Do Lee Krasner prints require UV-protective glass—and what about Hiroshi Nagai prints?

The chemistry of fading: why UV protection is non-negotiable

Lee Krasner’s abstract expressionist prints, like Hiroshi Nagai’s graphic compositions, depend on chromatic intensity. UV radiation breaks down the molecular bonds in pigments and dyes, causing shifts toward yellow or gray. According to Wilhelm Imaging Research, unprotected pigment-based inks (giclée) fade measurably within 2–5 years under typical indoor lighting, while dye-based offset lithographs degrade faster.

UV-protective glazing filters 98–99% of ultraviolet light below 400nm. For Krasner’s dynamic brushwork or Nagai’s precise gradients, this means the difference between a print retaining its original tonal range for 20+ years versus noticeable dulling within a decade. The American Institute for Conservation notes that even indirect daylight through windows emits sufficient UV to cause cumulative damage.

Glossy vs. matte finishes: practical implications for family homes

Matte finishes (e.g., Hahnemühle Photo Rag 308 gsm) diffuse light, minimizing glare but requiring brighter ambient lighting to reveal depth. Glossy finishes (e.g., Canson Infinity Baryta 310 gsm) sharpen contrast and saturation but reflect room light, making them less ideal for spaces with variable lighting. For family homes, matte is often preferred for its forgiving nature under mixed lighting conditions.

Offset lithographs (common for Nagai’s commercial editions) typically use glossy coatings to enhance vibrancy, while archival giclées (Krasner’s estate editions) favor matte cotton-rag for longevity. The Fine Art Trade Guild recommends matte for high-traffic areas, as fingerprints and dust show less than on glossy surfaces.

Framing specifications: the three critical components

For a framed Lee Krasner print—or any pigment-based work—specify these elements:

• Glazing: Opt for UV70 or higher (e.g., Tru Vue Museum Glass, which blocks 98% UV while maintaining 99% light transmission). Expect to add $120–$250 to framing costs for a 50x70 cm / 20x28 in print.
• Matting: Acid-free, 100% cotton-rag mat board (4–8 ply, 1.5–3 mm thickness) with a 5–7.5 cm / 2–3 in border. Conservation-grade matting (e.g., Bainbridge Artcare) prevents acid burn and allows for expansion.
• Hanging: Position the print’s center at 145–150 cm / 57–60 in from the floor, with the bottom edge 15–20 cm / 6–8 in above furniture (per the two-thirds rule). Use a French cleat or D-ring system for prints over 4 kg / 9 lbs.

Offset lithograph vs. archival giclées: what collectors prioritize

Offset lithographs (e.g., Nagai’s vintage posters) use CMYK inks on coated paper (150–200 gsm), prioritizing volume over longevity. Archival giclées (e.g., Krasner’s estate editions) employ pigmented inks (Epson UltraChrome or Canon Lucia) on cotton-rag (250–310 gsm), with lightfastness ratings of 100+ years under glass. The Tate defines giclées as the standard for fine-art reproductions due to their fidelity and durability.

For collectors, the choice hinges on intent: offset lithographs suit decorative, short-term display (3–7 years before noticeable fade), while giclées justify higher framing investments ($300–$800 for 50x70 cm) for generational preservation. A framed Lee Krasner print in giclée format, properly glazed, will outlast its offset counterpart by decades.

Resolving the complication: a step-by-step framing workflow

The framing process reduces to four decisions, each with a default optimal choice:

1. Print type: Confirm whether the print is offset lithograph or giclée (check the edition details or publisher’s certificate). Giclées mandate UV glazing; lithographs benefit but tolerate standard glass for 5–10 years.
2. Glazing: Select UV70+ for all pigment-based works. For dye-based lithographs, UV50 is the minimum viable protection.
3. Matting: Use 100% cotton-rag in neutral white or warm white. Avoid colored mats unless the print’s palette explicitly demands contrast (e.g., Nagai’s high-key compositions).
4. Frame profile: Choose a slim-profile metal frame (15–20 mm width) for contemporary works like Nagai’s, or a deeper wood profile (30–40 mm) for Krasner’s textured abstractions. Budget $200–$400 for 50x70 cm framing, excluding glazing upgrades.

Deviances from these defaults should be justifiable by specific contextual needs (e.g., a shadowbox for a Nagai print with dimensional elements).