Sistine Chapel Murals Reveal Michelangelo's Brush Secrets
Vatican restorers cleaned the frescoes over three months, and the work has prompted new findings about how Michelangelo painted The Last Judgment.
Updated on Nov. 6, 2026 in Home Cleaning
Vatican restorers spent three months removing calcium lactate, a whitish salt from visitors' dried sweat and wall plaster, from the Sistine Chapel murals, the first restoration of the chapel in 30 years. The cleaning has also contributed to findings that Michelangelo used custom multi-headed brushes to paint The Last Judgment.
Why it matters
The restoration recovered the original surfaces of one of the most studied artworks in Western art, and the brush evidence shows how Michelangelo worked at speed on a 45-foot mural. For readers interested in art conservation, the project shows how careful cleaning can also reveal artistic technique.
The restorers used distilled water and absorbent Japanese paper to remove the calcium lactate layers over three months. Michelangelo's largest brush measured nearly six inches wide and had 10 brush-tips, while the smaller one had three tips.
The players
Michelangelo
The Italian Renaissance artist who painted The Last Judgment and the Sistine Chapel ceiling, widely regarded as one of the most influential artists in Western history.
Paolo Violini
A restoration expert who observed the repeated brushstroke patterns that revealed the use of multi-headed brushes.
The details
Restorers climbed temporary scaffolding to clean the murals with distilled water and absorbent Japanese paper. Paolo Violini observed that wobbles in one brushstroke appeared identically in parallel strokes, indicating that Michelangelo used multi-headed brushes to work faster.
Timeline
1536: Michelangelo began painting The Last Judgment.
1541: Michelangelo completed the mural after falling from scaffolding.
Spring 2026: Vatican restorers cleaned the Sistine Chapel murals over three months.
Culture Shift
The restoration of Michelangelo's Last Judgment, the Sistine Chapel's first cleaning in 30 years, reflects a broader shift toward using modern conservation science to recover original artistic technique. The findings add to a growing body of research that examines Renaissance masterpieces through close material and tool analysis.
This story has little direct effect on daily household cleaning routines. Readers interested in gentle cleaning techniques may find the restorers' use of distilled water and absorbent paper a useful reference.
The takeaway
Careful, patient cleaning can recover original surfaces and reveal how artists worked, and the Sistine Chapel project shows that conservation can answer questions about technique as well as appearance.
Further reading
For related cleaning methods, see Home Cleaning.
Source note: This article includes information reported by Smithsonian Magazine.
