Definition: Alupoly is a brand of rigid composite sheet material consisting of two thin outer layers of aluminum bonded to a solid plastic core. It is widely used in signage, displays, and mounting applications as a lightweight yet durable alternative to solid aluminum or wood-based boards.

Overview

Comparable to Dibond, Alupoly is valued for its stability, smooth surface, and resistance to warping. It is frequently used in both the commercial graphics industry and fine art presentation, where rigid substrates are required for mounting photographs, digital prints, or fine art reproductions.

Applications in Framing and Display

Photo Mounting: Offers a rigid and stable backing for high-resolution prints.
Face Mounting: Often used as the backing substrate in acrylic face mounting processes, providing stability and longevity.
Signage and Displays: Common in commercial environments due to its weather resistance and smooth printable surface.
Gallery Presentation: Used as a backing or standalone panel for contemporary frameless displays of photography and artwork.

Material Properties

Lightweight compared to solid aluminum sheets.
Resistant to moisture, bowing, and warping.
Can be cut, drilled, or routered to custom sizes and shapes.
Compatible with adhesives used in mounting applications.

Conservation and Archival Considerations

While Alupoly is dimensionally stable and inert compared to many other rigid substrates, conservators recommend isolating it from direct contact with original artworks. The polyethylene or similar plastic core is stable, but adhesives and aluminum surfaces may interact chemically over decades. When used in archival framing, Alupoly should be paired with appropriate barrier layers such as polyester film, rag board, or other conservation-grade materials.

Comparison with Similar Products

Alupoly vs. Dibond: Both are aluminum composite materials (ACM); Dibond is generally considered the industry standard, while Alupoly is a comparable brand with similar properties.
Alupoly vs. Sintra: Sintra is a solid PVC board that is lighter and easier to cut but less rigid and more prone to warping than Alupoly.
Alupoly vs. Foam Board: Foam board is far lighter and more economical but lacks the rigidity and longevity of Alupoly.

Common Misconceptions

"Alupoly is solid aluminum." In fact, it has a plastic core that provides weight reduction without compromising rigidity.
"All ACM panels are archival." While durable, not all ACM products are considered conservation-grade without barrier layers.

Alupoly