For optimum results and best protection, two coats of Smartseal natural stone sealer should be applied 'wet on wet' i. Smartseal Natural Stone Sealers are widely used in the domestic and commercial sector. The stone sealers are suitable for sealing Indian sandstone, limestone and slate.
Please call for further advice, information and to find out how you can restore your surfaces. If you prefer, you can see our enquiry form and contact us via there. Smartseal supply a range of natural stone sealer and natural stone sealant, Indian sandstone sealer and sealants for slate, limestone and terracotta.
Due to the composition of natural stone and slate products, laid internally or externally algae, staining and general soiling can be a consistent problem. Strippable coatings can be easily removed from the surface of stone. This form of coating is meant more for tile floors and not necessarily stone, so make sure to pick one specific to stone if you choose a strippable option. They also coat the minerals found below the surface of the stone.
By using a penetrating sealant, your stone is resistant to water, oil, and dirt. These sealants may be solvents or water-based, and tend to contain silicone, siloxane, methyl silicate, or other silicon derivatives.
Penetrating sealants can be divided into subtypes, and may be classified as either oil-repelling or water-repelling. Oil repelling options are called oleophobic, and they repel both water and oil-based liquids. This includes the above liquids as well as cooking oils, grease, and oils produced by the body. Oil-repellent options will always be hydrophobic, but water-repelling options will not always be oleophobic, so most homeowners go for those that are oil-repellent.
However, most impregnators have little or no effect on the appearance of the stone, so if you're looking for colour enhancement, you may need to use a specialist Colour Enhancer first, or opt for the coating and accept that you'll have to re-treat every couple of years or so. The so-called 'shortlist' of sealants that seem to perform better than most, based on the personal experience of pavingexpert.
We always like to hear about successes and failures so we can alert other site users about what to use and what to avoid, so get in touch with your experiences - and send photies!
An extensive independent and impartial trial featuring 24 different sealants has been carried out by pavingexpert. The procedure and results can be read starting at this page - Sealant Trials. Whenever sealants are used with paving, the fact that undoing any application which hasn't quite worked out has hoped is a thankless or impossible task should be borne in mind. However, with stone, the visual effect of a sealant can be far more dramatic than is the case with concrete products or clay pavers.
The image of black limestone above shows just how radically the appearance of a flagstone can be altered once a sealant is applied, so, even if the use of a sealant can be justified, its impact on the look and styling of the stone must be thoroughly considered before committing to apply.
Test on a sample piece of stone or a discreet corner, because once it's on, it can be damned hard to get off! It's important to understand that the nature of the stone will have an enormous effect on the finished look. While the effect on stone such as black limestone or Fossil Mint sandstone can be dramatic, on some honed granites, and on travertines and pale limestones, it can be almost impossible to detect that a sealant has been applied at all.
This is at least partly explained by the porosity of the stone, which also impacts on coverage rates as discussed below. On some highly porous stone, such as Mint Sandstone or Portland limestone, the paving will seemingly drink the first coat of sealant - it will literally sink into the body of the stone as soon as it is applied - and so multiple coats may be required to achieve the desired effect, while with more impermeable stone, such as certain granites and most types of slate, the sealant will simply sit there, on the surface, and will cure in-situ with little or none being absorbed by the stone.
A: Stains are broken into two 2 categories — water-based and oil-based. Cola, orange juice, tomato sauce, jelly are all examples of water based stains. Oil-based stains usually require a solvent-based cleaner. Examples of oil-based stains are cooking oil, hand cream, shampoo and peanut butter. If you are unsure which product to use on a specific stain, please contact their help number at A: If you put a drop of water on the stone and it beads off, then your stone is sealed and does not need to be re-applied at this time.
A: The answer to this question is not a simple one. Each product is going to cover a different amount of square footage or surface area. Each type of stone will absorb a different amount of sealer depending upon the porosity of the stone.
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