This includes all of our handy ‘how to’ guides for cleaning and sealing interior and exterior slate. Please Click Here to view our products & accessories for cleaning and sealing slate. Always work in dry weather and remember that the curing time is as important as drying time. Nice even thin coats will always work the best as application errors are unlikely and the likelihood of pudding is minimal. Work in sections and take your time! Never let the product puddle, you can keep spreading the product out with a microfibre flat mop, microfibre cloth or roller. Do not assume that thick coats or multiple coats (above 2) are better or more resilient. When sealing slate with Floorseal Slate Sealer thin coats are best. Once a patio has been washed down with water, cleaning solutions applied, rinsed off and probably pressure washed the slate may take some time to dry – possibly 48 hours! When cleaning work has been carried out you should wait at least 24 hours before any sealing work is planned. The general links to these products are above highlighted in blue. If you wish to use a matt finish product which deepens colour, please contact us for advice first as it’s slightly more tricky on natural slate. On balance, Floorseal Slate Sealer is probably the easiest of the 2 products to apply. In other words 2 ways of finishing slate, both with plus points. Floorseal Slate Sealer deepens colour and creates a sheen. Impregnators create deep colours and a matt finish so sometimes are picked in preference to a sealer like Floorseal Slate Sealer. Premium Stone Enhancer is the best form of impregnator to use and only requires one application. This makes using colour enhancing impregnators more difficult due to the need to diligently remove excess product. Slate is compacted mud/silt so it is fine-grained, sealers do not penetrate its surface quite as well as they would a sandstone. This is because, even though slate is absorbent, it is quite dense. This method of sealing is a little more difficult when sealing slate. These sealers can deepen colour without adding a sheen. Premium Stone Enhancer and Natural Stone Colour Enhancer are forms of impregnators that we recommend for this purpose. It is possible to seal slate with products which leave a matt finish and still deepen the colour. If it looks like rain please wait for more favourable conditions. Please consider the local weather conditions when sealing any exterior stone. You will need 24 hours of drying time and curing time when using any form of slate sealer. Usually, thick coats or lots of coats are weaker and more prone to puddling during application. Do not assume thick coats or multiple coats (more than 2) are ‘better’ they are not. The 1st coat usually requires a little bit more product, as the stone itself absorbs some sealer, and the 2nd coat will need less sealer.Īpplying thick coats or multiple coats on exterior slate is not advisable. Keep the 2nd coat thin and even, remember that this coat is now bonding to the first so you will use less product. The sealer will dry quickly, and a 2nd coat can be applied approximately one hour later. This is partly because the sealer is partially absorbed by the slate and also because the sealer contains levelling agents to help produce even coats. The sealer is quite a heavy white coloured liquid which rapidly becomes clear once applied. You should not see (or leave) any pooling or puddling. If you use a roller or paint pad it is important to apply the product in thin coats. It is also possible to apply Slate Sealer with a paint pad or masonry style roller. You only need two thin coats which should be applied approximately an hour apart. We also recommend approximately 4 weeks drying and settlement of the stone before sealing the slate.įloorseal Slate Sealer can be applied via a flat microfibre mop or even by hand using a microfibre cloth. Sealing a slate patio with Floorseal Slate SealerĮnsure your slate patio is totally dry after cleaning.
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