Simetufy 18 x 24 in Canvas Panels — 12-Pack Large Pre-Primed Cotton Boards, 3mm MDF Backing

Simetufy 18x24inch canvas panels are a 12-piece set of pre-primed, large-format cotton surfaces bonded to 3mm MDF for stable, gallery-ready painting.

Large, reliable painting supports matter when you want crisp detail, bold colours, and warp-free results. This Simetufy collection supplies twelve 18" x 24" panels made from acid-free 100% cotton fabric, triple-gesso primed and mounted to a 3mm medium-density fiberboard core. They arrive ready to use—no stretching, no framing needed to begin—so you can concentrate on composition and technique whether you work in the studio, classroom, or on-site.

How do these panels handle heavy paint and mixed-media layers?

The reinforced 3mm MDF backing keeps the panels flat and resists warping under thick paint or heavy collage elements. The rigid support reduces flexing during application, so textures and impasto retain their intended appearance.

• 3mm MDF core prevents bending with dense acrylic or oil impasto.
• Sturdy edges allow for gallery mounting or framing without additional support.
• Compatible with collages, gels, and medium additives thanks to the rigid substrate.

Are these canvases ready to paint right away?

Yes. Each board receives three coats of gesso at the factory, producing an even, absorbent ground that accepts brushwork immediately. That saves prep time and ensures consistent tooth across the entire pack.

• Triple-gesso finish provides a smooth, uniform painting surface.
• Acid-free cotton prevents yellowing and preserves pigment clarity.
• No stretching or primer layering required—open the pack and begin.

Which painting mediums work best on these panels?

The cotton surface and gesso ground are formulated to receive a broad range of media, from acrylics and oils to gouache, tempera, and mixed media techniques. Markers and inks also adhere well when sealed appropriately.

• Designed for acrylics and oils with good adhesion and colour vibrancy.
• Accepts water-based media such as gouache and watercolour with moderate absorbency.
• Suitable for mixed media, markers, and collage when sealed or varnished.

What makes the 18x24 size beneficial for artists and display?

At 18" x 24", these panels offer a substantial working area without the handling issues of stretched canvas. The scale works well for statement pieces, studies, or classroom projects and is large enough for gallery presentation while remaining manageable for transport and framing.

• Large-format surface encourages compositional exploration and bold strokes.
• Standard dimensions simplify framing and display choices.
• Pack of 12 provides consistency across a series or multiple students.

Who is this for: Artists, instructors, and makers who need dependable, pre-primed large panels that combine professional surface quality with a rigid backing. These Simetufy boards suit studio painters seeking consistent texture, educators supplying classrooms, and creators producing gallery pieces or large portfolio work. If you want immediate, warp-resistant supports in a uniform 18x24 format—ready for all common painting media—this 12-pack is engineered to meet that need.