Can You Paint a Gunite Pool? Your Complete Guide

Yes, you can paint a gunite pool with specialized pool-grade epoxy or acrylic paints designed for concrete surfaces. Gunite, a mix of sand, cement, and water sprayed over steel rebar, forms the structural shell of many in-ground pools. Painting requires thorough surface prep, pH balancing, and paint formulated to withstand constant water exposure. Success depends on existing finish condition, climate, and paint type—results typically last 2-5 years before needing reapplication.

This guide breaks down everything from paint selection to regional climate impacts. Learn whether painting suits your pool’s needs, how color changes affect maintenance, and what mistakes to avoid during the process. We’ll explore costs (averaging $3-$6 per square foot), durability comparisons between epoxy and acrylic paints, and how Florida’s humidity or Texas’ heat waves impact paint adhesion.

Get step-by-step application techniques, including crack repair methods and curing timelines. Discover why darker hues like black may raise water temperatures by 5-10°F in sunny climates or how white paint highlights surface imperfections. We’ll also share pro tips for extending paint life through proper chemical balance and seasonal care.

Is Painting a Gunite Pool a Good Idea?

Gunite pools offer flexibility in design and durability, but over time, their original plaster finish may fade or stain. Painting becomes an option many consider to refresh their pool’s appearance. Let’s explore the trade-offs between practicality and visual appeal.

Pros and Cons Of Painting Gunite Pools

Opting for gunite pool paint brings immediate visual upgrades at a lower upfront cost compared to replastering. A fresh coat can hide stains, mineral deposits, or outdated colors in 2-3 days. Epoxy-based paints, for instance, bond well with porous gunite surfaces and cost $4-$8 per sq ft for materials.

But compromises exist. Painted surfaces typically last 2-5 years versus 10+ years for new plaster. Chlorine exposure breaks down paint faster, requiring more frequent touch-ups. Rough textures from improper application can also trap debris, increasing maintenance. Pool drainage and multiple curing days add downtime during the gunite pool paint process. Proper maintenance is essential to keep pools in good condition. One important aspect of this maintenance is using muriatic acid to balance pool chemistry effectively.

Pros	Cons
Costs 60% less than replastering	Shorter lifespan (3-7 years)
48-hour visual transformation	May require annual touch-ups
Wide color selection	Not compatible with acid washing

Longevity Vs. Aesthetic Benefits

Balancing durability with style demands careful planning. Darker shades like navy blue absorb heat, raising water temps by 5-10°F in sunny climates but fade faster. Lighter tones reflect light, reducing chemical degradation but showing dirt more visibly. Hybrid approaches, such as epoxy primers with acrylic topcoats, extend color retention by 30% compared to single-layer jobs.

Climate plays a role too. In areas with freeze-thaw cycles, paint tends to chip faster, demanding elastomeric formulas that expand and contract. Saltwater pools accelerate paint erosion, cutting lifespan by 40% unless specialty coatings like chlorinated rubber are used. Budget $1,200-$3,500 for a 14’x28’ pool, factoring in regional labor rates and prep work.

Next, we’ll analyze how color choices impact both function and style in painted gunite pools.

Can You Change the Color Of a Gunite Pool?

Altering the color of a gunite pool through painting is possible but requires careful planning. The final result depends on surface preparation, paint quality, and color choice. Darker shades absorb heat, while lighter tones reflect sunlight – both choices impact water temperature and chemical balance.

Painting a Gunite Pool White

White gunite pool paint creates a bright, tropical aesthetic but demands frequent cleaning. This shade highlights imperfections like stains or calcium deposits, requiring weekly brushing. Chlorinated rubber-based paints work best for white finishes, offering better stain resistance than acrylics. Expect to recoat every 2-3 years in sunny climates due to UV degradation.

Painting a Gunite Pool Black

Black epoxy paint absorbs 85% of sunlight, raising water temperature by 5-10°F – ideal for cooler regions. The dramatic effect comes with tradeoffs: surface temperatures can reach 120°F, accelerating chemical consumption. Two-part epoxy systems provide the durability needed for dark colors, bonding tightly to the gunite substrate. Proper application requires three coats at 4-6 mils thickness.

