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Apr 26, 2017
Blister surface preparation
by: Brad Rodgers

I have a gunite pool with pool paint blistering on the walls. I have scraped the walls (a flat edge shovel works great),which popped the blistered (water came out of them) and now my pool surface looks like a bad case of acne. After TSP/Acid/TSP - do I need to do anything to smooth/fill these slight depressions or apply primer/paint and move on?

Hi Brad. If there are only slight depressions and the surface is properly prepped and ready, then you can move on. But really, this is a judgement call on your part. Some people might say the depressions or ridges are too much and want to move forward with having a smoother surface. Others might say they're alright.

If you'd like to make some minor repairs and have the surface a bit smoother and aesthetically pleasing, here's what has worked for me. Please remember to read all the labels and mix accordingly.

Also, the product websites are an excellent source for more information if you need it. Remember that failure to correctly prep the surface can result in undesired effects, so do your homework and correctly apply the material.

You can buy pool patch from your local pool store or hardware store. You can also make a mixture of 1/3 white Portland cement and 2/3 white sand.

Make the plaster mix and add the right amount of acrylic bonding and water and mix to the consistency of peanut butter. Apply with a pool trowel with rounded edges. Lightly spray the area with a spray water bottle or apply bonding additive like Acryl 60.

Get some of the mixture on the trowel and apply to the area, smoothing it as you go along. Remove any air bubbles and allow to dry for 15 - 20 minutes, then repeat. If the patch seems too dry, you can mist it with the water bottle.

Keep the patch a little moist and cover with a sheet, or something similar. You don't want direct sun on it. Allow to cure for an hour, then paint as usual.

This process worked at the YMCA pool when I had to do repairs to the plaster. Remember, for making repairs and painting, the surface needs to be prepped correctly.


Oct 11, 2015
Pool Paint Oxidising
by: Nick from Australia

I have a pool repainting business in Australia, and I am having problems every now & then (at least 2 months after completion) from the paint oxidising. It's definitely not the surfaces, as it's happened on both concrete & fibreglass.

Not even my paint supplier could come up with an exact answer, but I tend to think it could be chemical imbalance from the local pool man putting his chemicals in reacting with the 2pac paint we apply?

Do you have any ideas?

Jul 17, 2014
Painting completed
by: Beth

Thanks for your feedback Jennifer. We just finished repainting our pool and we did our best to follow the instructions exactly and we had several conversations with folks as Sau Sea to ensure we did it right. The main reason we chose to do it ourselves is because we knew very few pool companies would be willing to wait the required times for drying - after cleaning, between coats, and before filling. We are currently in the waiting stage to fill - plan to wait at least 14 days. Never the less, after painting both first and second coat we did end up with an area of blisters in front of steps - most likely due to area getting a double coat from painting one direction on step front and then painting on pool floor. We are hoping they will just dissapate and not open when pool is filled. Is there any protocol to follow when blisters form? We were able to press larger ones out but the numerous small ones don't seem to depress. The one tip we did get but did not find in directions anywhere, including the paint can, is the importance of thinning the paint - approx. 1/2 gal to 5 gal. This made the paint much easier to work with. We'll see what happens when the water is added!

Jul 12, 2014
Love pool paint
by: Jennifer Nucci Everyday Pools

I have successfully been using Sau Sea swimming pool paint for 20 years personally and on our customers pools.

After FULLY EXPLAINING the instructions and warning the customers of pitfalls if the instructions aren't followed to a T, we have had very few problems with homeowner application.

The biggest caveat is drying times either before painting and/or before filling. Which will rapidly lead to blistering and peeling. Sau sea rubber base paint does in fact "melt" one coat into another, it has a fusion bond technology.

And the older 1996 coating as long as it was rubber base is compatible with the newer eco choice rubber base formula. I like to email a pdf of the actual paint can label to the homeowner so they understand exactly what to do before hand and i can answer all their questions before it's an issue.

I just had a homeowner repaint his pool and today come into my store with beautiful pictures of a successful job. Pool should not have any extra steps, ie. sandblasting.

Sau Sea is based in NJ and have a number of highly qualified dealers they recommend to paint residential and commercial pools.

Good Luck!

Jun 07, 2014
More Info
by: Beth

Thanks for the feedback. Part of our problem is that very few companies paint pools anymore.

Those that are willing to don't have a lot of experience because painting has become somewhat obsolete - everyone recommends plaster. We have an old concrete pool with no tile or coping so paint really our only option without a complete reno.

We will probably paint it ourselves but cringing at the thought of having to pay $2K or more to have the old paint removed.

Trying to find out if it is reasonable to power wash and scrape if anyone has tried this vs. complete removal of paint down to bare concrete.

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