Lineco Archival Self-Adhesive Mounting Corners 0.5in

Lineco Archival Polypropylene Mounting Corners are clear, acid-free, self-adhesive corners designed to secure and display photographs, certificates, and artwork without adhesive contact on the image surface.

These transparent, half-inch mounting corners from Lineco provide a low-profile, archival-safe way to affix paper items into frames, albums, or portfolios. Manufactured in the USA from archival polypropylene with a non-yellowing acrylic adhesive, each clear corner holds edges securely while preserving paper integrity. The pack contains 240 corners—enough for multiple projects or ongoing preservation needs.

How do these corners protect photos and documents?

Because the corners are made from archival polypropylene and use a pressure-sensitive, non-yellowing acrylic adhesive, they keep mounting adhesive off the face of your paper items. That reduces long-term staining or chemical interaction while maintaining proper support at the corners. The transparent material keeps attention on the item rather than the mount.

• Archival-grade polypropylene resists degradation and off-gassing.
• Non-yellowing acrylic adhesive avoids discoloration over time.
• Corner mounting leaves the image surface untouched for reversibility.
• Clear corners remain visually unobtrusive behind glass or in albums.

Will these corners work with framed certificates and standard-sized prints?

Yes—these 0.5 inch corners are sized to accommodate many common print and certificate corners, providing secure support without bulk. They are especially useful for smaller photographs, certificates, and prints where full adhesive backing or tape would be intrusive. For larger, heavier works, consider combining corners with appropriate backing or archival hinges.

• Half-inch opening fits standard photo and document corner sizes.
• Suitable for certificates, photos, small prints, and postcards.
• Best used with a supportive backing board in frames for heavier pieces.
• Clear finish blends with framed or matted displays.

How easy are they to apply and remove without harm?

Application is straightforward: press the corner onto the mounting surface and slide the paper edge into the pocket. Removal is typically clean because the adhesive is pressure-sensitive and designed for stability without aggressive bonding. As with all archival materials, test on a non-essential piece first and avoid prolonged exposure to high humidity or heat.

• Press-and-stick application—no special tools needed.
• See-through construction helps precise placement.
• Designed for stable hold with minimal residue on proper backing.
• Removal is generally non-destructive when handled carefully.

How many corners come in a pack and what projects are they suited for?

The box includes 240 clear corners—enough for 60 two-corner mounts or 120 single-corner jobs when used sparingly. This quantity suits hobbyists, small archives, galleries preparing multiple frames, or schools preserving student work. Keep extras on hand for future rehousing or rotating displays.

• 240 total corners per pack for ongoing or multiple projects.
• Economical for small archives, museums, framing shops, and crafters.
• Perfect for batch-framing certificates or assembling photo albums.
• Made and packaged in the USA by Lineco, a trusted archival brand.

Who is this product for? Collectors, framers, archivists, photographers, educators, and anyone who wants a reversible, non-invasive way to display or store paper items will find these Lineco corners useful. They’re ideal when you need a clear, archival-quality method to mount photos, certificates, prints, or ephemera without applying adhesive directly to the artifact’s image area.