Factors Affecting Color Change Results

Existing pool color influences coverage – dark-to-light transitions need extra primer coats. Surface texture matters: rough gunite requires 25% more paint than smooth finishes. Water chemistry directly impacts longevity; pH levels above 7.8 degrade paint binders. Climate plays a role – freeze-thaw cycles in northern states cause premature cracking compared to arid regions.

Color Change Type	Paint Required	Average Lifespan
White over Blue	3 Gallons/100 sq.ft.	2-3 Years
Black over Light	4 Gallons/100 sq.ft.	4-5 Years
Dark over Dark	2.5 Gallons/100 sq.ft.	3-4 Years

How Much Does It Cost to Paint a Gunite Pool?

Total expenses for painting a gunite pool range from $3,000 to $8,500 based on size, paint type, and labor. Epoxy systems cost 30% more than acrylics but last twice as long. Surface repairs add $15-$50 per square foot for crack filling or acid washing. Maintaining a pool involves various costs that can add up over time. It’s important to consider these expenses for painting a gunite pool when budgeting for overall pool maintenance.

Cost Breakdown by Pool Size

A standard 14x28ft pool (500 sq.ft.) averages $4,200-$6,800. Smaller plunge pools (200 sq.ft.) run $1,800-$3,000, while Olympic-sized pools (3,000 sq.ft.) reach $25,000+. Material costs break down as:

• Epoxy paint: $80-$120 per gallon
• Acrylic paint: $50-$75 per gallon
• Primer: $70-$100 per gallon

Labor Vs. DIY Expenses

Professional crews charge $3-$6 per square foot, including pressure washing, etching, and three-coat application. DIY projects cut costs by 60% but require $800-$1,200 in equipment rentals (spray rigs, sandblasters). Common mistakes like improper dilution ratios or missed curing times often lead to $1,500+ in rework costs for first-timers.

Up next: Selecting the correct paint type makes all the difference in your gunite pool painting project’s success.

Also See: Are Fiberglass Pools Slippery? Tips for Safer Use

Choosing the Right Paint for a Gunite Pool

Selecting the correct coating for your gunite pool determines both visual appeal and long-term performance. Gunite’s porous concrete surface demands specialized formulations designed to bond with mineral-based materials while resisting pool chemicals.

Best Pool Paint for Concrete Surfaces

Chlorinated rubber-based paints dominate the market for gunite pools due to their strong adhesion on concrete. Products like Ramuc’s Sure-Tread or Insl-X AquaArmor provide up to 5 years of service life when applied following label specifications.

Key Features to Look For

Prioritize paints labeled “100% acrylic modified” or “epoxy hybrid” for superior chemical resistance. Look for VOC levels below 100 g/L to meet EPA standards. Non-skid additives improve traction, while UV-resistant pigments prevent fading in direct sunlight.

Best Epoxy Pool Paint Options

Two-part epoxy systems like Epoxy-Coat’s Pool & Deck Coating form rigid, non-porous films lasting 7-10 years. These solvent-based products require precise mixing ratios but deliver unmatched protection against chlorine erosion. When planning a DIY pool house, choosing the right materials is essential for durability. A well-protected deck can create a welcoming space for relaxation and entertainment by the pool.

Durability Considerations

Epoxy resists blistering under pH levels ranging from 6.8-8.2, making it ideal for saltwater pools. Expect 30% less color fade versus acrylics over 5 years. Note: surface temperatures must stay between 55-90°F during application.

Best Acrylic Pool Paint Options

Water-based acrylics like Benjamin Moore’s Armaloy allow easier DIY use with fast drying times (4-6 hours). While less durable than epoxy, newer hybrid formulas now offer 3-5 year lifespans for under $50 per gallon.

Application Advantages

Acrylics work with sprayers, rollers, or brushes, needing just two coats versus epoxy’s three. Their lower viscosity fills minor surface cracks up to 1/16″ wide without separate patching. Recoat windows shrink to 2-4 hours in dry climates.

