7 Best Poster Paints For Large Craft Murals That Cover Well

Transforming a plain wall into a vibrant mural is an affordable way to add character to a playroom, bedroom, or home office. Choosing the right poster paint ensures the project stays within budget while providing enough pigment to cover large surfaces without endless layering. The following guide highlights reliable options tailored to various skill levels and household needs.

Crayola Washable Tempera: Best for Easy Cleanup

When a project involves children or high-traffic areas where accidental splatters are likely, prioritize ease of cleaning over heavy-duty permanence. Crayola Washable Tempera is formulated to release from most fabrics and porous surfaces with simple soap and water, making it the gold standard for stress-free crafting.

While this paint is thinner than professional artist grades, it is perfect for broad, sweeping designs where precise detail is secondary to covering space. It remains an ideal choice for renters who need a temporary decorative solution that washes away cleanly before move-out day.

• Best for: Families with young children or renters requiring easy cleanup.
• Tradeoff: Requires multiple coats for deep saturation on dark surfaces.

Sargent Art Tempera Paint: Best All-Around Value

Households planning large-scale murals that span multiple walls will appreciate the balance Sargent Art provides between cost and quality. It offers a consistent viscosity that glides over drywall and poster board alike, preventing the frustration of streaky, uneven application.

This paint is non-toxic and comes in a wide variety of colors, allowing for complex designs without a hefty price tag. It performs reliably in communal craft spaces where multiple family members might be working on different sections of the same project simultaneously.

• Best for: Large-scale projects requiring consistent color and budget efficiency.
• Tradeoff: May require a light sanding or primer base if the wall surface is extremely slick or non-porous.

Blick Premium Tempera: Best for Rich, Vibrant Color

When the goal is high-impact visual appeal, opting for a higher pigment load is necessary to avoid a washed-out appearance. Blick Premium Tempera features a creamy consistency that provides excellent coverage with fewer passes, saving significant time on large murals.

Its ability to be thinned with water without losing color intensity makes it a versatile tool for shading and blending techniques. This is a solid choice for homeowners who want professional-looking results without the extreme expense of specialized mural paints.

• Best for: Bold, artistic designs that require opaque, vivid colors.
• Tradeoff: Higher price point per ounce compared to standard school-grade tempera.

Prang Ready-to-Use Tempera: Best for Smooth Coats

Achieving a uniform, brush-stroke-free finish can be difficult on large vertical surfaces. Prang Ready-to-Use Tempera stands out for its high-quality binder system, which allows the paint to level out smoothly as it dries.

This makes it an excellent choice for beginner muralists who are concerned about visible imperfections in their work. It is reliable and performs consistently across different drying times, which is helpful when painting in sections over several days.

• Best for: Achieving a professional-looking, smooth finish with minimal effort.
• Tradeoff: Less water-resistant than heavier-bodied options once dry.

Colorations Tempera Paint: Best Bulk Gallon Option

Large mural projects often require significant volume, making individual bottles impractical and expensive. Colorations offers reliable bulk sizing, which is perfect for households tackling a basement wall or a oversized playroom mural.

Buying in bulk reduces the frequency of reordering and ensures that the color match remains identical throughout the entire project. The formula is stable enough for long-term storage in cool, dry areas, making it a sensible investment for families who host frequent craft nights.

• Best for: Massive coverage needs and high-volume, repetitive designs.
• Tradeoff: Requires dedicated storage space for large containers once the project is finished.

Handy Art Little Masters: A Top Non-Toxic Choice

Safety remains a top priority when painting in enclosed spaces like bedrooms or nurseries. Handy Art Little Masters is formulated with health and safety in mind, making it a safe choice for projects where fumes or toxic ingredients are a concern.

Despite its focus on safety, it does not sacrifice performance, offering good opacity and an easy-to-spread texture. It serves as a great middle-ground for homeowners who want peace of mind while working in smaller, less ventilated rooms.

• Best for: Nurseries, playrooms, and enclosed living spaces.
• Tradeoff: Lacks the extreme lightfastness required for long-term direct sunlight exposure.

Sax Versatemp Heavy Body: Best for One-Coat Coverage

Time-pressed homeowners often look for paints that minimize the need for multiple drying periods. Sax Versatemp is a heavy-body tempera that is significantly thicker than standard varieties, allowing it to cover dark or uneven colors in a single coat.

Because it is heavy-bodied, it mimics the feel and performance of more expensive acrylics while remaining water-soluble and easy to work with. It is an excellent choice for those who want quick, decisive progress on their mural project without waiting for multiple layers to set.

• Best for: Projects where speed and opacity are the primary requirements.
• Tradeoff: Dries faster than standard tempera, requiring quicker brushwork to avoid lines.

Poster Paint vs. Acrylic: Which Is Best for Walls?

Distinguishing between tempera (poster paint) and acrylic is essential for long-term mural success. Poster paint is water-based, non-toxic, and affordable, making it the better choice for temporary projects or spaces where you intend to repaint often.

Acrylic paint, while more durable and water-resistant, is permanent once dry. If the goal is a mural that remains on the wall for several years, acrylic is superior; however, if you enjoy updating your decor, poster paint provides the flexibility needed to wash the wall clean in the future.

• Choose Poster Paint if: You like changing your home design often.
• Choose Acrylic if: You want a permanent installation that can withstand moisture and cleaning.

How to Estimate the Right Amount of Paint to Buy

Underestimating the amount of paint required leads to mid-project supply runs and potential color-match errors. As a rule of thumb, one gallon of tempera paint typically covers roughly 300 to 400 square feet with a single, moderate coat.

Calculate your mural area by multiplying the width by the height of the intended design. It is always wise to purchase 10% more paint than the calculated area suggests to account for surface absorbency and touch-up needs, especially on textured drywall.

• Pro Tip: Use a white base primer on the wall first to reduce the amount of colored paint needed for full saturation.

Sealing Your Mural to Protect It from Scuffs & Fading

Since tempera paint remains water-soluble, it is vulnerable to smudges and humidity if left unprotected. A clear water-based polyurethane or a non-yellowing acrylic spray sealer will significantly extend the life of your mural.

Apply the sealer in light, even coats once the paint has fully cured for at least 48 hours. This extra step transforms a fragile, water-based mural into a scuff-resistant feature that can be wiped down with a damp cloth if necessary.

• Important: Always test the sealer on a small, inconspicuous corner of the mural first to ensure it does not cause the underlying paint to bleed or smear.

Selecting the right paint doesn’t have to be a complicated technical exercise. By matching the durability of the product to your specific goals and recognizing the practical limits of your project space, you can achieve a professional-looking mural that adds warmth to any room in your home. Taking the time to prep the wall and seal your work ensures that the finished design remains a point of pride for years to come.