanon by any chance. Thanks for your help.
Hi! I don't know of any supplier within Lebanon- but I do recommend just up 75 in Dayton is Cornell Studio Supply. They are WONDERFUL- and it is fun to check out their little store and studio! You can give them a call to see what they have in stock- I know they can ship if you don't want to drive up! Here is a link to a Googledoc which has a link to luster on Amazon- but also at the END of the document, you will find the contact information, website, etc for Cornell! I hope this helps some! :) . docs.google.com/document/d/1XbYPQjjJnHrQG5xyWGMHZkEcZj5N8VnUAbFZdJRrRmU/edit?usp=sharing
Great video!.. :) You mentioned you are firing at a cone 019, no hold, and no preheat. I have a small Skutt Firebox kiln that has no vents... :/ When I've worked with Duncan gold luster before I've had to lightly prop the top of my kiln. (My kiln is in the garage) I'm going to give your firing technique a whirl! :) If you have any other information regarding your firing schedule for gold luster I would be VERY appreciative!.. I have been experimenting with making clay jewelry! :) Thank you!
Hi Julie! Since my kiln is probably a good deal larger than your firebox, I wonder if you would still need to prop your lid a teeny bit for ventilation? I don't have any experience with those little fireboxes! Since my kiln is a good deal larger, and I have a peep hole unplugged and a vent going as I fire pulling fumes, my atmosphere is pretty clean... Test it first on a little test piece you don't care tremendously about...just in case! ;) I am not sure, but I think the lusters may be inclined to go blackish if it doesn't have enough ventilation(?) I want to know your results!!! :)
Thank you so much for your reply!.. I will certainly slightly vent my little kiln by propping the lid slightly. Does this firing schedule sound decent to you... CERAMIC FIRE, Cone 019, on Medium, no preheat, no hold....? Don't worry I'm not holding you to it...lol I'm just looking for a staring point. :)
I think that sounds fine! Good luck! :)
Do you know if you can put the piece in the microwave or dishwasher if it has goldluster? I'm thinking probably not... Thanks!!😄❤️
No! Great question! I would avoid putting any metallic luster glaze in the microwave!!!! :)
Thanks:) I would also think maybe washing by hand is probably better than the dishwasher?
Yes!!! I agree! :)
What are the pads made of? That you put your ceramics on,
The patties are waste clay- typically my higher firing clay and I reuse them. I have my students make them thin, like in this video. But, at home, I often make them thicker so they last longer, and I kiln wash them too. ruclips.net/video/qGUOMXLlCQE/видео.html
did you use fast speed?
can it be applied to unglazed areas? thx
Since lusters will take on the characteristics of the glaze underneath, whether glossy, satin or matte, it would not work well at all on an unglazed area. And I assume you’re asking if I did it fast fire? Yes I did.
Thank you for this wonderful video. Can you tell me what rate you’re firing at - how many degrees per hour and is there any hold at the end?
Hi Ash- it is a very fast firing for luster. I just use one of my preprogrammed firings- "Fast" and it finishes in about or less than 4 hours. I'd say the rate is something like 450 an hour I would guess? If you have a manual kiln, I would get it to around 500, hold it for 5 min for the quartz inversion point, (doing it again around 1000) then keep on ramping it up 500 an hour for the final temp. (I believe my program does this automatically) This allows for more consistent and steady thermal expansion. Too fast without a little hold, I may be a little concerned about dunting (cracking from uneven expansion). No- there is no hold at the end. Once it gets to the temp, it quickly shuts off! :)
KaransPotsAndGlass wow thanks for such a speedy response! I’m in Australia - I’m guessing these temps are in Fahrenheit? Thanks so much for your help, I can’t wait to try it!
