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Sealing Limestone around the Pool

Limestone is resistant to mould and bacteria, making it fabulous to use around your pool.

A deep penetrating sealant should be applied to the surface once limestone is laid. In areas close to salt water such as around a pool or close to the beach, it may be worth considering dip sealing pavers on all 6 sides in order to reduce the effects of any potential efflorescence.

Does outdoor limestone really need to be sealed?
With so many benefits, you would be crazy not to!

Limestone will vary in hardness and is always porous – if you apply a small amount of water to an unsealed limestone surface it will be absorbed in seconds. The porosity of limestone is also affected by the finish – for example a highly polished limestone is less porous in comparison to limestone with a honed (matte) finish.

Limestone pavers perform best when sealed for walkways, pool surrounds, courtyards, garden pathways, patios and driveways.

• Prevents Stains
• Prevents discolouration
• UV Protection against sun damage
• Preserve the colour
• Does not alter the coefficients of friction, or slip factor
• Extends the life of your pavers
• Reduces mould and algae growth
• Assists in eliminating the occurrence of efflorescence
• Protect your Pavers
• Enhance the look of your limestone with a penetrating colour enhancing sealer

If your outdoor limestone is sealed, substances do not have the ability to quickly soak into the surface, therefore all you need to do is wipe them as soon as you notice any potential stain.

Australian made penetrating, impregnating sealers are ideally suited to outdoor limestone.

Deep impregnating sealers can be used for all internal and external limestone and are ideal for use in wet rooms and swimming pool surrounds.

Incorrect use of sealers can lead to accelerated decay of poolside paving as some can trap salt within the stone.

Topical sealers should not be used outdoors as they can make the surface dangerously slippery and do not allow moisture in the stone to escape, leading to erosion.

• Oil
• Dirt
• Rust
• Grease from the BBQ
• Food/Drinks
• Sun-cream
• Fading from the harsh sun
• Erosion from rain, especially softer materials such as brick and marble
• Acids (Vinegar (2pH) Coffee (5pH) Orange juice (3pH) Soft drinks (3pH) Beer (4pH))
• Organic stains caused by direct contact with decomposing organic matter, such as leaves, bird or animal droppings, flowers, tea or coffee.

Outdoor limestone surfaces are subject to degradation of appearance through moisture, rain, foot traffic, UV rays, chemicals and other impurities such as oil, grease, acids and salt, which results in common problems such as cracking, pitting, spalling, dusting, discolouration, efflorescence and salt damage.

A deep penetrating sealer won't affect the slip resistance of your surfaces

is a premium penetrating sealer that you can use both for interior and exterior limestone tiles. This product penetrates deep in the stone, creating an invisible barrier against water and oil based stains. At the same time, it allows any built up vapour to escape. This product is well known because of its special molecular structure, which makes this sealer more resistant than other products.