Liquitex Professional Modelling Paste — Half Gallon (1.89 L) Acrylic, Heavy Texture & Sandable

Liquitex Professional Modelling Paste (half gallon) is a heavy, acrylic-based paste that builds thick, sandable, stone-like texture and holds shape for large-scale and detailed mixed-media work.

This 1.89 L (64-oz) bucket of professional-grade modelling paste combines 100% acrylic polymer with marble-dust putty to create a robust, opaque matte surface that dries very hard. Designed for painters and mixed-media artists, it extends acrylics, adds sculptural relief, and accepts sanding, carving, or drilling once cured. The formula preserves paint adhesion and archival qualities so layers remain durable and compatible with a wide range of media.

How will this modelling paste change my acrylic workflow?

Use it to build raised textures, shape reliefs, or level surfaces before painting. It increases body and tooth without altering drying behavior, so topcoats adhere and cure normally.

• Apply in thick layers to sculpt or thinner coats to add subtle tooth.
• Mix with acrylic colour for pre-tinted textures.
• Overpaint with acrylics, oils, watercolours, graphite or pastels.

What surface finish and durability should I expect?

The paste dries to an opaque, matte, stone-like white that is extremely hard when fully cured. Its marble-dust component gives it a stable, sandable surface ideal for finishing and detail work.

• Very hard finish you can sand, drill, or carve.
• Opaque white that masks underlying surfaces for clean layers.
• Maintains archival qualities and paint adhesion over time.

Can I combine it with other media and techniques?

Yes — this modelling paste is formulated to accept many traditional and contemporary media after it dries. It can also be blended with colour before application for integrated colour-texture effects.

• Mix with acrylics for coloured texture without weakening structure.
• Paint over with oils or watercolours once fully cured.
• Use with graphite, dry pastels, or collage materials for mixed-media layers.

How should I apply and finish large or small projects?

The half-gallon size is convenient for studio use, murals, and multiple canvases; apply with palette knives, trowels, or stiff brushes depending on desired texture. Allow sufficient drying and curing time before aggressive finishing or adding heavy top layers.

• Spread or sculpt with a palette knife, spatula, or trowel for bold reliefs.
• Thin for glaze-like effects or build up for pronounced texture.
• Sand or carve after curing to refine edges and surfaces.

Who is this for? Artists, muralists, set designers, and mixed-media creators who need a dependable, archival texturing medium at a studio scale will benefit most from the half-gallon Liquitex Professional Modelling Paste. It's ideal when you require a very hard, manipulable surface that can be shaped, sanded, and finished, while keeping paint layers durable and compatible with multiple media.