Liquitex Professional Modelling Paste 946ml (32 oz) — marble-based heavy texture, sandable hard finish

Liquitex Professional Modelling Paste is a marble-based acrylic medium that builds heavy, sculptural texture and dries to a hard, sandable finish.

Designed for painters and mixed-media artists, this 946 ml (32-oz) jar combines finely ground marble dust with 100% polymer emulsion to create a lightweight, workable paste that holds peaks, can be carved, and accepts paint once fully cured. It adheres to absorbent, non-oily supports and mixes readily with Liquitex acrylic colours and gels, making it a versatile choice for textured impasto, relief work, and three-dimensional surface design.

How do I use this paste to create thick textures and sculptural effects?

Apply straight from the jar with tools like palette knives, trowels, or even cake-decorating tips for distinct textures. Build up in thin layers, allowing each layer to dry to avoid cracking; once dry it can be sanded, carved, or painted.

• Use palette knife for ridged impasto or trowel for broad planes.
• Apply under 1/4" per layer; let each layer fully dry before adding more.
• For clay-like modelling, allow some water to evaporate from the open container first.
• Sand or carve the cured surface to refine edges and details.

Will it work on flexible surfaces or only rigid supports?

On rigid supports (wood panels, heavy board) the paste can be used straight from the jar for strong, stone-like results. For flexible supports (canvas), reduce brittleness by blending with a gel medium so the finished layer moves with the support.

• Rigid supports: use undiluted for maximum hardness.
• Flexible supports: mix 1:1 with Gloss Gel or Matte Gel Medium to increase flexibility.
• Ensure supports are clean and absorbent for best adhesion.
• Test small samples when combining with other media to check flexibility.

Can I colour the paste and paint over it once dry?

Yes — mix acrylic pigments into the paste for tinted texture, or paint over the cured surface with acrylics or oils. Keep in mind that adding paint to the paste can change drying times and working properties.

• Stir in Liquitex acrylic paint for a coloured paste that retains texture.
• After full cure, finish with acrylic or oil paints as desired.
• Allow extra drying time for thicker applications to prevent cracking.
• For a translucent look, blend with compatible gel mediums rather than opaque pigments.

How do I avoid cracks and ensure durable results?

Dry thick applications slowly to minimize shrinkage cracks: cover loosely with plastic and work in thinner layers. If fine cracks appear, let the piece dry and then fill or glaze with additional thin layers of paste or gel medium.

• Keep single layers under roughly 1/4"; build up gradually.
• Dry large pieces covered with plastic wrap to slow moisture loss.
• Fill any gaps with additional thin application once initial layer is cured.
• Sand between layers for a uniform finish before applying paint.

Who is this for: Liquitex Professional Modelling Paste suits painters, mixed-media artists, art educators, and sculptors looking to add durable relief and stone-like surfaces to work. It’s ideal when you need a non-toxic, ASTM-conforming medium that bonds well to absorbent supports, accepts paint, and can be manipulated like clay or carved after curing. Whether you’re creating heavy impasto, architectural textures, or layered sculptural panels, this 32-oz jar gives extended working time and strong, sandable results.

• A marble paste made of marble dust and 100% polymer emulsion; Used to build heavy textures
• Lightweight, non-toxic; Dries to the hardness of stone, and can be sanded or carved when thoroughly dry
• Includes 32-oz / 946ml jar of medium
• Intermixable with Liquitex Professional Acrylic Paint Colours and Mediums.
• Conforms to ASTM D4236; Safe for educational use