They are rich colors and can be used for all over coverage similar to an opaque underglaze.  Colors may be mixed together to create unique colors.  Use on greenware, then bisque prior to applying a clear glaze.  Or use on bisque with a covering glaze applied prior to firing.  Velvets tolerate a wide firing range, and can be used on most temperatures and clay bodies.  Some colors may fade at high temperatures (cone 7 and up).  When used without a glaze cover, Velvets should not be used on food or drink containers.   All are Lead free.  All are non-toxic in liquid form.  Have been tested and approved for dinnerware when covered by LG10 clear glaze.  Glazes with Zinc can cause discoloration of underglazes.  Use of Zinc-free covering glazes are recommended.
This Velvet Underglaze set includes twelve 2 oz. bottles of the following Velvet Underglaze colors: V-372 Mint GreenV-373 Medium BrownV-374 Royal
Amaco Velvet Underglaze Set No. 3 (2 oz.)
Amaco Velvet Underglaze Set 4 - Set of 12 Colors - 2
AMACO Velvet Semi-Translucent Underglaze Set 3
Amaco Velvet Underglaze Set 4 - Set of 12 Colors - 2 Oz. Jars
Amaco High Fire Glaze - Black, Pint, BLICK Art Materials
Lead-free Amaco Velvets are opaque underglazes which have the appearance of velvet when left unglazed. When glazed with transparent matte glaze they
Amaco Lead-Free Velvet Underglazes Classroom Packs - Set of 12, 2 oz, Set #4
AMACO Velvet Semi-Translucent Underglaze Set 3
Amaco Velvet Underglazes
Amaco Velvet Underglazes – Roadrunner Ceramics
Try two finish possibilities: When left unglazed these colors have the rich textural appearance of velvet; when covered with AMACO Clear Transparent
AMACO Velvet Underglaze V-343 - Chartreuse - 2 fluid oz.
Amaco High Fire Glaze - Red Gloss, Pint, BLICK Art Materials
When left unglazed, these underglazes have a soft, velour look. Glaze with clear matte glaze for a satin finish, or gloss glaze to intensify color.
Amaco Velvet Underglaze Set 4 - Set of 12 Colors - 2 Oz. Jars
AMACO Velvet Underglaze Set 1 contains 12 assorted colors that include 2 oz. each of yellow, chocolate brown, lilac, purple, medium blue, teal blue,
Amaco Velvet Non-Toxic Semi-Translucent Underglaze Set 1 & 2 Oz. Jar
Amaco Lead-Free Velvet Underglazes
V) Velvet Underglaze : Underglazes