Rust stains on natural stone swimming pool tile such as Green Sukabumi and Limestone are a common problem in both residential and commercial properties. These stains not only spoil the visual appearance of the pool but can also accelerate surface deterioration if ignored. Surface damage or crumbling on natural stone typically occurs due to ongoing oxidation and mineral reactions over time.
Project Swimming Pool with Limestone
Some Factors That Causes Rust Stains on Green Sukabumi and Limestone
One of the primary causes of rust stains is the natural iron content inside the stone. Green Sukabumi and several types of Limestone contain iron-bearing minerals that can oxidize when exposed to direct sunlight and pool water, resulting in brownish rust-like discolorations on the surface.
Pool water condition also plays a critical role. When the pH level is unbalanced or the chlorine concentration is too high, the chemical environment becomes more aggressive and accelerates corrosion of metal materials around the pool. As a result, rust particles can circulate in the water and settle on porous stones.
Another factor often overlooked is the presence of items made from iron or low-grade stainless steel around the pool, such as ladders, water features, screws, or equipment. These components can rust over time, releasing iron particles into the pool water which then bond to the stone surface and create stains.
Rust issues may also originate during installation. If waterproofing is not applied before installing the stone, water can seep into the substrate beneath the stone and react with iron minerals inside. Over time, these minerals migrate to the surface, oxidize, and cause rust stains from within the stone.
How to Remove Rust Stains from Green Sukabumi and Limestone Pools
Green Sukabumi Stone- Product by Sandstonetiles
The good news is that rust stains can be removed safely without damaging the stone when the right method and products are used. Here are the recommended steps:
1. Start with a pH-Neutral Stone Cleaner
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Always begin with the gentlest method. A pH-neutral cleaner formulated for natural stone helps remove light stains without harming the surface. Avoid highly acidic cleaners, vinegar, or bleach-based products, as they can cause etching and permanent discoloration.
2. Use a Rust Remover Specifically Designed for Natural Stone Recommended: Terraclean
For deeper or more stubborn rust stains, use a rust remover that is safe for natural stone.
One recommended option is Terraclean, a cleaner formulated to remove rust stains, scale, and organic deposits from Green Sukabumi, Limestone, and other natural stone materials without damaging their porosity or surface integrity.
Terraclean works by targeting oxidation on the mineral surface while maintaining the structural durability of the stone, making it suitable for ongoing maintenance in swimming pools.
General usage steps for Terraclean:
1. Apply the product to the stained area.
2. Allow it to sit for the recommended activation time.
3. Scrub gently using a soft-bristle brush.
4. Rinse thoroughly with clean water to remove any residue.
3. Use a Poultice Treatment for Severe Stains
If the rust stain has penetrated deeply into the stone surface, a poultice treatment can be used to extract embedded contaminants from within the pores. This process typically requires 24–48 hours and is highly effective for old or heavy rust buildup.
4. Prevent Recurrence with a Stone Sealer
After cleaning, apply a high-quality stone sealer to reduce porosity and protect the stone from reabsorbing rust-causing minerals. A good sealer also simplifies routine cleaning and helps preserve the natural beauty of the stone for the long term.
Conclusion
Understanding the characteristics of natural stone before installation is essential to prevent issues such as rust staining or surface degradation. Factors like mineral composition, water chemistry, metal components around the pool, and waterproofing during installation all contribute to the long-term durability of Green Sukabumi and Limestone.
With proper cleaning methods and the right product including the use of Terraclean to remove rust stains your natural stone pool finishes can remain clean, beautiful, and long-lasting.
If you need guidance on choosing the right natural stone, solving rust stain issues, or selecting a suitable cleaning product, our team is ready to assist.
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