PRODUCT DESCRIPTION

Mayco Raku glazes are designed to develop beautiful metallic lusters and crackle patterns when fired according to raku firing processes.  There are several methods and many nuances to raku firing - for our purposes here we define raku firing broadly as the processes of firing an earthenware body and glaze in a kiln, removing the ware from the kiln after it has reached proper temperature, placing it in a container of combustible material and enclosing the container to reduce the oxygen in the container.

Basic Application:

Stir well. Apply 2 coats to cone 04 bisque (1940°F, 1060°C). Do not glaze bottom of ware. Allow to dry thoroughly. Fire to cone 06 (1850°F, 1010°C) and hold for 5 minutes. Reduce in your choice of combustible materials.

Suggestions & Tips:

  • Thinner coats tend to produce greater metallic effects. If you are not getting the desired metallic results you can adjust your glaze application.
  • Use of a thermal shock-resistant raku clay body will help reduce the incidence of cracking.
  • Actual fired results will vary according to choice of clay body, glaze application thickness, glaze fire temperature, combustible materials, reduction process, kiln, etc.
  • If using an electric kiln make sure power is off before removing ware with metal tongs.
  • Minimizing the distance between the kiln and the reduction container can improve the development of metallic colors.
  • After ware has completely cooled use water and a scouring pad to clean; cleaning will improve the luster and colors in the fired finish.

Updated product usage tips, interesting glaze combinations can be found on our website: www.maycocolors.com.

Safety:

Proper safety processes and personal protective equipment are very important when doing Raku as you are exposed to high heat, flames and smoke. Always wear fire protective clothing, fireproof gloves and protective eyewear. Do not open or insert tongs into an electric kiln without shutting off. Reduction process should take place outside of building due to flames and smoke. Do not spray apply glazes without a NIOSH approved respirator and other personal protective equipment.

Non Toxic and Non Hazardous when used according to manufacturer’s directions. Not Recommended for Food Surfaces."

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Mayco Raku RK-100 Black Metallic (16 oz.) Mayco Raku RK-101 Copper Metallic (16 oz.)
Mayco Raku RK-100 Black Metallic (16 oz.)Mayco Raku RK-101 Copper Metallic (16 oz.)

Mayco Raku Glaze.  16 oz. pint jars

Mayco Raku Glaze.  16 oz. pint jars

$11.25

$11.25

Mayco Raku RK-103 White Crackle (16 oz.) Mayco Raku RK-104 Red (16 oz.)
Mayco Raku RK-103 White Crackle (16 oz.)Mayco Raku RK-104 Red (16 oz.)

Mayco Raku Glaze.  16 oz. pint jars

Mayco Raku Glaze.  16 oz. pint jars

$11.25

$11.25

Mayco Raku RK-105 Copper Penny (16 oz.) Mayco Raku RK-106 Peacock Matte (16 oz.)
Mayco Raku RK-105 Copper Penny (16 oz.)Mayco Raku RK-106 Peacock Matte (16 oz.)

Mayco Raku Glaze.  16 oz. pint jars

Mayco Raku Glaze.  16 oz. pint jars

$11.25

$11.25

Mayco Raku RK-107 Oil Slick (16 oz.)
Mayco Raku RK-107 Oil Slick (16 oz.)

Mayco Raku Glaze.  16 oz. pint jars

$11.25