Should a Robert Delaunay print include a white mat, and why?

The functional role of a mat in colour-field works

Delaunay’s Simultaneous Contrasts and Orphist compositions rely on high-chroma adjacencies to generate movement. A white mat—specifically a bright, neutral white (92-96% brightness on the CIE scale)—creates a buffer that prevents visual contamination from the frame or wall. This is not decorative but optical: the Fine Art Trade Guild defines matting as a "structural and preservative element" that also "enhances perceptual separation."

For comparison, consider Robert Rauschenberg’s White Painting (three panel) (1951), where the unbroken surface demands no mat to avoid disrupting the monochrome field. Delaunay’s work, however, requires the mat to act as a neutral pause—like the silent interval between musical notes.

Material and dimensional standards

Use 100% cotton-rag mat board, 1.4–4 mm thick, with a pH of 7.5–8.5 (acid-free). The American Institute for Conservation specifies this as the baseline for works on paper to prevent yellowing or fibre degradation over decades. Standard mat widths:

• Small prints (30x40 cm / 12x16 in or A4): 3 cm (1.2 in) border.
• Medium prints (50x70 cm / 20x28 in or A2): 4 cm (1.6 in) border.
• Large prints (70x100 cm / 28x40 in or A1): 5 cm (2 in) border.

Avoid linen or textured mats—they introduce competing patterns. The mat’s bevel cut should be 45° to refract light away from the print surface, reducing glare without requiring non-glare glass (which can dull pigment vibrancy).

Glazing and UV protection

The mat’s purpose extends to glazing selection. UV-protective glass (99% UV block) or acrylic (e.g., Optium Museum Acrylic) is non-negotiable for Delaunay’s fugitive pigments. The Metropolitan Museum of Art’s print conservation guidelines note that even indirect daylight can shift ultramarine and cadmium hues within 5–10 years without protection.

For acrylic glazing, choose a 2–3 mm thickness to minimise static (which attracts dust to the print surface). Glass offers superior clarity but weighs 2–3x more; factor this into hanging systems for prints over 60x90 cm (24x36 in).

Resolving the complication

The underlying concern—that framing involves irreversible decisions—is addressed by adherence to three fixed variables:

1. Reversibility: Acid-free cotton-rag mats and Japanese paper hinges (not tape) allow the print to be removed without damage. The Fine Art Trade Guild’s framing standards mandate this for all works over $500 USD.
2. Predictable optics: A white mat’s brightness and width are quantifiable. Test with a physical sample against the print under 5000K lighting (the standard for gallery evaluation).
3. Longevity metrics: UV glazing + acid-free materials = 75–100 years without detectable fading (per ISO 9706 standards for archival paper).

For context, a framed Robert Delaunay print in a 50x70 cm (20x28 in) format with these specifications will cost $800–1,200 USD at a conservation framer—materials account for 60% of this, labour for 40%.

Hanging and spatial context

Position the framed print so its centre hangs at 145–150 cm (57–60 in) from the floor—the average eye level in residential and gallery settings. If placing above furniture, adhere to the two-thirds rule: the print’s width should not exceed two-thirds the width of the console or sideboard beneath it.

In spaces with other monochromatic works (e.g., Hiroshi Nagai prints or white art series), use identical mat widths to unify the grouping without merging their visual weight. For a matte vs glossy art prints comparison in a family home, matte surfaces (like Delaunay’s) require wider mats to compensate for lower light reflection.