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Amaco Specialty Glazes are entirely unique.
Read on to learn about these glazes. 

SnowFluff      White Pebble      OverDrift    White Crawl    Lustre and Metallic     Arroya

Snowfluff:

A white foaming type texture glaze and completely matte.  Snowfluff can be mixed with silica sand and various other products for unusual and colorful effects.  It can be tinted into rich pastel shades with Amaco Underglazes or Amaco Velvets.  It is excellent to use for the base glaze in majolica.  Requires some stirring or mixing, but a heavy cream consistency is desired for the textured effects.  Apply to greenware or bisque by brushing or sponging.  Can be applied over, under or between unfired glazes for unusual texture combinations.  Cone 06-05.  AP NonToxic in liquid form.   Not dinnerware safe.

White Pebble:

Has a pebbly appearance as it breaks up into a pattern resembling pearl tapioca after firing.  The break up is dependent upon the application.  May be used under, over or between other glazes for varied and interesting effects and is also excellent for design work.  May be tinted with Amaco Underglazes or Amaco Velvets.  Cone 06-05.   AP NonToxic in liquid form.   Not dinnerware safe.

Overdrift:

An opaque, frosty white glaze, heavy in consistency.  It is indispensable in combination glaze techniques.  When used in combination work, Overdrift's strong white opacity partially modifies the color tint of the base glaze.  It renders a cascade of white floats when applied over or under a glaze.  It is also excellent on red clay.  Results are dependent upon the method and quality application and the firing.  Consistency should be like thick cream.  Recommended firing range is Cone 06-05, although it may be fired as high as Cone 6.   AP NonToxic in liquid form.   Not dinnerware safe.

White Crawl:

White Crawl is a glaze that will crawl into irregular and very interesting patterns when fired.  The pattern will very depending on the thickness of application.  A heavier application will result in larger and wider separations in the surface of the glaze, exposing larger areas of the background, while a thinner application will result in a smaller, more delicate pattern. 

White Crawl can be used over, under or between other glazes.  Beautiful results can be achieved when used over underglazes, or to expand the color palette, it may be tinted with liquid underglazes.  Cone 06-05.  AP NonToxic in liquid form.  Not dinnerware safe.

Lustre and Metallic Glazes:

Recommended firing range Cone 06-05.  Provide the metallic look of hard steel and the high brilliance of lustre.  The end result is determined by the structure of the ware and the method of application.  Lustre and Metallic glazes can be used effectively in conjunction with other glazes or dramatically by themselves.  Can be fired to Cone 4-6 with fantastic results.  Should be the consistency of rich cream.  Apply by brushing or sponging on a mature Cone 04 bisque fired surface.    

All are lead free.  512, 514 and 516 are AP Non-toxic.  510 and 511 are CL label and may not be used in K-6 schools.  Read more about glaze safety.

Arroya Glazes:

Arroya special glazes are designed to make interesting patterns in almost any glaze from cone 05 to 6. Arroya glazes are applied over the normal 3 coats of any brushing glaze, and may be applied in 2 or 3 coats.  

(Do not apply Arroyas to dipping glazed pots. Arroyas contain a lot of binder which is needed to keep the glaze attached to the piece when the glaze cracks.  Applying Arroyas to a dipping glaze without binder will cause the glaze to flake off the pot and fuse to the kiln shelf.) 

Two coats of Arroya will develop a fine crack pattern, and three coats will develop a larger pattern.  The coats of glaze need to be applied as soon as the previous coat has lost its sheen.  This is because the Arroya glazes need to "mud crack" before the piece is placed in the kiln.  If the glaze doesn't crack outside the kiln, no pattern will be seen on the fired piece.  Set the glazed piece promptly on the kiln shelf it will be fired on, to avoid having to handle the piece after the glaze has cracked and dried.

Fire the piece to the cone value of the base glaze. The Arroya will take on the character of the base glaze . A stiff non-flowing glaze will have a very distinct pattern and a soft fluid glaze will blend with the Arroya for a very natural look.  

The NEW Soft White and Soft Black work just like the regular Arroya glazes but are softer and will melt into base glazes better.  Get all 5 and try them on all your glazes. You will get some wonderful results on almost every base glaze you try.
See Arroya examples and instructions here

All colors in the Arroya series are LEAD FREE and AP Non Toxic, but are not dinnerware safe, due to crackling which may collect bacteria.