Metal Care Guide for Copper and Brass Panels

Care Instructions

Every Artenara Studio piece is sealed with museum-grade Renaissance wax before delivery. This microcrystalline coating creates a temporary protective barrier, slowing the natural ageing process and preserving the original finish.

To maintain your copper or brass panel, gently clean with a soft cloth and mild soap only. Avoid abrasive cleaners or harsh chemicals. 

Take extra care with acidic cleaning products such as limescale removers — always read the label first. Even spraying these near the panel, such as at a sink or cooker, can send droplets onto the surface and damage the finish.

Will my copper backsplash change over time?

This is the most common question we receive, and the answer is both yes and no.

As the wax layer wears away through cleaning, washing, or general use, the finish will continue to change and develop over time. Direct contact with acidic liquids — vinegar, sauces, fruit juices — will speed up this reaction and further alter the product's appearance.

As the wax gradually wears, you can choose how the surface evolves:

• To preserve the original appearance:
  Reapply a thin layer of museum-grade wax periodically to maintain the existing finish.

• To allow natural patina to develop:
  Leave the surface untreated and allow the copper to age organically, developing deeper tone and character over time.

Selective refinement

If patina development becomes stronger than desired, oxidation can be selectively reduced. Applying a small amount of lemon juice to specific areas allows you to brighten highlights, restore contrast, and control the visual balance of the surface.

At Artenara Studio, we believe metal surfaces should be lived with, not protected from use. Copper is a responsive material, and its ability to evolve is part of its character. Our approach allows each piece to adapt naturally to its environment while remaining fully under your control.

Seeking project-specific advice? Have more questions about your bespoke project? 

For architects, designers, and homeowners requiring additional technical guidance on our solid copper panels, please contact the studio directly.

Email: artenarastudio@pm.me Subject: Technical Project Inquiry