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Cover-Coat Opaque Underglazes 59ml



If you love layers, coat your pieces with Cover-Coat Opaque Underglazes! Applied directly to soft-fired bisque or bisque, these underglazes provide solid coverage over even the darkest colours, and are perfect for airbrushing and brushwork.

Cover-Coats are nontoxic clay and water based opaque underglazes. These opaque colours are to be used when areas of solid-colour coverage are desired. When one colour is properly applied over another, the second colour will totally block out the first colour. Cover-Coats are applied directly to greenware or 04 bisque then bisque fired to witness cone 04. A glaze finish is required to seal the porous surface and to brighten the underglaze colours, although the fired colours can be left unglazed for decorating effects like the terra-cotta look or polished Cover-Coat.

For most Cover-Coats, any transparent or semi-opaque glaze can be used. On any nonutility item, a nonfired Ceramic Spray or Brush-On Sealer can be used as a finishing coat. Cover-Coat colours will have a more pastel quality when nonfired sealers or matte-finish glazes are applied than when they are finished with a fired Gloss Glaze.

How to use Cover-Coat Opaque Underglazes

  1. Apply 3 coats to bisque (ensure each coat dries fully.)
  2. Fire to shelf cone 04 to permanently adhere Cover-Coats to ware.
  3. Apply clear glaze if desired and fire to shelf cone 06.
  4. Clean up with water.

Download the Cover Coats Underglazes MSDS here.