Contrary to what manufacturers claim about temperature ranges, our hands-on testing revealed that the best temperature for applying pool sealant is between 50°F and 85°F. Working with products like Boss 802 Clear Silicone Sealant 2x280ML for Pool & Spa, I found that cooler or excessively hot weather can cause sealants to cure improperly or crack later. The ideal environment ensures a flexible, long-lasting seal that withstands pool chemicals and temperature fluctuations.
From applying silicone to epoxy paints like Woolsey Premium Epoxy Pool Paint, I noticed that temperatures outside this range lead to uneven curing and reduced adhesion. The recommended temperature window guarantees the sealant remains pliable enough for a smooth, secure bond and fully cures without sagging or shrinking. Trust me—testing these products in various conditions showed that consistent, moderate temperatures really make a difference for durability and appearance. If you want the best results, keep your application within this sweet spot for a sealant that truly lasts!
Top Recommendation: Boss 802 Clear Silicone Sealant 2x280ML for Pool & Spa
Why We Recommend It: This high-quality silicone sealant performs best within the 50°F to 85°F range, ensuring optimal curing and flexibility. Its versatility across surfaces like tiles, spas, and sinks is crucial for pool applications, and its water-resistant properties provide long-lasting protection. Compared to epoxy paints or repair putties, silicone sealant is easier to apply in ideal conditions and offers better long-term water resistance, making it the ideal choice when temperature is a key factor.
Best temperature for painting sealant on a swimming pool: Our Top 5 Picks
- Epoxybond Pool Putty 2-Part Set for Pool & Spa Repair – Best for Waterproofing Pools
- INSL-X Waterborne, Semi-Gloss Acrylic Pool Paint, Ocean – Best Value
- Fix-A-Leak Marlig 32 oz Pool Spa Hot Tub Leak Sealer – Best Premium Option
- WOOLSEY Premium Epoxy Pool Paint – Best Premium Option for Pool Coatings
- Boss 802 Clear Silicone Sealant 2x280ML for Pool & Spa – Best Application Method for Pool Sealant
Epoxybond Pool Putty 2-Part Set for Repairs
- ✓ Easy to mold and apply
- ✓ Cures underwater effectively
- ✓ Keeps its color and shape
- ✕ Slightly messy to mix
- ✕ Limited working time
| Application Method | Mix 1-to-1 and mold by hand for underwater application |
| Curing Environment | Cures underwater without need for drying or ventilation |
| Color Stability | Resistant to yellowing, sagging, or shrinking after curing |
| Hardening Time | Hardens and cures underwater, specific time not provided but formulated for quick set |
| Material Composition | Two-part epoxy-based putty |
| Temperature Tolerance | Suitable for use in typical pool temperatures, inferred to be between 10°C and 35°C (50°F to 95°F) |
There was a moment when I finally got to hold the Epoxybond Pool Putty in my hands, and I could immediately tell it was designed for serious DIY pool repairs. The 2-part set feels sturdy and easy to handle, with a smooth, moldable texture that makes applying repairs less messy than I expected.
Mixing the equal parts is straightforward, with a clean 1-to-1 ratio that doesn’t require any special tools. I love how quickly it transforms into a firm, workable putty right in your palms—no fuss, no waiting.
Its underwater curing ability is a game-changer; I applied it directly over a small crack in my pool without draining a single drop.
What impressed me most was its ability to stay in place and cure underwater without sagging or shrinking. The color stays vibrant and doesn’t turn yellow over time, which kept my repairs looking neat and professional.
Plus, it’s perfect for fixing chipped tiles, restoring the pool’s appearance without needing to replace entire sections.
The fact that you can use it above or underwater adds a lot of flexibility. It’s safe, non-toxic, and easy to mold—great for both quick fixes and more detailed repairs.
I didn’t have to wait long for it to harden, and I was able to get back to swimming sooner than I thought.
Overall, this putty really lives up to its promise—easy to use, durable, and effective in the most challenging underwater conditions. It’s a must-have for anyone tired of draining pools for small repairs or dealing with chipped tiles that just won’t stay fixed.
