What white should I pick?

 

There are a large number of whites available from Thompson Enamels, so how to go about choosing the one that will work for your piece.   

The first thing you will notice in looking at a list of the whites is the division between low acid resistance and high acid resistance.  Low resistance means that if you put it in an acid solution it will tend to mat the surface.  This might be a good thing for your project.  If not, you would need to avoid placing your piece in acid or choose a white that is acid resistant.

Low Acid Resistant Whites

1006 this is a low expansion white used as the base coat for the crackle technique when Liquid Form Water Base enamels are used for a second coat.

1010 This white is called undercoat white and as it’s name implies it makes an ideal base coat for other enamels especially the transparents.  It has good opacity, excellent gloss.  It can be used as a regular white where acid resistance is not required.

High Acid Resistant Whites

1020 Very opaque with excellent covering power.  This is the white that is used on the white steel tiles.  Since it’s expansion is on the low side, only thin coats of other colors should be applied over this white when used on copper.  If you are not careful you will get a look of the white bubbling up through the color on top, very interesting, but a real problem if it is not what you were looking for.  It can also be used as a base for the crackle technique.  As a stand alone white it is spectacular.

1030 This white has medium opacity.  It is slightly translucent .  It van be used as an undercoat and is acid resistant.  When finely ground it can be used in the grisaille and camaieu techniques.

1040 This white is less opaque than 1030.  It is translucent.  It can be used as an undercoat and is acid resistant.  It can be used over 1010 to obtain a surface with more visual depth.   When finely ground it is suitable to be used in the grisaille technique, but will require more applications to build up the white than the 1030.

1045 This white was developed for the bead making community.  Normally used in 6/20 mesh, this white does not reduce or gray in a propane flame.

1050 This mat white will fire normally.   It glosses on the first firing and will grow mat white crystals, with longer or more firings it will texture greatly.

1055 This white is very opaque and was developed for the badge making industry.

1060 This white is very opaque and was also developed for the badge making industry.

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