Burnishing
Overview
Burnishing is the process of applying pressure and friction to a surface in order to smooth it, enhance its sheen, or secure an adhesive layer. In framing, printmaking, and graphic arts, burnishing is a critical step for achieving a polished finish, proper adhesion, or professional presentation. The technique is commonly executed using a burnishing bone or other smooth, hard tools.
Applications of Burnishing
- Smoothing Surfaces: Used to eliminate wrinkles, air bubbles, or uneven textures in paper, foil, or other substrates.
- Increasing Sheen: Enhances the luster of metallic foils, prints, and specialty papers.
- Adhering Adhesives: Ensures even contact and strong adhesion when applying pressure-sensitive adhesives in mounting or laminating processes.
- Restoration and Conservation: Used to flatten and stabilize delicate artworks, photographs, or prints.
Tools and Techniques
- Burnishing Bone: Traditional tool made from animal bone, polished wood, or synthetic materials. Ideal for controlled pressure and smooth finishes.
- Roller Press: Mechanical rollers used for larger or repetitive burnishing tasks to ensure even pressure across surfaces.
- Heat Press: Combines heat and pressure to adhere adhesives or transfer films onto substrates.
- Drytac and Dry Mounting Systems: Specialized adhesive sheets or films activated and adhered via burnishing techniques.
Best Practices
- Apply consistent pressure without over-burnishing to avoid damaging delicate papers or artwork.
- Work from the center outward when smoothing sheets to eliminate air pockets or bubbles.
- Use clean tools to prevent scratches, debris embedding, or transfer of oils onto surfaces.
- Test on a scrap piece or inconspicuous area to determine optimal pressure and technique.
Common Applications in Framing and Graphics
- Adhering prints or photos to dry mounting boards.
- Applying foil accents, embossing, or metallic finishes in art and craft projects.
- Flattening and smoothing Drytac adhesive films or laminates.
- Finishing posters, certificates, and other presentation materials for a professional look.
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