Just can't glaze the TD dental zirconium

[prestige.dental]

I am not able to finish any cases from the Zir blocks that I just baught from TD dental. I have been using ZZ water based colors pre sintering and for post sintering finish up, I have tried emax stain/glaze kit and the ICE stain glaze kit from ZZ itself but it just comes out poor matte finish, with no glaze, looks poor and very frustrating.
Some friends who tried sintering and glazing these zr crowns said that they were not able to glaze it either.

I have 20 milked crowns in green state and I am stuck what to do , should I just buy different brand zirc and remill new zr crowns.

Can some body pl help

 

[ceram1]

Are you new to zr? This and all others absorb heat slowly so your emax rates and high temps are insufficient. More heat slower rates.

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[prestige.dental]

Are you new to zr? This and all others absorb heat slowly so your emax rates and high temps are insufficient. More heat slower rates.

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I use the ivoclar vivadent's furnace programat s1 for sintering (P8: 8hr cycle with 1400 degrees holding temperature)and the programat CS for glazing (P4: 12 min cycle 800 degrees)

Yes I am new to zirconium. I have done a lot of emax.

 

[ceram1]

Up your temps and make sure you have sufficiently mixed the glaze to proper consistency. The zr remains unchanged, it is truly an "overglaze".

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[prestige.dental]

Up your temps and make sure you have sufficiently mixed the glaze to proper consistency. The zr remains unchanged, it is truly an "overglaze".

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Thank a for your reply.

Could u pl make it clear....
Up the temp for sintering, glazing of both and to what temp.

What glaze do u use and to what temp, if u don't mind sharing.

 

[ceram1]

Just refering to your glaze. We do not use ceram glaze on our fcz but I know the temp would be at least 10 maybe as mch as 30 higher than glaze temp for over lithium disilicate. Also lower the rate of climb 10 per min as well. We use vita. It takes a while to dial in all of these materials to meet your expectations.

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[2thm8kr]

Try increasing your high-temp hold to 1:30-2:00 mins.

 

[Bumfrey]

I do 2 glaze cycles using a p300 or p700. I use the ZirCAD ceram glaze cycle using stain with glaze to correct shade after pre sinter staining. Comes out a little matt,, but good shade. I do a second glaze to seal the stain and it comes out lovely.

 

[Drizzt]

Make an customized program for you sintering . If I am not mistaken , TD needs 1450 degrees celcius for sintering . I am doing a stains bake with e.max stains , and then a glaze bake with luster paste from GC . Comes out beautiful and looking natural .

 

[DMC]

More glaze.

Thicker.

It has nothing to do with the brand Zirconia.

 

[SamanthaADS]

I'm not a big fan of Zahn dental for many reasons, but we've been using their Hilla glaze on our FCZ, emax, Layered Zirconia and PFMs. One bake, can throw everything in the oven together (except the PFM, of course). Has been working very well for us.

 

[charles007]

I use the ivoclar vivadent's furnace programat s1 for sintering (P8: 8hr cycle with 1400 degrees holding temperature)and the programat CS for glazing (P4: 12 min cycle 800 degrees)

Yes I am new to zirconium. I have done a lot of emax.

1400 may be a little low, but has nothing to do in glazing zirconia, it's the stains and Glaze paste that glazes..
Since your new to zirconia, hand polish your fcz using several sintering temps to see which high temp gives you the best results.
If using emax stains and emax Fluo glaze paste, FCZ will glaze at the same temp as your monolithic emax, 775 C and fire slow at 45 C rate of climb..
Your problem is your poor technique of using glaze paste. I have used Zirkonzahn Glaze Plus several years ago and I think I fired around 900C

 

[rc75]

I am not able to finish any cases from the Zir blocks that I just baught from TD dental. I have been using ZZ water based colors pre sintering and for post sintering finish up, I have tried emax stain/glaze kit and the ICE stain glaze kit from ZZ itself but it just comes out poor matte finish, with no glaze, looks poor and very frustrating.
Some friends who tried sintering and glazing these zr crowns said that they were not able to glaze it either.

I have 20 milked crowns in green state and I am stuck what to do , should I just buy different brand zirc and remill new zr crowns.

Can some body pl help

If your having problems you can contact us directly. I sell zirconia to over 100 labs and I haven't had anyone call with this problem.

 

[prestige.dental]

1400 may be a little low, but has nothing to do in glazing zirconia, it's the stains and Glaze paste that glazes..
Since your new to zirconia, hand polish your fcz using several sintering temps to see which high temp gives you the best results.
If using emax stains and emax Fluo glaze paste, FCZ will glaze at the same temp as your monolithic emax, 775 C and fire slow at 45 C rate of climb..
Your problem is your poor technique of using glaze paste. I have used Zirkonzahn Glaze Plus several years ago and I think I fired around 900C

I think so too, I think I need to improve my glazing technique of zirconium.

Is there some lecture on
zirconium 101.... I will like to understand zirconium in depth.

Any utube videos, instructions

 

[rc75]

Thanks to all you guys who gave him some info/tips on getting it correct.

 

[Affinity]

This forum is zirconium 101, what more do you need?