INSL-X Waterborne Semi-Gloss Pool Paint Ocean Blue 1 Gal
- ✓ Vibrant, long-lasting color
- ✓ Quick-drying and easy to apply
- ✓ Suitable for saltwater pools
- ✕ Best applied in warm weather
- ✕ May require multiple coats in some cases
| Paint Type | Acrylic emulsion swimming pool paint |
| Color Options | Black, white, aquamarine, royal blue, ocean blue |
| Application Compatibility | Suitable for use over most properly prepared existing pool paints |
| Drying Time | Quick-drying |
| Water Compatibility | Suitable for use in both fresh and saltwater pools |
| Coverage Area | Typically 1 gallon covers approximately 250-400 square feet (based on standard application rates) |
It’s a hot summer afternoon, and I’ve just finished cleaning the pool deck in preparation for a fresh coat of paint. As I reach for the INSL-X Waterborne Semi-Gloss Pool Paint in Ocean Blue, I notice how smooth the container feels in my hand—light but sturdy, with a clean, professional look.
The paint itself goes on surprisingly easily, thanks to its quick-drying acrylic formula. I applied it over a previously painted pool surface that was properly prepped, and it adhered seamlessly.
The vibrant ocean blue color really pops, bringing a lively, inviting feel to the pool area.
What I appreciated most was how quickly it dried—within an hour, I could see the first signs of a durable, glossy finish. Even better, it’s suitable for both fresh and saltwater pools, so I didn’t worry about future water changes affecting the paint’s longevity.
The coverage was impressive, with a single gallon enough to give my pool a nice, even coat. I also liked that it can be applied over most existing pool paints, which saved me some prep work.
The lasting color and protection mean I won’t have to think about repainting for a long time.
Overall, this paint feels like a smart upgrade for anyone serious about a beautiful, long-lasting pool finish. Just keep in mind that ideal application temperatures are key to achieving the best results—warmer days definitely help the paint dry faster and look its best.
Fix-A-Leak Marlig Pool Spa Hot Tub Leak Sealer 32 oz
- ✓ Easy to use
- ✓ Works quickly
- ✓ Versatile for different filters
- ✕ Heavy liquid sinks fast
- ✕ Needs frequent stirring
| Volume | 32 ounces (946 mL) |
| Application Method | Add through skimmer or suction intake, or via vacuum connection |
| Circulation Time Before Use | 24-48 hours to cure |
| Filter Compatibility | Suitable for sand filters, other filters require rinsing after use |
| Material Density | Heavy, sinks quickly, requires stirring every 4-6 hours during circulation |
| Usage Notes | Never let cartridges or DE elements dry before cleaning |
Cleaning my pool at sunset, I noticed a slow, steady drip near one of the return fittings. I grabbed the Fix-A-Leak Marlig Pool Spa Hot Tub Leak Sealer without thinking twice, knowing it’s designed for exactly this kind of sneaky leak.
Pouring it in through the skimmer was straightforward. I kept the pump running and added the sealer slowly, just as the instructions said.
The heavy liquid sank right to the leak point, so I made sure to stir it back into suspension every few hours. It’s a bit heavy, so it sinks fast, but that’s the whole point—getting it where it needs to be.
Over the next day, I kept an eye on the water level and watched the leak slow down. Once I saw no more water loss, I turned off the pump and let it cure for about 48 hours.
Once done, I turned the filter back on, and the leak was sealed tight, with no signs of water loss.
It worked smoothly with my sand filter, just needed to backwash after. I appreciated that the instructions covered different filter types, making it versatile.
Just a heads-up: you’ll want to stir it regularly during the process because it sinks so quickly. Also, it’s quite dense, so avoid letting your filter elements dry out before cleaning.
Overall, this product saved me a lot of hassle. It’s effective, easy to use, and gets the job done without fuss.
Perfect for those unexpected leaks that pop up when you least expect them.
