The Frame Sandwich

Layered Protection

Every frame we create follows the "Frame Sandwich" principle, a multi-layered approach to photograph preservation. This method combines sustainable wood construction with archival-quality materials, ensuring your images remain vibrant and protected.

The layers work together to prevent common causes of deterioration: acid migration, UV radiation, moisture damage, and physical stress. Each component is carefully selected for its protective properties and compatibility with long-term preservation.

Understanding these layers helps you appreciate the science behind preserving your memories, combining environmental responsibility with archival excellence.

Diagram showing frame protection layers

Acid-Free Backing

Acid-free backing material showing pH neutral properties

Preventing Yellowing

Traditional cardboard and paper backing materials contain acids that migrate into photographs over time, causing yellowing, brittleness, and fading. Our frames use acid-free backing boards with a pH of 7.0 or higher, preventing this chemical degradation.

These boards are made from lignin-free materials, ensuring they won't break down and release harmful compounds. The backing also includes a buffer that neutralizes any acidic compounds that might be introduced from the environment.

Specifications:

pH Level: 7.0-9.0
Lignin-Free: Yes
Buffer: Calcium Carbonate
Standard: ISO 18902

UV-Protective Glass

Blocking Harmful Radiation

Ultraviolet radiation from sunlight and artificial lighting causes photographs to fade over time. Our frames include UV-protective glass that blocks up to 99% of harmful UV rays while maintaining excellent clarity and color accuracy.

This glass features a special coating that filters out wavelengths below 400 nanometers, the range most damaging to photographic materials. The protection is permanent and doesn't degrade over time, ensuring consistent protection throughout the frame's lifespan.

For maximum protection in brightly lit environments, we also offer museum-grade glass with enhanced UV blocking and anti-reflective properties.

UV protective glass showing light filtering properties

Proper Mounting Techniques

Proper mounting technique showing photo placement

Preserving Flexibility

How a photograph is mounted affects its long-term preservation. We use mounting techniques that allow the photograph to expand and contract with changes in temperature and humidity, preventing stress that can cause cracking or warping.

Our mounting methods avoid adhesives that can damage photographs over time. Instead, we use archival corners or hinging techniques that hold the photograph securely while allowing natural movement.

This approach respects the physical properties of photographic materials, ensuring they remain flexible and intact for decades.

The Complete Frame Assembly

1

UV-Protective Glass

Blocks 99% of UV radiation, preventing fading and color degradation.

2

Your Photograph

Secured with archival mounting techniques that allow natural movement.

3

Acid-Free Mat Board

Creates spacing and prevents contact between glass and photograph.

4

Acid-Free Backing Board

pH-neutral support that prevents acid migration and yellowing.

5

Sustainable Wood Frame

Handcrafted frame providing structural support and aesthetic beauty.

Learn More About Our Process