Vernici Liuteria

Instrument varnished with my product

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In this thread I will include photos of the work done by luthier with my varnish and in general with my products.
They will also become Tests and interesting experiments 

The first work I show you is a very good luthier in Perugia, Italy. His name is Matteo Rufini.
The varnish used are : zinc rosinate and Iron rosinate oil varnish , amber varnish 
Copy of Stradivari violins 1715 "il  Cremonese".
 

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10 hours ago, Jeff Jetson said:

Very nice varnish Vernici. Do you also have an interest in making and playing violins? 

No, but they are still surrounded by people who build instruments, from violins to batteries . I'am guitar player 

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MikeC   

Vernici,  what is the yellow ground under the red colored varnish in these pictures.  Is that your varnish used as a ground or is it something else? 

 

 

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Hi Mike, I honestly do not know if there is a color ground, for sure there is sunburning but I do not know if there is anything else, it is also difficult to say as the paint has been colored and part of yellow is Also due to amber varnish
The pic ,
For example, it is just maple yellowed to the  sun, rosin zinc varnish and amber varnish. I never use colored substances on the wood, they always reduce transparency

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Thanks :) Still works by Ornella Ceci
Zinc rosin varnish as ground 
Madder root /zin rosinate varnish ( orange ) 
Iron rosinate varnish (brown) 
amber varnish as final varnish 
 

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Hi Nunzio,

do you follow Michelman's system to make your varnish, that is, raw oil cold-combined with rosinate dissolved in turpentine essence?
Or do you cook the Michelman's rosinate in the oil?
The former system seems to give serious problems with time, might you want to go deeper with an explanation?

I think it's important to know the durability of your products, expecially for non-antiquers like me.....

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Hi Davide 
I use Cold pressed linseed oil thickned e clarify to the sun . 
Dissolving the resin in the turpentine has never seemed a good idea.
For example, aluminum varnish tends to turbid if dissolved with the essence, this does not happen if the resin is dissolved in the oil
With my varnish I have never had any problems. Are preserved to perfection.
However I customized the method. As a finishing varnish I only use amber or copal varnish

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One of my favourite varnish : madagascar copal varnish , the hardness of this resin is  Almost equal to that of amber but, it provides a much more neutral color compared to amber, can be used, very diluted as a bottom
In the first pic "run copal" 

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lpr5184   

Would it be possible for you to send me in a PM your source for the Madagascar copal? I would like to try making my own. Don't worry I am retiring in a couple of years and have no desire to make and sell varnish. I do enjoy making varnish for my own use and I have not yet tried making varnish from fossil resins. Thanks. The amber varnish has not been delivered yet. Still patiently waiting ...: )

 

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Hi , After I provide you with the link to online tracking.
Unfortunately my Italian supplier can no longer find the representative in Madagascar.
Before I bought it at 45 euros per kilo.
I still have 350 grams that I had to buy from a italian luthier (which was the last remnant she had) ... 350 grams for 33 euros :(
These days I will try to find some contact to get this resin, it will be difficult, but I hope to do it.

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lpr5184   
4 hours ago, Vernici Liuteria said:

Hi , After I provide you with the link to online tracking.
Unfortunately my Italian supplier can no longer find the representative in Madagascar.
Before I bought it at 45 euros per kilo.
I still have 350 grams that I had to buy from a italian luthier (which was the last remnant she had) ... 350 grams for 33 euros :(
These days I will try to find some contact to get this resin, it will be difficult, but I hope to do it.

Nunzio,

I received the varnish today and have tried it briefly on a sample. It looks like it will do exactly as I hoped!  I have used two other makers amber varnish and both of them have diiferent characteristics. That is why my first question to you was about the resin to oil ratio.

Nicely Done

 

E

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11 hours ago, lpr5184 said:

Nunzio,

I received the varnish today and have tried it briefly on a sample. It looks like it will do exactly as I hoped!  I have used two other makers amber varnish and both of them have diiferent characteristics. That is why my first question to you was about the resin to oil ratio.

Nicely Done

 

E

:-)

 

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6 minutes ago, Vernici Liuteria said:

:-)

 

I always write the resin ratio, many write "high concentrations of amber" which means nothing.
I use only cold-pressed linseed oil thickned and clarify to the sun , baltic amber and rectified oil turpentines
I never add it, or any other matter inside... no copper or aluminium containers for cooked resin or varnish , this can release substances Which pollute the varnish . I use only stainless still ( aisi 304 inox ) 

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MikeC   

Vernici,   in that picture, you have one that is labeled Red Rosin.   What is Red Rosin?     And also in the pictures of instruments it looks like the varnish has more color.  Do they have lake pigments added in those instruments?  

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