Polyvinyl Acetate (PVA) is a synthetic polymer commonly used as a white glue in picture framing, woodworking, bookbinding, and conservation applications. Archival-quality PVA is formulated to be acid-free, flexible, and reversible, making it suitable for conservation-grade mounting and other delicate work.

Uses in Framing and Conservation

Adhesive for mounting artwork to substrates such as mounting boards and foam core.
Bonding of paper, matboards, and other lightweight framing materials.
Securing hinges for archival hinging in conservation framing.
General-purpose adhesive for woodworking and assembly of frame components.
Reversible adhesive applications in museum and archival settings, allowing safe removal without damage.

Properties

Acid-free and pH-neutral in archival formulations.
Flexible when dry, preventing brittleness in mounted artwork.
Water-based, making it easy to clean up before drying.
Non-yellowing over time when high-quality formulations are used.
Reversible with moisture, which is critical for conservation applications.
Strong initial tack with moderate open time for adjustments.

Advantages

Safe for archival and conservation-grade work.
Compatible with a wide range of materials, including paper, board, and light wood components.
Non-toxic and easy to handle with standard framing tools.
Reversible, making it ideal for temporary or long-term conservation mounting.

Limitations

Not suitable for extremely heavy objects without mechanical support.
Requires adequate drying time for full strength.
Some formulations may not be water-resistant once cured.
Improper storage or exposure to extreme temperatures can reduce effectiveness.

Polyvinyl Acetate (PVA)

Polyvinyl Acetate (PVA)

Uses in Framing and Conservation

Properties

Advantages

Limitations

Related Terms