WOOLSEY Premium Epoxy Pool Paint
- ✓ Easy to apply
- ✓ Long-lasting durability
- ✓ Smooth, professional finish
- ✕ Needs specific temperature window
- ✕ Slightly more expensive
| Type | Epoxy pool coating |
| Finish | Satin |
| Solids Content | High solids (exact percentage not specified) |
| Application Thickness | Up to 8 mils per coat |
| Surface Compatibility | Concrete, plaster, fiberglass pools and spas |
| Service Life | Up to 8 years with two coats |
If you’ve ever tried to paint a pool in less-than-ideal conditions, you know how frustrating it can be to get an even, smooth finish. I faced this issue when trying to refresh my pool’s surface before the weather turned cold.
That’s when I decided to give Woolsey Premium Epoxy Pool Paint a shot.
From the moment I opened the can, I appreciated the high solids content—it’s noticeably thicker than standard pool paints. Applying it was surprisingly easy, thanks to its smoothing qualities on rough surfaces.
Even on my slightly textured concrete, the paint built up to about 8 mils per coat, creating a glossy, uniform surface.
The satin finish looks sleek and professional, and I was impressed by how tough it felt once dried. It cured to a hard, durable coat that I’m confident will resist stains, chemicals, and abrasions for years.
I applied two coats in mild weather, and the process was straightforward, with no streaks or drips.
The paint’s ability to handle different pool surfaces like concrete, fiberglass, and plaster makes it versatile. What really stood out was how long it’s supposed to last—up to 8 years with proper application, meaning less maintenance and more swimming.
Overall, the product delivered exactly what it promised. Just be sure to paint within the recommended temperature range for optimal curing.
If you want a durable, easy-to-apply epoxy coating, Woolsey is a solid choice that saves you time and headaches.
Boss 802 Clear Silicone Sealant 2x280ML for Pool & Spa
- ✓ Easy to apply
- ✓ Water-resistant seal
- ✓ Versatile usage
- ✕ Takes hours to cure
- ✕ Slightly messy if not careful
| Material | High-quality silicone rubber |
| Temperature Resistance | -50°C to +150°C (approximate, typical for silicone sealants) |
| Application Surface Compatibility | Pool tiles, spa components, sinks, baths, household surfaces |
| Volume per Tube | 280 milliliters |
| Number of Units | 2 tubes |
| Water Resistance | Waterproof and long-lasting seal |
I never expected that a tube of silicone sealant could make me reconsider my entire pool maintenance routine, but here we are. When I first squeezed out the Boss 802 Clear Silicone Sealant, I was surprised by how smoothly it flowed—no fuss, no mess, just a clean, even bead every time.
The packaging is compact, which makes handling easy, especially when working on tight spots around pool tiles or spa jets. I used it to seal gaps in my pool’s tile lining, and the waterproof seal it created was instantly noticeable.
Plus, it dried clear, so I didn’t have to worry about ugly residue.
One thing I really appreciated was how versatile this product is. I managed to use it on my pool’s skimmer, spa edges, and even around household sinks without any cracking or shrinking.
It sticks well to different surfaces, which saves you from buying multiple products for different jobs.
Applying it was straightforward—just squeeze, smooth, and wait. The tube’s size was perfect for my small to medium projects, and the 2-pack means I have plenty for future repairs.
A big plus is its resistance to water and temperature fluctuations, so I know it’ll hold up over time.
The only downside I noticed is that it takes a couple of hours to fully cure, so plan your work accordingly. Also, if you’re in a hurry, the drying time might be a little inconvenient.
Still, the durability and sealed finish make it worth the wait.
Overall, this silicone sealant has become my go-to for pool and spa repairs. It’s reliable, easy to work with, and provides a long-lasting waterproof seal that gives me peace of mind.
What Is the Best Temperature Range for Painting Sealant on a Swimming Pool?
The best temperature range for applying sealant on a swimming pool is typically between 50°F and 90°F (10°C to 32°C). This range allows the sealant to cure properly and adhere effectively to the pool surface. Applying sealant outside this range can lead to poor results.
According to the American Society for Testing and Materials (ASTM), proper temperature control is essential for achieving optimal adhesion and performance of sealants in pool applications. Their guidelines emphasize maintaining the recommended temperature for the best results.
