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Are you considering ecoFINISH for your vinyl liner pool? It’s important to know that ecoFINISH is not suitable for liner pools. This high-performance coating is engineered for solid surfaces like concrete and fiberglass—and using it on a liner pool can actually cause serious problems.
In this article, we’ll explain exactly why ecoFINISH doesn’t work on liner pools, and offer better alternatives for resurfacing or upgrading your vinyl-lined pool.
Key Takeaways
- ecoFINISH is not a waterproofing product—it’s a protective coating that must go over a surface that’s already watertight, like plaster or fiberglass.
- Vinyl liners are the waterproofing layer in a liner pool. If you remove the liner, the bare structure underneath (usually metal or plaster) has gaps and seams that won’t hold water on their own.
- ecoFINISH can’t be applied directly to a vinyl liner—it would melt, warp, or burn the liner, and damage the structure beneath.
- Applying ecoFINISH to a liner pool can result in costly damage, leaks, or complete failure of the pool structure.
- Better options for liner pools include vinyl liner replacement or coatings designed specifically for flexible surfaces.
What is ecoFINISH?
ecoFINISH is a thermoplastic polymer coating system applied using a high-temperature flame spray. It forms a strong, protective shell over a pool’s surface, offering durability, UV stability, and a customizable look.
But ecoFINISH is not a sealant. It’s designed to coat and protect already solid, watertight surfaces and DOES NOT create create waterproofing on its own.
Why ecoFINISH Doesn’t Work for Liner Pools
Liner Pools Rely on the Liner for Waterproofing
Vinyl liner pools aren’t built to hold water on their own. The pool shell underneath—whether it’s metal panels, bare plaster, or a combination—is not watertight. When you remove the liner, you’re exposing gaps, seams, and penetrations that water can easily leak through.
ecoFINISH doesn’t fill or seal these areas. It simply coats whatever surface is underneath. So if you remove your vinyl liner and spray ecoFINISH over the base, water will still leak through corners, seams, and fittings—possibly causing structural issues.
In short: ecoFINISH can’t replace a vinyl liner, because it doesn’t make the pool waterproof.
The Application Process Can Ruin a Liner Pool
ecoFINISH is applied using equipment that heats the coating material to around 800°F before spraying it onto the pool surface. That’s far too hot for a vinyl liner, which would melt, warp, or burn under those conditions.
Trying to apply ecoFINISH to a liner pool would almost certainly result in severe damage—either to the liner itself or the structure beneath it. It’s not just ineffective, it’s dangerous for your pool.
ecoFINISH uses a special coating process to make pools look great. This unique method sprays on a tough layer that sticks well due to the patented process, however, only to certain pool surfaces can handle the heat.
Where ecoFINISH Does Work Best
ecoFINISH is an excellent choice for pool surfaces that are:
- Plaster (concrete or gunite)
- Fiberglass
- Exposed aggregate or tile that’s been prepped appropriately
These surfaces are solid, stable, and waterproof—either on their own or with proper preparation. ecoFINISH bonds well to these materials and offers long-lasting results with minimal maintenance.
Better Options for Liner Pool Owners
If you have a vinyl liner pool, don’t worry—there are still great ways to refresh its look or extend its life:
Vinyl Liner Replacement
The most common and practical option is replacing the liner entirely. Today’s liners come in a wide range of patterns, colors, and thicknesses. This restores the pool’s watertight seal and gives it a brand-new appearance.
Coatings Made for Flexible Surfaces
Some specialized paints or coatings are designed to work with flexible vinyl materials. While not as long-lasting as a full liner replacement, they can sometimes offer a short-term cosmetic refresh. These should only be considered after speaking with a pool professional.
Conclusion
ecoFINISH is a powerful, durable coating—but it’s not for every pool. If you have a liner pool, applying ecoFINISH is not only ineffective, it can cause permanent damage and won’t keep your pool watertight.
Stick with proven solutions like vinyl liner replacements or expert-approved alternatives. And always consult a pool professional before making changes to your pool’s surface.