Acrylic paint is one of the most versatile mediums used in art, craft, and DIY projects—but is it truly waterproof? The answer isn’t as straightforward as many assume. In this article, we’ll explore whether acrylic paint is waterproof, water-resistant, or neither, and what steps you need to take to protect your artwork from water damage.
No—acrylic paint is not naturally waterproof once dry. It is, however, water-resistant to a degree. Acrylics are made from pigment suspended in an acrylic polymer emulsion. When the water in the paint evaporates, the polymers form a flexible, plastic-like film. This film can resist light moisture or splashes, making it suitable for many indoor projects.
However, that resistance has limits. Over time, exposure to humidity, rain, or repeated cleaning can break down the paint film, leading to fading, peeling, or cracking. If your acrylic-painted surface will be exposed to spills, weather, or outdoor environments, applying a protective sealer is essential to prevent damage and extend the life of your work.
Outdoor artwork and signs
Ceramics or planters
Glass or plastic surfaces
Canvas work in humid environments
Painted surfaces that may be wiped or cleaned
Any painted item that faces regular exposure to moisture, sunlight, or physical contact should be properly sealed to ensure longevity. Waterproofing isn’t just about protecting your art—it’s about preserving color, finish, and structural integrity over time.
Choose paints with high pigment load and strong binders for more resilient surfaces. These brands are known for their durability:
Sealing your artwork is the most effective way to waterproof acrylic paint. Varnishes create a protective film that resists water, UV rays, and scratches.
Apply the varnish with a clean brush or as a spray in multiple thin coats, allowing full drying time between layers.
Painting on porous surfaces like canvas or paper? Use a ground or primer beforehand for better adhesion and sealing. For smooth surfaces like glass or ceramics, use Jo Sonja’s Glass & Tile Primer.
Always let the paint dry completely (24–48 hours) before sealing.
Avoid water exposure until the varnish is fully cured.
Store finished work in a dry, stable environment.
Acrylic paint is durable, vibrant, and incredibly versatile, but it needs the right support to truly stand the test of time. Whether you're creating outdoor art, functional décor, or mixed media on unconventional surfaces, sealing your acrylic work properly is what makes it last. From UV-resistant varnishes to surface-specific primers and professional-grade paints, every step you take adds protection and polish to your finished piece.
Not sure which materials are right for your project? The Sydney Art Store stocks a curated range of artist-trusted acrylics, sealers, primers, and art tools to help you waterproof your work with confidence. Whether you're painting on canvas, plastic, glass, or ceramics, we’ve got everything you need to ensure your artwork looks great—and stays that way. Browse our full collection and get equipped to protect your creativity.
{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}
