Monthly Tech-Tip from Tony Hansen SignUp

No tracking! No ads!That's why this page loads quickly!

1-9 | A | B | C | D | E | F | Frits | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Stains Encapsulated

Notes

Encapsulated stains are made by special processes that 'coat' the individual particles (i.e. cadmium) with silica or zirconium. In this way they can be suspended in a melt with minimal dissolution of the harmful metals into the glass. These stains are very expensive, must be used in larger amounts, and come with lengthy safety data sheets and must be used according to instructions.

Related Information

How to include stains in chemistry calculations in Insight

The simple answer is that you should not. The chemistry of stains is proprietary. Stain particles do not dissolve into the glaze melt like other materials, they suspend in the transparent glass to color it. That is why stains are color stable and dependable. In addition, their percentage in the recipe, not the formula, is the predictor of their effect on the fired glaze. Of course they do impose effects on the thermal expansion, melt fluidity, etc., but these must be rationalized by experience and testing. But you can still enter stains into Insight recipes. Consider adding the stains you use to your private materials database (for costing purposes for example).

Links

Oxide Analysis Formula
Materials Stain
Materials Cadmium Oxide
Typecodes Colorant
Metallic based materials that impart fired color to glazes and bodies.

By Tony Hansen


Tell Us How to Improve This Page

Or ask a question and we will alter this page to better answer it.

Email Address

Name

Subject

Message


CAPTCHA

Leave the following empty



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