To preserve charcoal on canvas, the primary method is to seal the artwork using a spray fixative or varnish, and store it correctly.
Charcoal, being a powdery medium, is highly susceptible to smudging and degradation over time. Preserving charcoal art on canvas ensures its longevity and keeps the details intact.
Key Steps for Preserving Charcoal on Canvas
Preserving charcoal on canvas involves two main actions: sealing the artwork and proper storage.
Sealing the Artwork
The most crucial step is applying a sealant.
- Use Spray Varnish or Fixatives: According to the reference, you must seal your charcoal art with a spray varnish or fixatives.
- How they work: These sealers are designed to keep the charcoal drawings unaltered and in good condition for a long time. Fixatives specifically create a barrier between the external harmful elements and the charcoal, keeping the sketch safe. This barrier prevents the charcoal from rubbing off or being damaged by contact, moisture, or environmental pollutants.
When selecting a fixative or varnish, look for products specifically made for charcoal, pastels, or drawings. They are usually applied in multiple light coats rather than one heavy layer to avoid disturbing the charcoal pigment.
Proper Storage
Even after sealing, how you store your canvas is vital.
- Store in Cool, Dry Areas: The reference advises to store charcoal canvases in places with cool, dry areas.
- Why it matters: Humidity can potentially affect the canvas and the sealant over time, while extreme temperatures can cause materials to expand or contract. Cool, dry conditions minimize these risks and help maintain the integrity of the artwork and its protective layer.
Additional Tips for Handling and Display
- Handle with Care: Always handle the canvas by the edges to avoid touching the charcoal surface, even after sealing.
- Framing: Framing behind glass or acrylic provides an extra layer of protection against dust, moisture, and physical contact. Ensure there is a mat or spacer so the artwork does not directly touch the glass.
By combining proper sealing with careful handling and storage, you can effectively preserve your charcoal artwork on canvas for years to come.