Step-by-step Gunite Pool Paint Process

Proper execution matters just as much as product selection. Rushed prep or incorrect curing ruins even premium paints within months.

Preparing the Pool Surface

Drain the pool fully, then power wash at 3,000 PSI to remove algae and loose particles. Etch the gunite using muriatic acid (1 part acid to 4 parts water) until the surface feels like 80-grit sandpaper. Rinse thoroughly for 48 hours. After preparing the surface, it’s crucial to address any metal contaminants in the pool water. Removing metal from the pool water helps prevent stains and keeps the water clear.

Repairing Cracks and Damage

Fill structural gaps wider than 1/8″ with hydraulic cement, smoothing with a trowel. For spider cracks, apply silicone-based sealants like Sikaflex Pool Coating. Let repairs cure 72 hours before painting.

Proper Paint Application Techniques

Use a nylon-bristle brush for corners, then switch to a 3/4″ nap roller for open areas. Maintain wet edges to prevent lap marks. Spray systems require HVLP guns with 2.5mm nozzles, held 12-18″ from the surface. Two coats minimum, three for epoxy.

Curing and Drying Requirements

Let acrylics dry 72 hours before refilling. Epoxy needs 7 days cure time with humidity below 70%. Never paint if rain is forecast within 48 hours. Water introduced too soon causes delamination.

Regional Considerations for Painting Gunite Pools

Climate directly impacts paint performance. Local weather patterns dictate product choices and application timelines.

Painting Gunite Pools in Florida

High humidity extends drying times by 30-50%. Opt for fast-curing acrylics or moisture-tolerant epoxies like Sherwin-Williams Tile-Clad HS. Schedule projects during October-April to avoid summer thunderstorms.

Painting Gunite Pools in Texas

Intense UV radiation in cities like Austin or Dallas demands paints with titanium dioxide pigments. Epoxy lasts longer here than acrylics, resisting 100°F+ heat better. Apply before 10 AM to prevent blistering on hot surfaces.

Climate Impact on Paint Performance

Freeze-thaw cycles in northern states cause premature cracking unless elastomeric paints are used. Coastal regions require salt-resistant formulas with zinc additives. Desert climates need UV-stable pigments to prevent chalky fading.

With location-specific prep complete, focus shifts to preserving your newly coated surface through targeted maintenance practices.

Maintenance After Painting a Gunite Pool

Keeping a freshly painted gunite pool looking sharp requires targeted care. Proper maintenance extends the paint’s lifespan while preventing premature wear from chemicals, weather, and regular use. Just like with gunite pools, the lifespan of fiberglass pools also depends on maintenance. Taking good care of a fiberglass pool can help ensure it lasts for many years.

Cleaning Best Practices

Use a soft-bristle brush weekly to remove debris without scratching the surface. For gunite pool paint, avoid abrasive tools like wire brushes – they create microtears that let algae take hold. Balance water chemistry meticulously: maintain pH levels between 7.2-7.8 and keep chlorine under 3 ppm. High alkalinity (above 120 ppm) causes scaling, while low levels degrade paint adhesion. Keeping the pool clean is important for a healthy environment. A clean pollen pool helps ensure safe swimming and minimizes allergens in the water.

Vacuum twice weekly with a weighted hose to prevent swirling marks. Skim leaves promptly – tannins stain lighter colors like white or aqua. In areas with hard water, add a metal sequestrant to prevent mineral deposits from etching into the paint.

When to Repaint

Epoxy-based gunite pool paint lasts 5-7 years in moderate climates, while acrylics fade faster at 2-3 years. Check for chalky residue on hands after swimming – a sign of breaking down binders. Peeling along steps or corners means water has breached the coating. In Florida’s UV-heavy zones, plan to repaint 18 months sooner than manufacturers suggest. Texas pools with clay soil may need touch-ups near drains due to abrasive sediment. Proper maintenance plays a key role in the longevity of your pool. When cared for well, concrete pools can last for several decades or even longer.

