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LIMESTONE SEALER - Colour Enhancer - Rich, Beautiful Finish (Sample,1, 5 & 25 litre) Easy to Apply, Highly Protective Sealer

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Customer Reviews

I called Smartseal for advice prior to purchasing the right sealer for my limestone and spoke to George. If only all customer sales/helplines were like this. I got through quickly, George was concise and friendly. What a great experience. When this might be your first and only experience with a company, is amazes me that so many other companies get it wrong. Thanks George.

By James Davison From Devon

The results were good, but I think my slabs have a lot of mineral marks that sealants cant touch, so its not a 100% success, but significantly better than it was previously. I got excellent assistance, including a message response on a Sunday morning.

By Matt Edwards

Fantastic.. bought the colour enhancer sealer as wanted our grey limestone to appear darker.. wow.. what a difference in colour.. used a brush around the edges and a roller rather than a spray.. quite enjoyable tbh.. has been on for about 2 weeks so far and time will tell durability but looks great so far.. looking to use for existing patio and driveway block paving.. great company and product.. definitely recommended

By Mark Bishop

Excellent results on my Indian Limestone patio, wished Id have know about it as soon as the patio was laid rather than months later!

By Mike B From Somerset

excellent sealer, better than i exspected colour also. would recommend for sure! bit exspensive, but you pay for what you get. its worth every penny. only had it down for a wk and it looks perfect even after all this rain. will be buying more for sure. thankyou smartseal!

By Alan Thomas

Very good

By Colin Ellis

The sealer arrived within a couple of days but the bottle seemed underfilled. I called them and they sent a replacement bottle out free of charge. I've used this sealer before but in the matt finish but wanted to enhance the black limestone step that was just built. The coverage was much better on the black limestone and the finish after the second coat is fantastic. Unlike before though, this time I used a roller and not a sprayer which seemed to work better with more even coverage. Highly recommended.

By Mark Fairclough From Lancashire

I decided to by this product after reading all of the reviews. However I would recommend being wary of applying with a sprayer, I followed instructions to the letter, one saturated coat and then another wet on wet and it seems my stones did not absorb as much as I thought they would, as a result the product literally set on top of the stones, some areas pooled and basically I was left with a thick waxy layer on top with a milky appearance. Smart seal were very helpful with their advice and recommended I use a product to remove pooled areas but once I did this it started looking like a patchwork quilt. In the end, I stripped the whole lot off and now have to re apply the sealer again. I will apply in a different way now though. Cost me two lots of sealer plus the stripping product. I'll be honest and say I am fed up and disappointed with my first result but Smartseal did respond very quickly and with their help and advice.

By Stephen Hill

Great service, the sealer is easy to apply, following the instructions, and has given a very high quality finish, will buy more of Smartseal products.

By Christoher Plenty

Excellent product, we only bought the sample to check it out but will be buying the full product this week

By JOHN WILLIAMS From Merseyside

Great product, odd milky watery texture to apply. The limestone absorbed it very quickly which meant one had to get moving to distinguish which parts hadn`t been done. I bought two 5 litre tubs which only just managed to cover my 80msq patio, but it looks nice now, only issue is for some reason the dogs nails are leaving marks on it when he runs for the ball? It arrived quickly with the cleaning product which was more of a success, took all the spots off etc which I had been trying to do for years with my jet washer! If only I knew about it sooner!

By Clive Elms

Used on black indian limestone which untreated looks more like a greyish blue colour. Applied using a large roller and kept an eye out for lines caused by the edge fo the roller after the 2nd coat - ran over those with a dry roller to even out about 40 mins after application. End result is pretty stunning - a very dark ( almost black ) finish with a very slight waxy / wet look. Very impressed with the product.

By Paul M

Wow what a difference this makes, fantastic results. Panic set in when I applied it even though I had watched the video twice. Will certainly use again when it is needed.

By David Hughes From Wiltshire

Very good product easy to use on Limestoneu and it brings out the colors in the stone

By John Adams

Excellent sealer rolled 2 coats on limestone patio, superb result, definitely recommend

By Reece Canham

i was a little apprehensive about the product before use, but i used a pump action pressure sprayer and the difference was immediate and stunning - really pleased and have plenty to reapply whenever the sheen fades

By simon cornwell
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Step-by-Step Video Guide

Colour Enhancing Impregnating sealer for Limestone patios and floors

Protective impreganting sealer for Limestone patios and floors

Smartseal Limestone Sealer is a high quality, clear, solvent free acrylic impregnating coating system. Application of the sealer will alter the chemical structure of the porous limestone providing a excellent water repellent and stain resistant surface.

The sealer will give a colour enhancing effect once dry to bring out the original colour of the Limestone.

  • One coat application
  • 1 x 5 litre will treat up to 30 - 50m on average
  • Highly resistant to algae, lichen and staining
  • Will leave surface 'damp' or 'wet' looking dependent on porosity of surface
  • Average coverage: 6 - 10m per litre
  • Application by roller or sprayer or suitable cloth
  • Touch dry 2-3 hours
  • Fully water-resistant in 24 hours
  • Lifespan of approx. 5 years can be expected
  • Suitable for Limestone can be used externally or internally



PREPARATION: Prior to application of limestone sealer or natural stone sealer ensure surfaces to be sealed are clean, dry and free from contamination. If algae or stains are present pre treat prior to cleaning with a appropriate cleaning product.

**If being applied to a recently laid external Limestone patio or path, where a "sweep-in" pointing compound was used, as a precautionary measure we advise the natural stone being fully cleaned with Smartseal Residue Remover prior to sealant application.**** Please get in touch for further advice.

APPLICATION: A suitable pressure sprayer or roller is recommended taking care to avoid any pooling. Application on all substrates should be to full saturation and on vertical surfaces commence at the bottom and work upwards.

For internal surfaces application by a suitable cloth is appropriate.

Average coverage: 6 - 10 m per litre depending on porosity of the Limestone.

Important: Remove any excess within roughly 45 minutes, this can be done with a dry cloth or sponge.   

Do not apply in damp condition, aim for sealing temperatures 12-15C and above. Shake container well before use.

All equipment should be cleaned with water immediately after use.

SHELF LIFE: 12 months (in original sealed container).

Store away from direct sunlight and sources of heat. Protect from frost.