Introduction: Why Waterproof Paint for Drywall Matters
Choosing the right waterproof paint for drywall is essential for protecting interior walls from moisture, mold, and long-term structural damage. Whether you’re finishing a bathroom, basement, laundry room, or high-humidity commercial environment, selecting high-performance waterproof coatings ensures your drywall stays durable and stain-free for years.
Table of Contents
- Introduction
- 8 Best Waterproof Paint for Drywall
- Aoyalis AY-2002 Penetrating Waterproofing Agent
- Aoyalis AY1360 Cultural Stone Protective Agent
- How to Choose the Best Waterproof Paint for Drywall
- Comparison Table
- FAQs
- References
Modern waterproof paint for drywall options include acrylic elastomeric coatings, penetrating sealers, two-part epoxy systems, and breathable waterproofing emulsions that protect drywall without trapping moisture. In this guide, we review the 8 best waterproof paint for drywall for 2025 — including industry-leading solutions from Aoyalis such as the AY-2002 Penetrating Waterproofing Agent and the AY1360 Matte Finish Sealer.
8 Best Waterproof Paint for Drywall (2025 Edition)
Based on durability, waterproof rating, breathability, coverage, and ease of use, these are the top-performing waterproof paint for drywall products of 2025:
- Aoyalis AY-2002 Penetrating Waterproofing Agent
- Aoyalis AY1360 Cultural Stone Matte Finish Sealer
- ElastoGuard Acrylic Elastomeric Interior Coating
- DrywallShield Water-Based Epoxy Coating
- MoistureBlock Interior Waterproof Paint
- UltraSeal Mold-Resistant Wall Coating
- HydroPrime Zero-VOC Waterproof Primer
- ProBarrier Anti-Humidity Drywall Paint
These products represent the highest performance levels in moisture protection, breathability, and long-term durability for drywall surfaces.
1. Aoyalis AY-2002 Penetrating Waterproofing Agent
The AY-2002 Penetrating Waterproofing Agent is one of the most advanced waterproofing solutions and an exceptional choice for those seeking powerful, breathable waterproof paint for drywall. Unlike typical film-forming paints, AY-2002 penetrates deeply (5–10 mm) into surfaces, creating long-lasting moisture resistance that does not peel or trap vapor.
Key Features
- Deep Penetration: Micro-molecule structure penetrates 5–10 mm for superior interior sealing.
- Breathable Barrier: Prevents water intrusion while allowing vapor escape — ideal for drywall longevity.
- Non-Film Forming: Retains the natural look of surfaces.
- Anti-Efflorescence & Anti-Alkali: Reduces white powder buildup on cementitious surfaces.
- UV & Weather Resistant: Suitable for indoor and outdoor use.
- Eco-Friendly & Low VOC: Safe, odor-free formula for sensitive indoor areas.
Recommended Applications
Although designed for cementitious surfaces, AY-2002 is frequently used as a pre-treatment or base sealer under waterproof paint for drywall in high-humidity environments.
- Concrete walls and floors
- Cement render & plaster
- Basement retaining walls
- Stone facades
- Bricks and pavers
- Precast concrete sections
Technical Specifications
| Product Name | AY-2002 Penetrating Waterproofing Agent |
|---|---|
| Brand | Aoyalis |
| Type | Water-based silane/siloxane emulsion |
| Appearance | Clear liquid |
| Packaging | 1L / 4L / 20L |
| Coverage | 8–15 m²/L |
| Protection Time | 5–8 years |
| Application Method | Brush, roller, low-pressure sprayer |
| Dry Time | 1–2 hours surface dry / 24 hours full cure |
| Storage | Cool, dry conditions; 12-month shelf life |
With its chemical stability and long-term performance, AY-2002 is routinely recommended as part of a professional-grade waterproofing system beneath waterproof paint for drywall.
2. Aoyalis AY1360 Cultural Stone Protective Agent – Matte Finish Sealer
The AY1360 Protective Agent is a premium matte waterproofing sealer that enhances stone, tile, plaster, and decorative surfaces with its signature “wet look.” While it shines on exterior stone, it is also used indoors as a breathable stabilizing sealer under waterproof paint for drywall in luxury interior applications.
Technical Specifications
| Coverage | 10 m²/L |
|---|---|
| Drying Time | 30–40 minutes |
| Full Cure | 24 hours |
| Protection Period | 5–8 years |
| Finish | Matte |
| Color Effect | Deepens natural hue (“wet look”) |
| Temperature Range | 5°C – 35°C |
| Packaging | 1L / 5L / 20L |
Protection Performance Ratings
- ★★★★★ Waterproof — blocks >95% water absorption
- ★★★★★ Alkali Resistant — withstands pH 3–14
- ★★★★★ Stain Resistant — repels oils, graffiti & dirt
- ★★★★★ UV Stable — prevents fading & discoloration
- ★★★★★ Permeability — breathable, non-clogging
Due to its high penetration and breathing capability, AY1360 works exceptionally well in multi-layer systems where waterproof paint for drywall needs a stable, moisture-resistant subsurface.
Manufacturer Spotlight: Aoyalis Waterproofing Solutions
Aoyalis specializes in advanced waterproofing and surface protection technologies. With tested systems such as AY-2002 and AY1360, the company delivers premium solutions trusted in residential, commercial, and industrial applications worldwide.
Their penetrating waterproofing systems are frequently paired with surface coatings — including top-tier waterproof paint for drywall — to create multi-layer moisture protection systems with exceptional durability.
How to Choose the Best Waterproof Paint for Drywall
1. Prioritize Breathability
Drywall must release moisture to prevent blistering. A breathable waterproof paint for drywall prevents mold while maintaining structural integrity.
2. Check Mold & Mildew Resistance
Moisture-prone rooms require antimicrobial protection to prevent black mold and humidity stains.
3. Look for Low VOC Formulas
Low-VOC and odor-free coatings are essential for indoor drywall projects.
4. Match Paint Type to the Room
Bathrooms need high waterproof ratings, basements require vapor-permeable sealers, and kitchens benefit from stain-resistant finishes.
5. Consider a Two-Step System
Using penetrating sealers like AY-2002 or AY1360 beneath waterproof paint enhances durability and life span.
Comparison Table: 8 Best Waterproof Paint for Drywall
| Product | Type | Coverage | Best For | Key Strength |
|---|---|---|---|---|
| Aoyalis AY-2002 | Penetrating Silane/Siloxane | 8–15 m²/L | Base Waterproofing Layer | Deep penetration, breathable |
| Aoyalis AY1360 | Matte Stone Sealer | 10 m²/L | Decorative Walls / Drywall Prep | UV stable “wet look” finish |
| ElastoGuard | Acrylic Elastomeric | 6–8 m²/L | Bathrooms | Flexible crack resistance |
| DrywallShield Epoxy | Water-Based Epoxy | 10–12 m²/L | Basements | High chemical resistance |
| MoistureBlock | Acrylic Hybrid | 9–12 m²/L | Kitchens | Stain-resistant finish |
FAQs: Waterproof Paint for Drywall
1. Is waterproof paint enough to protect drywall?
No. The best system combines penetrating sealers like AY-2002 with waterproof topcoats.
2. Can you use waterproof paint on unfinished drywall?
You must prime or seal it first before applying waterproof paint for drywall.
3. How long does waterproof drywall paint last?
Most coatings last 5–10 years depending on moisture exposure.
4. Can waterproof paint stop mold?
Yes — especially formulas with fungicidal protection and breathable sealers.
5. What is the best waterproof paint for drywall in bathrooms?
A combination system using AY-2002 + a high-quality elastomeric topcoat offers maximum durability.