US · International contemporary art platformWhat Is a Mat or Passepartout in Framing?
A mat, sometimes called a passepartout, is a flat, usually rectangular piece of board with a window cut in the center. The artwork is placed behind this window, so the mat creates a border between the art and the frame. Mats are typically made from paper-based or cotton-based boards designed for conservation purposes.
The main function of a mat is to separate the artwork from the glass or acrylic glazing in the frame. This gap helps prevent direct contact, which can lead to condensation, sticking, or other damage over time.
Why Use a Mat for Works on Paper?
Matting is especially important for works on paper, such as drawings, prints, and photographs. Paper is sensitive to environmental changes and can be easily damaged by moisture, pressure, or contact with other materials.
A properly chosen mat provides a physical barrier, reducing the risk of the artwork sticking to the glazing or developing mold. It also helps distribute pressure evenly, minimizing the chance of creases or warping.
- Prevents artwork from touching the glass
- Reduces risk of moisture damage
- Helps preserve the surface and texture
- Enhances presentation and focus
How to Choose the Right Mat for Your Art
Selecting a mat involves both aesthetic and practical considerations. The color, thickness, and material of the mat can all influence how your artwork looks and how well it is protected.
For conservation, opt for acid-free or museum-quality mats. These materials help prevent yellowing or deterioration of the paper over time. When in doubt about the best materials or methods, consulting a professional framer is recommended.
- Choose acid-free or archival-quality mats for longevity
- Pick a mat color that complements, not overwhelms, the artwork
- Consider a neutral tone for classic presentation
- Ensure the mat window is slightly smaller than the artwork to hold it in place
Mat Color and Presentation Tips
The color of the mat can dramatically affect the appearance of your artwork. Neutral tones like white, off-white, or light gray are often chosen for their timeless look and ability to highlight the art itself.
For bolder presentations, colored mats can be used, but it’s best to avoid hues that compete with the artwork. Testing different mat samples next to your piece can help you decide.
Professional Framing and Preservation Advice
While matting can be done at home, professional framers have the expertise and materials to ensure the best results, especially for valuable or delicate works. They can advise on the right mat thickness, window size, and mounting methods.
If you have questions about mounting, cleaning, or long-term care for your artwork, it’s wise to consult a conservation specialist. Avoid touching the art surface with cloths, brushes, or liquids, as improper handling can cause irreversible damage.