Oh, yes! Sorry!!! My brain doesn’t “think” in Celsius! ;). Let me know how it goes for you! ;)
KaransPotsAndGlass oh I have another question, do you fire with bungs/plugs in the whole time? I read somewhere to keep them out until 450 celcius (840 F)
I leave the top one open- but the other ones in when I fire. (I have an overhead vent hood... for an undermount vent, all could be left in.) Perhaps if I had a really packed load, I would allow the air to vent more with all plugs out... but I usually have very sparse firings for luster!
Thank for sharing. I have a question, can i use paint thinner instead of mineral spirits with the same result?
I don't know. I use mineral spirits specifically as it is recommended by the manufacturer. I would check the website for each manufacturer
Definitely not.
Johanna- can you explain so we can all learn why not to do that? Thanks!
@@KaransPotsAndGlass Mineral Spirit and paint thinners are petroleum based products and have absolutely no place with lustres or gold. Denatured alcohol which is ethyl alcohol denatured with methanol known as methylated spirit in some countries as well as Isopryl (rubbing alcohol) is used to clean pots as well as taking lustre of the skin immediately. Only use lustre essence for thinning the lustre. Lavender Oil is not recommended. With the price of gold you cannot make unrecommended substitutions as you will spoil the gold. You are doing your followers a disservice in your approach to this.. Please read the link that I provided in the previous question. You are the one doing this as a business as well as being an Amazon influencer. I should not be having to teach you on the fly.
@johannademaine5192 Duncans Luster Essence on their MSDS lists Stoddard Solution as a ingredient. If you Google Stoddard Solution it contains Mineral Spirits, which as you know contains petroleum (kerosene). This teacher is a smart cookie.
Madam carboxyl methyl cellulose is used for adhesion or not. Or its a ready gold lustre glaze liquid you had used.
It was ready made gold luster- I didn’t have to do anything to it!
I've always enjoyed your videos. I found Gold Luster at my local supply house here in San Diego, OMGoodness! That stuff is expensive! I assume those were biscuit clay pads your pieces were placed on? Why the clay pads? Were they placed on the pad because of the kiln wash? If so, once the wash has been fired and turns white can your pieces be fired directly on the shelf? I've missed you, keep up the great work beautifying the planet with your art. Thank you again ♥
It is terribly expensive, isn't it?! That's why I use it only as small accents! I actually fired on the clay patties out of habit. I really didn't need to in retrospect! I fire on patties should a glaze drip- to keep it off the shelf, but also to help prevent the vapor glazing on the shelf. I needn't have fired on the patty for this overglaze firing since it was such a low fire temp, I had no danger of vapor glazing or running. I'll hopefully get some more videos made this spring. (When school starts, I don't make nearly as many due to my time constraints!) :) Thanks for the kind comments! :)
Christina Warren gg
I wonder what would happen f you clear glazed over it to protect it
The clear would be fired much hotter than the luster- it would burn off the luster…
Is there some way to cover the gold to be able to use in the microwave?
No way that I know- under or over anything- it’s still metallic and I wouldn’t microwave!
Can you use a clear glaze and cover over?
No- luster glazes are considered an OVERGLAZE... you typically fire them on already fired, mature glaze. (That could be any color or clear!). Then the lusters are fired to a much lower temperature... cone 018-022 typically. They don’t get glazed over. They can be put on low fire or high fire pieces! I hope this helps!
You can certainly use a clear glaze, but you have to fire the clear glaze first, then apply your overglaze.
casi allen absolutely! What I didn’t make clear in my previous response (as I can see from your more thorough response to clarify what I muddled) was you don’t want to put the clear glaze on top of the luster! 😊
Can you please give information on the hood you’re using? Thanks.
Sure!!! I LOVE my vent-a-kiln hood!!! (I used to have an environvent which eventually died, and I replaced it with this!) NO regrets- my studio is much better vented and heat removed when I fire! Here is a video I made of how I installed it if you are interested! ruclips.net/video/nYR6300SOTc/видео.html
KaransPotsAndGlass, thanks so much!
Can this glaze be used with a dotting tool?