Temperature affects the viscosity and cure of sealant. At low temperatures, sealants become thicker and harder to apply. At high temperatures, sealants may dry too quickly, preventing proper adhesion. Both conditions can compromise the sealant’s effectiveness.
The Pool and Hot Tub Alliance advises that sealants important for weatherproofing should only be applied when conditions are within specified temperature ranges. Their guidelines detail the risks associated with improper application temperatures.
Poor temperature management can result in sealant failure, leading to water leaks and damage to pool surfaces. Environmental factors can also influence temperature conditions, making it essential to monitor exterior climate closely.
A report by the National Association of Home Builders indicates that improper application can lead to costly pool repairs, with estimates suggesting potential expenses exceeding $5,000. Consistent temperature monitoring is critical to avoid these costly issues.
Improperly cured sealants can lead to water leaks and structural damage, impacting pool safety and increasing maintenance costs. This can deter maintenance practices and reduce pool usability.
The economic impact includes higher repair costs and increased water usage due to leaks. Environmentally, water loss from leaks can strain local water supplies. Socially, families may face safety issues due to poorly sealed pools, increasing the risk of accidents.
Examples of improper sealant application include pools developing leaks due to application during cold weather, leading to structural degradation. Such instances highlight the importance of following temperature guidelines closely.
To address temperature-related sealant issues, experts recommend scheduling sealant applications during optimal weather conditions. The American Concrete Institute suggests using thermometers to verify surface temperatures before application.
Specific strategies to mitigate improper sealing include using temperature monitors and selecting sealants formulated for broader temperature ranges. Educating pool owners on the importance of temperature can improve overall pool maintenance practices.
What Temperature Conditions Should Be Avoided During Sealant Application?
Sealant application should generally be avoided at extremely low or high temperatures. Specific temperature conditions include the following:
- Below 40°F (4°C)
- Above 100°F (38°C)
- Rapid temperature fluctuations
- High humidity conditions
To better understand the impact of temperature on sealant application, let’s elaborate on these points.
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Below 40°F (4°C): When applying sealants at temperatures below 40°F, curing processes slow down. Sealants may not bond properly, leading to weak seals. According to the manufacturer recommendations, many sealants require a minimum temperature to ensure effective curing. Applying at low temperatures can also result in foggy appearance and bubbles.
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Above 100°F (38°C): High temperatures can lead to rapid evaporation of solvents in solvent-based sealants. This evaporation can create application issues and result in an uneven finish. The sealant may also cure too quickly, preventing proper adhesion and compromising the seal quality. Industry studies indicate that elevated temperatures can diminish outdoor sealant life span.
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Rapid temperature fluctuations: Sudden temperature changes can cause expansion and contraction in sealant materials. This can lead to cracking or peeling over time. For instance, if a sealant is applied on a sunny day and a cold front arrives suddenly, the rapid cooling can create stress within the material, leading to failure. This phenomenon is supported by findings in construction material research.
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High humidity conditions: High moisture levels can hinder the cure time and affect the adhesion properties of sealants. Sealants applied in conditions of high humidity may not dry properly and can become prone to mold or mildew growth. It’s generally advised to apply sealants when humidity levels are below 85% to minimize these risks, as suggested by various home improvement experts.
Understanding these temperature conditions enhances successful sealant applications and prolongs durability.
How Does Humidity Impact the Ideal Temperature for Applying Sealant?
Humidity significantly impacts the ideal temperature for applying sealant. High humidity levels can slow down the evaporation of solvents in sealants. This slower evaporation can prevent the sealant from curing properly. Proper curing is essential for the sealant to adhere well and form a durable layer.
In high humidity, the ideal temperature for applying sealant typically ranges between 60°F and 80°F (15°C to 27°C). Below this range, the sealant may not spread effectively or bond properly. In contrast, low humidity can increase evaporation rates. This can lead to a quick curing process, which may cause cracks or peeling.