Schedule recoating during dry seasons (spring or fall) for proper curing. Dark colors like black show fading less but absorb heat, accelerating wear in sunny regions.

Protecting Your Paint Investment

Install a solar cover when the pool isn’t in use – it blocks 95% of UV rays and reduces chemical evaporation. Avoid draining the pool completely; sudden hydration shifts make gunite crack. For winter, keep water levels stable and use a mesh safety cover instead of solid tarps that trap moisture. Taking these steps not only protects your pool but also helps keep it clean and green. A well-maintained pool enhances your outdoor space while providing a safe and enjoyable environment for everyone.

Address leaks immediately – a 1/8-inch crack can let 500 gallons seep out weekly, destabilizing the paint bond. Use enzyme-based cleaners instead of harsh acids to remove organic stains. Test water weekly with a Taylor K-2006 kit to catch imbalances before they damage the finish.

Following these steps helps preserve your gunite pool’s appearance, but even well-maintained coatings eventually wear down. Spotting early warning signs ensures timely repairs before structural issues develop. Maintaining proper water balance is crucial for pool longevity. A lower hardness pool can significantly reduce wear and tear on surfaces, keeping your pool in great shape for longer.

FAQs About Painting Gunite Pools

Can You Apply Paint Without Fully Draining a Gunite Pool?

Partial painting isn’t recommended—most pool paints require a completely dry surface for proper adhesion. However, some epoxy touch-up kits allow spot repairs above the waterline without full drainage. Always follow manufacturer guidelines for moisture tolerance. When considering maintenance options, think about resurfacing your pool with painted plaster pool. A painted plaster pool can enhance the look and durability of your swimming area.

How Should Peeling Paint Be Addressed Post-application?

Immediately drain the pool if peeling occurs within 30 days. Sand affected areas to bare gunite, re-etch with muriatic acid, and apply bonding primer before repainting. Peeling often indicates improper surface prep or moisture contamination during curing.

What’s the Proper Way to Store Leftover Pool Paint?

Seal containers with plastic wrap under lids and store upside down in a climate-controlled space (50-80°F). Epoxy components must be kept separate and used within 6 months. Never freeze paint—crystallization ruins chemical formulations.

Does Pool Painting Impact Property Resale Value?

A professionally painted pool can boost curb appeal temporarily but may raise concerns about underlying issues. Document the process and warranties—68% of appraisers view recent paint jobs neutrally if accompanied by maintenance records. Properly maintained concrete surfaces can enhance the overall look of your outdoor space. This is where paint for concrete pool decks comes into play, offering both aesthetics and durability.

How Do You Test Paint Adhesion Before Committing?

Perform a cross-hatch test: score a 1″ grid into a small primed area, apply firm tape, and rip it off. If more than 10% of paint flakes off, surface prep needs improvement. Professionals use elastometer devices to measure bond strength (minimum 250 psi required).

Closing Thoughts

Painting a gunite pool can refresh its appearance, but requires careful planning. The right paint choice, proper surface prep, and climate considerations all impact results. Epoxy lasts 5-7 years, while acrylic may need reapplication every 2-3 years.

Costs range from $1,500-$4,500 for professional jobs. DIY cuts expenses by 40-60%, but demands precise technique. Remember that darker colors absorb heat, while lighter shades help visibility.

For precise chemical balancing after painting, try My Pool Calculator. Our tools help maintain water quality without guesswork, protecting your new finish.

Whether tackling the project yourself or hiring pros, proper maintenance extends your paint’s lifespan. Regular brushing, balanced chemicals, and prompt crack repairs keep your pool looking sharp.

Additional Resources for You:

• Tamminen, T. (2019). The Complete Pool Manual for Homeowners: A Step-by-Step Maintenance Guide. New York, NY: Skyhorse Publishing.
• Painting gunite pool | 2 Cool Fishing Forum
• How to Repaint Your Inground Pool—The Right Way
• Should you paint your pool? | ASP – America’s Swimming Pool Company
• r/pools on Reddit: Gunite Pool Painting