Swimming pool paint UK

Concrete swimming pool outside with swimming pool paint

Special swimming pool coatings for safety & durability

Swimming pool coatings form a protective layer on swimming pool floors and the inner walls of pools. The swimming pool paint prevents bacteria and other microorganisms from bonding to the pool surface. This makes the pool easy to clean and eliminates microorganisms which may be hazardous to health.

Naturally the most important function of the swimming pool paint is safety!

Prevent accidents with pool paint

Swimming pools are great locations for fun and relaxation, however, accidents happen; sharp edges and slippery floors are the main causes. Fortunately, a swimming pool coating can remarkably reduce these incidents. The coatings additionally are aesthetically appealing; they are available in a wide range of colours and provide fresh and seamless looks. Sometimes the looks alone are the reason to choose for a swimming pool paint.

To summarise, swimming pool paint is:

  • Seamless: no sharp edges, gaps or seams which might cause scratches and wounds
  • Waterproof: the coating does not absorb water. The underlying surface remains dry
  • Colourful: available in many colours. For example a fresh blu colour or a natural concrete look are both possible
  • Hygienic: easy to clean, and bacteria, fungi and pollution do not bond to the surface

 The two types of swimming pool paint

Swimming pool paint is usually either an epoxy or a polyurethane system. But which one should you choose?

It all depends on your pool.

Epoxy swimming pool paint provides an extremely hard wearing durable surface which is also possible to make seamless. Epoxies in general are harder and more durable than polyurethane coatings. The disadvantage of epoxy, however, is that due to its hardness it is not suitable for new (concrete) surfaces which are not yet completely settled. Therefore, the coating is not recommended for areas of significant temperature fluctuation; thus not for outdoor pools in areas of cold winters and hot summers.

Another pitfall of swimming pool paint epoxy is that it has a rather long curing time; hardening namely takes from 5 to 7 days meaning that the pool is out of use at least for that time.

Polyurethane swimming pool coating, in turn, is more elastic and more suitable for filling gaps than epoxy. The coating is better for fluctuating temperatures and it is more scratch fast.

The disadvantage is that PU is more difficult to apply especially in humid areas; for the surface must be completely dry and clean.

Comparing to epoxies, the PU coating’s advantage is its shorter drying time; it requires approximately 3 days to successfully harden.

And what about the looks?

Both of these coating are available as clear coats which allow the texture and colours to remain visible. They are however, also available in different colours the range being greater in polyurethanes. The coatings are additionally, available with light reflective pigments.

Both PU and epoxy systems are applicable on:

  • Concrete
  • Polyester
  • Stone tiles
  • Steel tubs
  • Wooden bathing tubs
  • Jacuzzi’s

Read more about epoxy coatings and paints.

Suitable swimming pool paint for concrete pools

Underwater man swimming in pool

Concrete is a very common material for indoor and outdoor pools. It however, is a porous, water absorbing material unless not appropriately treated. The best swimming pool paint for concrete pools is polyurethane, if the pool in question is new.  Epoxies are also suitable, but only as maintenance paint on older concrete pools which are not subject to drastic temperature fluctuations.

Swimming pool paint for fiberglass

Fiberglass pools are becoming more and more popular because they often are more durable than concrete pools. They are, however, slightly more expensive to purchase and install. On a long run they, nonetheless, may be a cheaper option due to the fact that they do not need that much maintenance and in general have a longer lifespan than concrete pools.

“When the fiberglass pool needs painting, the coating choice is not difficult. Epoxy solution is namely the only suitable swimming pool paint for fiberglass. Epoxy adheres well to the surface and provides a durable layer for the pool.”


Underwater coatings for quick fixing

Usually swimming pool maintenance requires emptying the pool and preparing the surface. When the damage needing repair is on small area, it is., especially for large commercial pools, inconvenient to let the pool run empty to fix small damage. Therefore, an underwater pool coating sometimes saves a lot of time, effort and money. The underwater coatings can have the following advantages:

  • Little or no product dispersion during application
  • Smooth paint-like finish which can be coloured to match the shade of the rest of the pool
  • Easy to apply and only requires little surface preparation
  • Smoothness eliminates risk of scratches for swimmers
  • Significant cost reduction due to the fact that application and curing take place underwater
  • Withstands physical stress resulting from wave action
  • Exceptional adherence on most swimming pool surfaces such as tiles, concrete and paints
  • Available as environmentally variations without solvents or styrene

Painting indoor swimming pools

When it comes to indoor pools, the choice between PU and epoxy solutions exists. Epoxies are namely also suitable due to the fact that the surrounding temperature does not drastically fluctuate. Applying epoxies however, requires the concrete to be some 4 weeks old to make sure no movement will take place.

Bear in mind:

Also the areas around the indoor pool should be coated appropriately with wall and ceiling paint that are resistant to humidity and occasional exposure to water.Inside pool with swimming pool paint


Swimming pool paint is also suitable for other uses

Next to swimming pools, the waterproof swimming pool coatings are also applicable on other areas. The same coatings are suitable also for other areas where water is constantly present on the surface. The coatings are applicable for example in:

  • Changing rooms at pools
  • In and around water attractions such as water slides
  • Saunas
  • Shower areas for example in gyms
  • Wellness areas with jacuzzi’s and pools
  • Ponds

Applying swimming pool coatings

Whether the swimming pool coating is suitable for home applications, is dependent on the material, and location of the pool. Some swimming pool floors and walls may have become porous during the years, then professional information and advice are needed. They will determine the condition of the pool and whether sand blasting or just an adhesion primer, are needed.