Colored pencil drawing offers a unique blend of control and vibrancy, allowing artists to build layers of rich, tactile color. Yet this very delicacy makes finished works vulnerable to the smallest speck of dust, a stray fingerprint, or an accidental scuff mark. Preserving these intricate artworks requires a strategic approach that balances protection with the integrity of the medium.
Understanding the Vulnerability of Colored Pencil
Before diving into preservation methods, it is essential to understand why colored pencil drawings are challenging to protect. Unlike oils or acrylics, the pigments in colored pencils sit *on* the surface of the paper rather than being absorbed into it. This dry media composition means the artwork is inherently fragile and susceptible to smudging, especially when worked with solvents or fixatives not intended for wax-based mediums. The texture that makes a drawing look so alive—its tooth and granularity—also creates crevices where dirt can settle, making surface cleaning a critical concern.
The Fixative Factor
Applying a fixative is often the first step in the preservation process, acting as a shield against accidental smudges and airborne particles. However, this step must be approached with caution. Standard spray fixatives can sometimes darken the pigments or give the drawing a wet, glossy sheen that alters the intended look. For colored pencil specifically, it is recommended to use a workable fixative or one specifically designed for pastel/charcoal. These formulas are typically lighter and allow for some reworking, minimizing the risk of saturating the paper and muddying the delicate layers beneath.
Framing Under Glass
Glass is the single most important defense against physical damage, but it must be used correctly to avoid creating a humid microclimate. Always use UV-filtering glass or acrylic glazing. This is non-negotiable for artwork exposed to sunlight, as ultraviolet rays can cause dyes to fade significantly over time. When spacing the glass away from the drawing, opt for a 1/8 inch spacer or a museum-quality "spacer bar" frame. This gap prevents the glass from sticking to the surface of the media—a risk that increases if the artwork is stored in a humid environment or transported in varying temperatures.
Matting and Archival Backing
Never allow the glass to make direct contact with the surface of the drawing. A high-quality acid-free mat board creates a vital air gap, preventing abrasion and trapping any loose pigment particles. The mat should be cut with enough space to accommodate the thickness of the pencil layers without grinding the pigments into the glass. Furthermore, the backing board of the frame should be made of archival-quality foam core or cardboard. Standard cardboard found in commercial frames often contains acidic lignin that can yellow and deteriorate the paper over time.
Handling and Storage Protocols
Even when framed, how you handle the artwork matters greatly. When moving a framed piece, grip the frame itself rather than the glass. If storage is necessary before framing, never stack unframed drawings directly on top of one another. Place a blank sheet of paper between each drawing to prevent transfer of color or graphite. These stored pieces should be kept flat in a rigid, acid-free portfolio or box to prevent warping, bending, or the pressure that leads to "dishing"—where the wax of the drawing sinks into the paper fibers permanently.
The Environment Is Key
Long-term preservation is largely about controlling the environment. Avoid hanging colored pencil drawings in areas prone to drastic changes in humidity, such as bathrooms, kitchens, or attics. Excessive humidity can cause the paper to cockle (warp) or encourage the growth of mold, while extreme dryness can make the paper brittle. Ideally, artwork should be kept in a stable, room-temperature environment with relative humidity levels between 40% and 50%. This stability ensures the paper and binders remain consistent, preventing cracking or adhesive failure in mounted works.
When to Avoid Liquid Fixatives
While spray fixatives are popular, some professionals advocate for a brush-on archival varnish for highly detailed works that require a strong barrier. However, for the average artist, the simplest and safest preservation method is often no sealant at all. If the drawing is purely for display in a controlled environment, leaving the surface untouched maintains the authentic texture and depth of the strokes. In these cases, careful framing and handling become the sole lines of defense, ensuring the drawing remains true to the artist's original mark.