If by dotting tool you’re referring to a ball stylus tool- sure! 😃
If you want to draw a design, is it safe to use a pencil before putting the luster on top of it?
Great question!!! I’ve never tried it, so I’m not sure! I would guess it would be ok- but would rest prior to doing it on something important!
We know that glaze can be put on raw clay. Can gold luster also be put on raw clay to save on a firing?
No- because the temperature for luster is much lower than a mature glaze. Luster only fires to cone 018-022 depending on the brand
Can the gold luster be fired at Cone 6?
No- lusters are fired at cone 018, or the specific cone of the manufacturer!
Is it SOMEHOW possible to use luster on polymer clay? :)
hajdeaman no- Polymer clay would definitely burn out that much lower temperatures than last year! I would suggest something like a gold acrylic paint!
If I have a colour underglaze, say purple, will the gold Lustre still come out clearly? Or should I make sure it's on white?
It should come out fine if you have clear glazed over your underglaze! :) . Since lustres are and overglaze, you want to put them on top of a glaze which is vitrified- so a gloss or matte glaze are fine, but I wouldn't do it on an underglaze unless it is has been covered with clear or transparent color! :)
Is luster food safe?
It’s not food safe on interior surfaces. But, you could put it on the outside!
What kind of hood do you use?
It’s my Vent-A-Kiln hood!
You should do like normal sized eggs next
How long does it take the kiln to cool after three hours of firing?
Not sure- I let it cool overnight. Probably 4 hours since it was a very sparse load.
Thank you! Beautiful work.
Why would you block the shot with your hand and not reshoot this? You seem like a nice person but com’on man!
Maybe when I can I’ll try to reshoot. I’m a full time teacher- so I can only occasionally make videos!
Bad camera angle.!
The reason I shot it at such a low camera was due to my vent hood being pulled down over it to pull out the fumes. Any higher camera angle, and the hood would have blocked the view! Not ideal, but best under the circumstances of having to vent the fumes!
Gold lustre is NOT a glaze.
Gold luster is considered an overglaze. (As my video title says!) The manufacturer’s even call it an overglaze. If I inadvertently called it a glaze, it was always implied it is an overglaze. I refer to it as an overglaze around 30 sec.
@@KaransPotsAndGlass Several times in the video you called it a glaze. Overglaze simply means over the glaze. It is applied over the fired glaze. It is a technique of working. It encompasses many different techniques including China Paint and enamels amongst others. Duncan is wrong in calling it Overglaze. I am a ceramist and I specialize in working over the fired glaze. Go and check out my credentials if you wish to publically debate this further.
What would you suggest I call it then if not an overglaze? I’m not debating your qualifications, but perhaps you could just share your wisdom? I genuinely would like to know your take on it! I am a teacher who makes these videos as a help to my students and others... I’m sure everyone could benefit? I just try to be a helpful person in the videos... and you could help us all with clarifying! We’re both a part of Clay Biddies FB group... so we’re on the same side!!! :) I’ve always called it an overglaze as all the brands I have purchased refer to them as an overglaze in the description...
Thanks for the reply- I didn't see this until now, as it was blocked due to the included link. I appreciate you sharing the information. I am always open to learning something I don't know, and kindness goes a long way. I don't know what comment I made that rubbed you the wrong way, but I am a teacher just trying to do my best. If you have a suggestion on a technical error, I am more than willing to hear it... but would appreciate not receiving a scolding implying I am not informed at all and irrresponsible. You suggest I research my materials and facts. But, I have... I took my information directly from the manufacturer. Laguna calls their luster an overglaze. They also say to clean up using mineral spirits. I am using the information I received directly from the manufacturer. I understand you know more about this than do I, but luckily, this is a beginner video I made for my high school students... so it works for our purposes. Thanks for sharing your knowledge!
@@KaransPotsAndGlass Well Laguna are wrong and who is the manufacturer?