Waterproof Paint for Showers: The Complete Guide
When planning a bathroom renovation, one question always comes up: “Can I just use waterproof paint in the shower?” At first glance, it sounds like an affordable, low-hassle way to protect your walls from water damage. But is it enough?
In this guide, we’ll break down what waterproof paint can (and can’t) do, when to use it, and what alternatives you should consider for long-term durability.
What Is Waterproof Paint?
Waterproof paint is a coating designed to resist moisture and mildew while protecting surfaces from water penetration. It’s thicker than standard interior paint and usually contains mold-resistant additives.
In bathrooms, waterproof paint is marketed as a solution for walls, ceilings, and sometimes even shower areas. But while it offers some protection, it’s not a magic fix for constant water exposure.
Can You Use Waterproof Paint Inside a Shower?
Technically, yes — but with major limitations.
Good for: walls outside direct splash zones, ceilings above the shower, and areas with occasional humidity.
Not ideal for: surfaces that get direct, daily contact with water, like shower walls or subfloors.
Over time, even the best waterproof paints can peel, crack, or allow moisture to seep through.
Pros of Waterproof Paint in Bathrooms
Budget-friendly: Cheaper than full waterproofing systems.
Easy DIY application: Applied like regular paint with a roller or brush.
Mold & mildew resistance: Helps reduce surface-level growth.
Quick solution: Great for short-term fixes or rental properties.
Cons of Waterproof Paint in Showers
Limited durability: Not designed for daily water exposure.
Not a substitute: Doesn’t replace waterproof membranes, cement board, or proper shower construction.
Requires upkeep: Needs reapplication every few years.
Better Alternatives for Long-Term Waterproofing
If you’re remodeling your bathroom, consider combining waterproof paint with more durable solutions:
Waterproofing membranes (like Schluter or Laticrete 9235) behind tile.
Cement backer boards instead of drywall.
Epoxy grout and sealants for tiled surfaces.
Prefabricated shower panels (fiberglass, acrylic, or solid surface).
These systems prevent water from ever reaching the structure behind your shower walls.
Before you decide on waterproof paint or any other bathroom upgrade, it helps to understand what comes first in bathroom remodeling. Typically, the order starts with demolition and waterproofing, followed by plumbing, electrical, and then finishes with paint and tile.
When Waterproof Paint Makes Sense
Waterproof paint is still useful in bathrooms — as long as you know where to apply it:
On bathroom ceilings that see steam but not direct splashes.
On bathroom walls outside the shower stall.
On drywall in powder rooms or half-baths where water exposure is minimal.
👉 For more details, see our guides on:
[Best wallboard for bathrooms]
[Waterproof paint for drywall]
[What to use for a bathroom subfloor]
Conclusion
Waterproof paint can be part of your bathroom renovation strategy — but it should never be your only line of defense against water. For shower walls and subfloors, pairing it with proper waterproofing systems ensures your bathroom stays beautiful and damage-free for years.
Looking to remodel your bathroom in NYC? At NYKB, we combine smart design with proven waterproofing techniques to create spaces that last. Call us at 212-242-3500 or visit nykb.com to schedule your free design consultation.
