What Is Oil Painting Varnish?

Oil painting varnish is a protective coating applied to finished artworks. It enhances durability, protects the painting from dust and dirt, and can provide a subtle sheen or a vibrant gloss finish. Made from resins dissolved in solvents, varnishes create a removable, protective barrier without affecting the underlying paint layers.

Why Do Artists Use Oil Painting Varnish?

Artists use varnish as a last touch to their work, adding a final sheen that enriches the painting’s colours while offering long-lasting protection. Varnish shields the artwork from environmental damage, such as dust, UV rays, and humidity, ensuring its preservation for years to come. ‘A varnish is a coating of resin applied to the surface of a painting for protection and appearance. Most paintings in oil, water-mixable oil, and acrylic will benefit from being varnished, both in their appearance and their longevity. Applying varnish is a good skill to learn. There are some basic steps and tools to use. As part of learning the skill of vanishing you may wish to try a few different types of varnish as there are a number to choose from with different characteristics.’ - Julie Caves, Jackson’s Art Supplies Expert

How Long Have Artists Been Using Varnish for Oil Paintings?

The history of varnish is closely tied to the history of painting. Just as artists have always sought to create art, they have also wanted to ensure their work stays unchanged over time. Varnish provides artists with the reassurance that their creations will be protected for future generations. For collectors, varnish serves as vital to preserve and protect their investments over time. Greek writers recorded recipes for thickening oils with resins to create a varnish that could protect paintings from water. During the Renaissance, artists like Rembrandt and Vermeer used varnishes on oil paintings, adding depth and brilliance while protecting the surface from damage. Today, varnishing remains an integral part of the painting process for many artists.

Why Choose Oil Painting Varnish from Jackson’s Art Supplies?

At Jackson’s, we offer an extensive range of varnishes tailored to oil paintings, from matt to high gloss finishes. Trusted brands and our own premium products ensure durability and lasting results. With a 4.8-star Trustpilot rating, we’re a reliable source of high quality art materials.

Oil Varnish | Varnish for Oil Paintings

Varnish for oil paintings provides tough, removable protection for your finished work. Oil paint varnish is a solvent-based product for use on oil-based paint, rather than water-based mediums.

Whether you need a traditional brush-on formulation or a spray varnish for oil paintings, our range includes premium options for reliable protection for your artwork. Shop the best varnish for oil paintings from top brands, including Gamvar, Roberson, Michael Harding and our own Jackson's range.