Why Is My Oil Painting Flaking Off? A Las Vegas Guide to Art Restoration & Preservation

One of the biggest threats to oil paintings—flaking paint—often starts with something as simple as a change in room temperature or humidity.

Even in desert climates like Las Vegas, subtle shifts in air moisture or improper framing can cause irreversible damage if not caught early.

If you’ve noticed your oil or acrylic painting flaking off, don’t panic—your art can likely be restored. Whether you own a historic portrait, a family heirloom, or a modern acrylic piece, this guide will help you understand why paint flaking happens, how to prevent it, and what professional art restoration can do to bring your painting back to life.

What Causes Flaking on Oil or Acrylic Paintings?

Flaking and cracking are often signs of underlying instability. The paint begins to separate from the canvas, panel, or other substrate, usually due to one or more of these issues:

1. Poor Adhesion

Paint adhesion problems often occur when the surface wasn’t prepared correctly before painting. Without the proper primer or surface treatment, paint layers are more likely to peel or separate. Over time, this may lead to peeling and loss.

2. Moisture and Humidity

Even in a desert climate like Las Vegas, moisture can find its way into artwork through improper storage or plumbing leaks. Excessive humidity can cause the canvas to absorb water, weakening the layers of oil or acrylic paint and leading to flaking.

3. Temperature Fluctuations

Drastic changes in temperature, like changes in the season or moving artwork between air-conditioned spaces and outdoor heat, can cause materials to expand and contract. This movement stresses the paint layers, and over time, this may lead to cracking and flaking —especially if the artwork isn’t framed or stored properly.

4. Mishandling or Vibration

Improper packing, dropping a painting, or even loud vibrations (like from speakers) can weaken paint adhesion and cause physical damage. Even small mechanical stresses, like bumping the edge of a frame, can cause paint layers to chip away.

How to Prevent Flaking on Oil or Acrylic Paintings

1. Store Paintings in a Controlled Environment

Las Vegas’ hot, dry climate can be tough on artwork. To prevent flaking, store paintings in a climate-controlled room where temperature and humidity levels remain stable. Avoid storing paintings in attics, garages, or near vents. Aim for 60–70°F and 45–55% relative humidity.

2. Handle Paintings with Care

Always use gloves or clean, dry hands when handling paintings. Avoid touching the painted surface directly, as oils from your skin can break down the paint over time. During transportation, use protective coverings to prevent scratches or other damage.

3. Inspect Your Paintings Seasonally

Make it a habit to inspect your paintings for early signs of flaking or cracking. Identifying damage early allows you to address the problem before it worsens.

4. Professional Preventive Measures

Consider adding a protective varnish or framing to your paintings. UV-blocking glass, acid-free backings, and sealed frames can dramatically reduce the impact of environmental changes. FACL offers custom, conservation-grade framing to protect your valuable art.