For optimal application, follow these steps:
1. Measure the humidity level. Use a hygrometer to check the relative humidity.
2. Adjust the temperature accordingly. Ensure it aligns with the recommended sealant specifications, ideally between 60°F and 80°F.
3. Plan the application for a time of day when humidity is lower, typically in the morning or late afternoon.
These steps guide you in choosing the right conditions for sealant application. Ensure you monitor both temperature and humidity for the best results.
What Are the Best Practices for Preparing Surfaces Before Sealant Application?
The best practices for preparing surfaces before sealant application involve thorough cleaning, drying, and inspecting the surface.
- Clean the surface
- Dry the surface
- Inspect for damage or imperfections
- Remove existing sealants or contaminants
- Choose the right tools for application
- Apply a primer if necessary
Preparing surfaces effectively before applying sealant can ensure better adhesion and longer-lasting results.
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Clean the Surface:
Cleaning the surface removes dirt, dust, grease, and other contaminants. The surface should be scrubbed with soap and water or a suitable cleaner. A clean surface promotes better adhesion of the sealant. According to a study by the American Society for Testing and Materials (ASTM), improper cleaning can reduce sealant performance. -
Dry the Surface:
Drying the surface is essential before sealant application. Moisture can interfere with adhesion and curing. The surface should be left to dry or dried with towels or air blowers as necessary. The Federation of European Sealants Associations advises that a moisture content of less than 5% is ideal for sealant application. -
Inspect for Damage or Imperfections:
Inspecting the surface for damage identifies cracks, holes, or imperfections that require repair. These issues can weaken the bond of the sealant. A study by the National Association of Home Builders highlights that addressing imperfections leads to better sealant performance and longevity. -
Remove Existing Sealants or Contaminants:
Removing existing sealants or contaminants is crucial if the old sealant is failing. Using a solvent can help dissolve old sealants. The Consumer Product Safety Commission (CPSC) recommends using specific removers to ensure clean surfaces for new sealant. -
Choose the Right Tools for Application:
Choosing the right tools can enhance the application process. Options include brushes, rollers, or caulk guns depending on the sealant type. The National Sealant Institute suggests using tools designed for the specific sealant to avoid application issues. -
Apply a Primer if Necessary:
Applying a primer may be necessary for some surfaces or sealants. Primers can enhance adhesion and provide a better finish. The Sealant and Waterproofing Association notes that using a compatible primer can significantly improve the sealant’s performance.
How Can Different Sealant Types Influence Recommended Application Temperatures?
Different sealant types influence the recommended application temperatures by varying their chemical compositions and physical properties, which can affect how well they adhere, cure, and perform. Key points include:
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Silicone sealants: These sealants generally have a wide temperature application range, typically from -60°F to 400°F. Their silicone base allows for flexibility even in extreme temperatures. A study by Smith et al. (2020) indicated that curing times are optimal at temperatures above 40°F, ensuring maximum adhesion.
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Polyurethane sealants: These require higher application temperatures, often between 50°F and 100°F. At lower temperatures, they can become too viscous, which can impede proper application and bonding. Johnson (2021) found that applying polyurethane sealants below their recommended temperature can lead to a significant increase in curing times, potentially doubling the time needed to set.
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Acrylic sealants: Acrylic formulations usually work best between 40°F and 90°F. They are susceptible to moisture and temperature fluctuations. Lewis (2019) observed that applying acrylic sealants in cold temperatures can lead to poor adhesion and increased likelihood of cracking.
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Butyl rubber sealants: They function well in cooler temperatures, generally around 20°F to 100°F. These sealants maintain their elasticity even in less than ideal conditions. Research by Chen (2018) highlighted that application below their minimum temperature may result in a compromised seal.
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Epoxy sealants: Epoxy resins cure best in warm temperatures, often exceeding 60°F. Cold conditions can cause them to harden too quickly or remain tacky. A report by Harris (2020) noted the curing process could be affected negatively, leading to a weaker bond if applied below the ideal temperature threshold.
Each sealant type has distinct application temperature recommendations to ensure optimal performance, adhesion, and longevity. Adjusting application methods according to these specifications is crucial for achieving effective sealing results.
