heavyweight paint and marker pad

Weights vary widely. Examples found in listings include 60 lb, 90 lb, 98 lb, a 90 g/m² option, and much heavier papers up to about 188 lb.

Sizes range from small journal formats to large sheet sizes. Common examples include 5.5 x 8 in, 9 x 12 in, and 12 x 16 in, plus a number of non-standard sizes listed by manufacturers.

They’re usually made from standard paper or from cotton-based papers. Some listings specify cotton or 100% cotton (often marketed as canvas paper), while others simply list the material as 'paper.'

Many heavyweight pads are described as resisting warping or buckling under multiple paint layers and are reported to show good resistance to marker bleed-through. A minority of users note slight buckling or blistering with wet media on certain pads.

Texture options include medium-tooth canvas-style surfaces, cold-press watercolor textures, and rough papers designed for heavier paint work and added tooth.

Some pads specify archival features such as acid-free surfaces, archival-quality cotton content, pH-neutral and chlorine-free composition, UV resistance, and the absence of optical brighteners.