How long does pool plaster take to dry?

Author: Myrtice Senger  |  Last update: Tuesday, January 20, 2026

Pool plaster will immediately start hydrating when mixed, and 86% of the cement in the plaster will cure within the first 28 days. This is why timely filling and dedicated startup maintenance is critical to any new pool plaster project.

How long does it take for pool plaster to harden?

Curing plaster refers to a maturation process of the new plaster finish when it strengthens and seals. The pool finish will start to cure immediately after mixing. Sixty percent of the curing process occurs in the first 4 weeks and will continue over the next 8 to 10 months.

What happens if you don't brush new pool plaster?

Brushing pool plaster during the curing process ensures a smooth finish. Skipping this step allows calcium carbonate to form, which creates a gritty and rough texture on the pool walls and floor.

How long does a pool patch take to dry?

A: Pool patch will usually cure within a hour and should be ready to fill with water then, this is also dependent on temperature, humidity and thickness of the patch. Make sure to follow mixing instructions, let the patch cure hard and then you are ready to fill.

What happens if it rains after plastering a pool?

While the rain can harm the chlorination process, it can also create issues with the plastering process too. Rain will cause streaks, discoloration, and curing mistakes once the plastering has begun. Not only will it cause streaking, but it also causes something called hydrostatic holes in the granite and plaster.

"Expert" Advice: DIY Pool Plastering?

How soon can you use a pool after plastering?

The good news is that the cure time for pool plaster is fairly quick. According to the National Plasterers Council, around 85% of the plaster's cement cures within the first month. It's why this initial 30 days is when you need to take preventive steps to protect the plaster.

How long does it take plaster to dry in a pool?

Your New Plaster Finish. The initial period of your pool ownership is the most critical. 60% of the curing or maturing process of a plaster finish occurs in the first 28 days and will continue over the next 8 to 10 months.

Does pool plaster cure underwater?

New plaster cures underwater through hydration, so it is important to get the pool filled as quickly as possible. Depending on the source of the fill and the volume of the pool, it is often necessary to have water trucked in to ensure the plaster does not dry out and cause cracking.

How long does it take for a wet patch to dry?

Sometimes, damp plaster may take several weeks or even months to fully dry. However, it's important to note that more than simply waiting for the plaster to dry on its own may be needed to address the underlying cause of the dampness, which could lead to further problems in the future.

Can new pool plaster get wet?

Plaster is especially formulated to stay underwater at all times. So the faster your pool fills, the happier we all will be! NEVER USE SOFT WATER TO FILL YOUR NEW POOL! IT COULD DISSOLVE THE PLASTER!

When can I vacuum new pool plaster?

VACUUMING—Your pool should not be vacuumed during the first two weeks after plastering to prevent blemishes from the vacuum wheels. HEATER—If your pool has a heater, do not use it for the first two weeks. AUTOMATIC POOL CLEANER—If you have an automatic pool cleaner, do not use it for the first four weeks.

Should I shock my newly filled pool?

Step 3 – Add Algaecide: We've skipped over shocking the pool, and unless your fill water has poor clarity or a strong chlorine smell, there is probably no need to shock the pool.

Is it OK to leave a plaster pool empty?

ANSWER: No, if you do that, you could ruin the inside surface of the pool. The plaster will dry out and deteriorate, and you'll have to replaster, which could easily cost $10,000.

Is it safe to swim in a newly plastered pool?

It is recommended that you do not swim in the pool until the water is properly balanced. Test fill water for pH, alkalinity, calcium hardness, and metals. Record test results. Start the filtration system immediately when the pool is full to the middle of the skimmer or specified water level.

How many years does pool plaster last?

Standard white plaster will do what it is supposed to. It will be watertight and serve its function for that 10 to 15 years depending on maintenance. But pebble finishes, properly installed and maintained, will last 20 to 30 years or more.

How long does it take for plaster to fully cure?

Plaster generally takes around three to five days to dry fully. It will turn from a brown colour to pale pink. Then, you can apply your mist coat of paint or wallpaper. How long the plaster takes to fully dry can depend on how thick it is, and the conditions of your home.

How long does water damaged plaster take to dry?

Your plaster must be completely dry before you begin any decorating. The plaster will need a minimum of 3-5 days to achieve full dryness, but for some jobs, it may take up to 4 weeks. Once it's dried, the plaster will appear pale pink, and any previous brown patches will have disappeared.

How long does patch take to dry?

Wait two hours to sand or paint fast-drying spackle. Traditional spackle takes one to two hours to dry fully. Many experts advise waiting 24 hours to paint or sand normal spackle. Several factors affect drying time, such as temperature and humidity.

Does a wet patch harden?

Product will reach full cure in 24 hours. Environmental or site specific conditions may lead to a variation in dry time.

Does plaster make a pool waterproof?

"WATERPROOF" The National Plasterer's Council Technical Manual states that the plastering of a swimming pool when properly mixed, placed, and finished, should create the desired decorative finish that is maintainable and watertight.

Can you go swimming with a plaster on?

The best option for covering a wound for swimming is to use a waterproof plaster. These specially-designed bandages cover the wound area in full and provide a tight tape seal around the edges. This can help ensure that water does not penetrate the seal and the wound stays dry and covered.

Does pool plaster darken as it cures?

One major thing to remember is that pool plaster can change colors or overall look as it sets and cures.

How long after you plaster a pool can you fill it with water?

THE FILING PROCESS. The plaster crew will set up fill hoses (provided by the pool owner) in the deep end of the pool and will have the nozzle end covered with a clean, soft cloth. Once water is introduced, the pool should be filled within 36 hours (or other period time per plasterers recommendation).

How long does it take for a pool patch to dry?

You can find pool patches that advertise a quick curing time if you're in a hurry (about three to four hours.) However, it's best to let the area cure for about 24 hours before jumping back in your pool.

What happens if it rains right after pool plaster?

It is acid, and the cement on the plaster can deteriorate over prolonged exposure to rainwater. Other components, such as the cement sealer or a protective coating on the plastering, can also oxidize due to rain. Moreover, the swimming pool needs to be appropriately drained or shielded during downpours or inundations.

Previous article
What is the difference between gardz and Peel Stop?
Next article
What paint to use on oil-based primer?