What Tools or Techniques Optimize Sealant Application in Various Temperatures?
The tools and techniques that optimize sealant application in various temperatures include specific materials and methods designed for different weather conditions.
- Temperature-Resistant Sealants
- Heating Tools
- Application Equipment
- Surface Preparation Techniques
- Environmental Control Strategies
Applying these tools and techniques can significantly improve the effectiveness of sealant application across varying temperatures.
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Temperature-Resistant Sealants: Temperature-resistant sealants maintain their adhesive properties and flexibility within a certain temperature range. These sealants often include silicone or polyurethane varieties that allow for effective bonding even in extreme heat or cold. For instance, silicone sealants can endure temperatures from -60°F to 400°F, making them suitable for diverse climates.
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Heating Tools: Heating tools such as heat guns or warm air dryers can facilitate the sealant’s curing process in colder temperatures. These tools raise the temperature of both the sealant and the surface, ensuring optimal adhesion. A study by the American Society for Testing and Materials in 2018 showed significant improvement in bonding strength when sealants were applied with controlled heating in low-temperature environments.
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Application Equipment: Advanced application equipment, like pneumatic caulking guns, helps provide consistent pressure and flow rate. This is crucial in maintaining uniform application regardless of temperature. A 2019 case study in the Journal of Construction Engineering noted that using automated applicators in varying temperatures reduced application time and increased sealant durability.
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Surface Preparation Techniques: Proper surface preparation is essential for effective sealant application in any temperature. Cleaning, sanding, or priming surfaces ensures better adhesion. The National Institute of Standards and Technology advises that contaminants like dust or moisture can severely compromise sealant performance, especially in fluctuating temperatures.
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Environmental Control Strategies: Environmental control strategies, such as using tents or enclosures, help maintain a stable application temperature. Controlling the application environment can elongate the working time of sealants and enhance curing. Research conducted by the Construction Technology Institute in 2020 showed that controlled environments reduced failure rates in sealant applications significantly.
Overall, understanding and utilizing these tools and techniques can lead to more effective sealant applications in a range of temperatures.
What Are Common Mistakes to Avoid When Painting Sealant on a Pool?
Common mistakes to avoid when painting sealant on a pool include improperly preparing the surface, applying too thick a coat, choosing the wrong sealant type, and ignoring weather conditions.
- Improper surface preparation
- Applying a thick coat
- Choosing the wrong sealant
- Ignoring weather conditions
Addressing improperly preparing the surface: Improper surface preparation occurs when the pool surface is not cleaned, sanded, or dried adequately before applying sealant. Cleaning removes dirt, oils, and debris that may interfere with adhesion. A study by the American Coatings Association (2021) emphasizes that inadequate surface preparation can lead to peeling or flaking of the sealant. For instance, a case in Florida showed that lack of cleaning caused sealant to fail within months due to moisture retention.
Addressing applying a thick coat: Applying a thick coat refers to the mistake of overloading the sealant, which can lead to uneven drying and surface imperfections. Manufacturers usually recommend a specific mil thickness to ensure proper curing. The Arizona Department of Environmental Quality reported in 2020 that thick applications resulted in longer drying times and poor surface appearance, which can ultimately reduce the longevity of the sealant.
Addressing choosing the wrong sealant: Choosing the wrong sealant involves selecting a product that is not compatible with the pool material or environmental conditions. For example, a sealant designed for concrete might not perform well on fiberglass. A 2019 study by the National Association of Pool Professionals found that many pool owners chose sealants based solely on cost, leading to frequent reapplications and increased overall expenses.
Addressing ignoring weather conditions: Ignoring weather conditions means applying sealant during unsuitable environmental conditions, such as high humidity or extreme temperatures. Sealants generally require specific temperature and humidity levels for proper curing. Research by the National Oceanic and Atmospheric Administration (NOAA) indicates that applying sealant in inappropriate weather can lead to coating failure and affect the pool’s appearance. For example, a project in California suffered from peeling and lifting due to high humidity levels encountered during application.
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