Refinishing/Polishing Gunite Slide

Rancho Cost-a-Lotta

Silver Supporter
Apr 10, 2018
2,403
Rancho Cucamonga, CA
Pool Size
18735
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
CircuPool RJ-45
We had a gunite slide/waterfall combo installed with the pool five years ago. The slide chute is finished with an epoxy paint/coating that only last a little over a year before requiring recoating. The chute usually begins to fail where hairline cracks form and push out calcium that gets under the sealer. They've used a variety of coatings, but none is better than the other. The builder has covered each of these service visits, but this will be the last time. I'm waiting for a call back from the company to schedule a service visit. They usually spend at least 5 hours each time they repair the slide.

I'm looking for a more permanent alternative an epoxy coating or paint. Can gunite be polished smooth enough (along with some type of wax/sealant) to work on a slide? I'm guessing the initial polishing would require a variety of diamond polishing discs and compounds, but I can probably handle annual maintenance with a few discs and the tools I own. When the company comes out, I can ask that they remove the existing flaking finish. I plan to discuss polishing with them, but would like to be armed with some information ahead of time.

Here's a photo of the slide...

20210601_060346.jpg
 

RonsPlc

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May 31, 2015
1,002
Gaylesville, AL
Pool Size
14000
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Vinyl
Chlorine
Liquid Chlorine
I would be REALLY tempted to try laying in a fiberglass layer over the gunite through the trough of the slide if was mine.
But I don't know if that would be do-able in that situation.
Some of the experts here will surely speak up, and correct me if I'm wrong.
 

Rancho Cost-a-Lotta

Silver Supporter
Apr 10, 2018
2,403
Rancho Cucamonga, CA
Pool Size
18735
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
CircuPool RJ-45
I would be REALLY tempted to try laying in a fiberglass layer over the gunite through the trough of the slide
I've thought about this, but I think a one-off job of this type would be costly. Maybe I'm wrong?

I saw an earlier post where a gunite chute was finished in tile. I'll look into this as well...
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