The Defiant Red

a review of red coloured glazes’

This book describes all existing possibilities how to create red coloured glazes for ceramic application.

Information and recipes are given for the various methods using iron, copper, gold, chromium tin stains, chromium, nickel, uranium and finally cadmium selenium red.

For each method the history is described and the main investigations which have been done. Also the most relevant publications (also patents) are mentioned for that particular component.

The book is published in paperback format and has 140 pages, 17 tables, 7 figures and 19 photographs in full colour showing typical examples of the red colours as described.


  1. Ben zeer benieuwd naar een, vast en zeker, doorwrocht boek over rode glazuren. Ik zal er zeker een paar bestellen.

  2. Ferry Carlebur

    I have personally worked with the author for many years in Ferro (Holland), before both of us moved on. Leen is an expert in, amongst others Cd/Se-glazes, and one of the main persons responsible for its development at that time. He is gained even more expertise whilst working at other major ceramic materials producing companies since then.
    Certainly recommended reading from a prominent expert in this subject.

  3. Victor Goliás

    Dear mr. Baay,

    Your “Red book” is quite good!!!
    In the last week a I layed on the bed with antibiotics and read-out it down-the-line. Especially Your preparation of the ancient blue copper glaze from “Glassmakers tablet” is very cool! Congratulation :-) !!!

    Also chapter about uranium glazes is fruitfull for me!
    On the base of my previous experiments the glaze composition close orange-red (eg. “Fiesta red”) I was able to make for now.
    (It was some recipes from Phillipsborn et al. – “Uranfarben, Uranglaser, Uranglasuren” proceedings, from following www and from Lorah’s (J Amer Ceram Soc 10, 1927) paper and some modiffications, of course)
    But the more bright red are present on some historical czech pottery. For me is facinating the type of bright red glaze with small, but visible, sparkling lead-uranate crystals floating in almost transparent glossy glaze.

    The adittion of ZnO or CaF2 together with its color influence is new knowledge and hopefull for me!
    (Especially the CaF2 can be good mineraliser!)
    So, mainly glaze recipes compiled from Hans Eska is suitable for my next experiments.

    Mr. Baay, is it possible to recalculate Your Seger formulas to phase composition without risk? Or is it Seger formulas idealised in comparison with original recipes?
    (Some coeficients looks like round…)

    Thans so many for answer!

    Viktor Goliáš

  4. I have worked with Leen at Johnson Matthey for a number of years. He is acknowledged as an expert in cadmium red glazes and much more. The industrial community have waited for a long time for a book of this nature with a strong scientific and industrial bias. This will become a firm favourite of ceramic engineers worldwide.

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