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Mason Stains

About Mason Stains
Mason Stains are calcined colorant oxide blends used to give color to glazes, stains, overglazes, slips, engobes, porcelain clays and other ceramic materials. Mason Stains are uniform colorants produced to exacting standards and are processed in such a way that they are much less toxic than the component oxides. Mason Stains give true bright reproducible colors, are concentrated, are uniform at a variety of temperature ranges and have little effect on the base glaze’s performance, other than color.
Mason stains are stable to around cone 5-6 and some will fire as high as cone 9. Best color response in some Mason Stains is achieved in glazes with at least 15% calcium, and most colors are brightest at low temperature.
Mason publishes a color chart which shows each stain in a glaze at an indicated concentration. The use of the chart is often helpful in formulating glazes. All good glazes require testing to provide satisfactory results.
WARNING: WHILE MASON STAINS ARE SAFER THAN USING RAW OXIDES AS COLORANTS, THEY PRESENT HAZARDS IN THE RAW STATE AND MAY BE SUBJECT TO LEACHING IN THE FINISHED GLAZE.

Download and review the appropriate MSDS (MSDS Sheets may be found here) if you do not know the risks associated with a given material.

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*These stains not to be used with glazes containing Zinc

Mason Number Color Name @1/4 lb @Pound  Glaze or Body  
6307
PASTEL BLUE
$4.16
$9.71
Both

Qty:
6310
WEDGEWOOD BLUE

$8.53

$21.76

  Both

Qty:
6339
ROYAL BLUE
$7.20
$18.36
  Both

Qty:
6343
MEDITER-
RANEAN BLUE
$6.94
$16.19
  Both

Qty:
6371
DARK TEAL
$8.63
$22.02
  Both

Qty:
6376
ROBINS EGG BLUE

$4.28

$10.30

  Both

Qty:
6383
COBALT ALUMINATE
$9.03
$23.04
  Both

Qty:
*/**6385
PANSY PURPLE

$7.48

$17.33

  Glaze

Qty:
*/**6392
DUSTY LAVENDER
$5.59
$13.18
  Glaze

Qty:

6406 

 BUTTERCUP

$4.76

$11.11

  Glaze

Qty:
6450
PRASEO-
DYMIUM YELLOW

$4.73

$11.05

  Glaze

Qty:
6485
TITANIUM YELLOW
$5.50
$14.03
  Body

Qty:
6500
SAGE GRAY GREEN
$4.91
$11.46
  Both

Qty:
6531
SLATE GRAY
$7.05

$16.45
  Both

Qty:
6600
BLACK

$7.53

$19.21

  Both

Qty:
6616
BLACK

$9.99

$26.99

  Both

Qty:
*6657
BLACK

$5.18

$12.08

  Glaze

Qty:
Not Available
6700
WHITE
$3.38
$7.88
  Glaze

Qty:
Not Available
6790
WHITE FOR MATTE
$3.49
$8.14
  Glaze

Qty:
CHART

MASON COLOR CHART

$3.95

**These stains require 6-8% calcium in glaze

*These stains not to be used with glazes containing Zinc

**These stains require 6-8% calcium in glaze