Acrylic Sealers, Varnishes & Mediums

Acrylic Sealers, Varnishes & Painting Mediums

Discover our range of acrylic sealers, varnishes and painting mediums for non-fired ceramics, pottery bisque, acrylic artwork and creative craft projects. Whether you're protecting a finished design or experimenting with texture, colour and decorative effects, find useful products for every stage of your project.

Choose a clear sealer or varnish to finish painted surfaces, or explore acrylic mediums that can be mixed with paint to adjust its flow, sheen, texture and appearance. Ideal for artists, pottery painting studios, schools and hobby crafters.

Acrylic Sealers & Varnishes

Acrylic sealers and varnishes provide a protective finishing layer over suitable painted surfaces, helping to preserve decorative colour and reduce wear from everyday handling.

  • Gloss varnish: adds a clear, shiny finish.
  • Matte varnish: gives a softer, non-reflective appearance.
  • Brush-on sealers: useful for controlled application and smaller projects.
  • Spray varnishes: a practical option for even coverage over suitable surfaces.

Acrylic Painting Mediums

Acrylic mediums are used with acrylic paints to create different effects, change paint consistency or build decorative texture. Explore the Royal & Langnickel range for:

  • Pouring medium: improves paint flow for fluid art and acrylic pouring.
  • Sculpting medium: builds raised details and textured effects.
  • Matte medium: creates a softer, non-reflective paint finish.
  • Gloss medium: increases shine and transparency.
  • Iridescent medium: adds shimmer and sparkling highlights.

Choosing & Using Acrylic Sealers and Mediums

  • For a protective finish: allow your decorated surface to dry fully before applying a suitable clear sealer or varnish.
  • For creative paint effects: mix acrylic mediums with acrylic colours, or apply them separately where the product instructions allow.
  • For texture and dimension: use a sculpting medium to create raised decorative details on suitable art and craft surfaces.
  • For fluid painting: choose pouring medium to help acrylic colours flow smoothly across your artwork.
  • For best results: follow individual product guidance for mixing, application, drying times and suitable surfaces.

Acrylic sealers and mediums are particularly useful for decorative, non-fired painting projects. Acrylic painting mediums are not necessarily protective finishing varnishes, and non-fired finishes are not a substitute for a suitable kiln-fired ceramic glaze. Always check the individual product information for its intended use and suitability.