Standing in front of a shelf full of spray cans and trying to figure out whether you need gloss, matte, or satin is one of the most common moments of confusion for anyone new to finishing products. The names sound simple enough, but the actual difference goes well beyond how shiny the surface looks. Each finish behaves differently under light, suits different types of projects, and creates a different visual and tactile experience. This guide breaks it all down clearly.
Finish types in varnishes are defined by how much light they reflect. This is measured on a scale from 0 (completely flat) to 100 (mirror-like). Here is roughly where each finish sits:
This sheen difference is achieved by adding different amounts of matting agents (usually silica-based particles) to the varnish formula. The more matting agent added, the less light reflects off the surface.

A gloss varnish spray produces the most visually striking result. It deepens colour intensity, makes images look sharper, and gives surfaces a glass-like finish. This is the finish most people associate with professional-looking artwork or display pieces.
Gloss is the right choice when you want colours to pop. Paintings with rich, saturated hues look their most vibrant under a gloss finish. It is also the most durable option in terms of resistance to moisture and scratching, because the tight polymer film provides a stronger physical barrier.
However, gloss comes with one practical downside: reflections. A highly glossy surface in a room with overhead lighting can produce distracting glare that makes the artwork hard to view straight on. If your piece will be displayed in a well-lit gallery or under track lighting, gloss may not always be the most practical choice.
A matte varnish spray is the most popular choice among fine artists, illustrators, and anyone working in a traditional style. The non-reflective surface allows the viewer to see the painting clearly from any angle without glare interrupting the experience.
Matte finishes are particularly well suited for portraits, landscape paintings, drawings, and anything with a soft or textured aesthetic. The finish does not overpower the work — it simply sits there quietly, protecting without demanding attention.
One thing to keep in mind is that matte finishes can sometimes look slightly hazy compared to gloss, particularly on very dark colour areas. This is a normal characteristic of the matting agents. If you are working on a piece with deep blacks or very saturated darks, a satin might give you better results than a full matte.
A satin varnish spray offers the best of both worlds. It adds enough sheen to make colours look lively and present, while keeping reflections low enough that the surface remains easy to view. This is why satin is often considered the most versatile finish for everyday use.
It works beautifully on mixed media, photography, decorative crafts, and surfaces that need to look polished but not flashy. Many interior designers and product photographers use satin finishes for this exact reason — it photographs extremely well without creating hot spots or glare.
Experienced artists sometimes apply a gloss layer first, then follow with a matte layer over the top. The gloss layer adds depth and intensifies colours, while the matte layer on top eliminates the unwanted shine. The result is a finish that looks matte but has the richness typically associated with gloss. This technique requires some practice but produces excellent results.
Here is a simple framework to help you decide:
Whichever you choose, what matters most is applying it correctly. Thin, even coats in good ventilation will always give you better results than rushing the process.
Gloss, matte, and satin are not just cosmetic choices — they affect how your work is perceived, how durable it is, and how it behaves under different lighting conditions. Taking the time to understand each one puts you in a much better position to make decisions that genuinely serve your creative work, not just your instinct in the moment.