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Ultimate Colour Enhancer - NOT recommended for Limestone, Granite or Slate

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StarStarStarStarStar 17 Reviews|(5/5)
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Customer Reviews

Wow. This is good stuff. I thought about buying a cheaper product but this really does enhance the colour and pattern in the sandstone. I wish Id taken a before and after photo. I did two coats within two hours and in late September when it was 17 degrees (has to be 15 and above). Hope it lasts a few years.

By Roy Bowdery From Stevenage

Used this after the extreme clean when the patio had a few days drying we decided on the ultimate enhancer and we are pleased we had that one as it has brought the colours out, even the very pale ones and we can see all the fossilized corals now. Highly recommend this even though it may seem expensive its worth it

By Lesley Stedmon From Worcestershire

Hi Nigel, You spoke to me on Monday with some advice regarding your Smartseal Products and I wanted to send you a couple of photos to show you how vivid the jewel colours in the Indian stone had come up. I can't tell you how pleased we are as the difference is quite remarkable. Unfortunately, we didn't take before photos. Regards Janis Green

By Janis Green From Warrington

Great product: I brushed it onto my Indian sandstone patio (11m x 3.5m) as the stones were riven and so needed thorough application to get into all the surfaces: the liquid isnt thick enough for use with a roller and I considered a sprayer too omni-directional to be effective. The finished effect is darker with a soft matt finish, and really allows the natural stone to look its best. Hard work and not a cheap product but well worth it. Note of caution: I had to clean off bird excrement that morning so used minimal water and absorbent towel to lift it but it still affected the final finish in that isolated area. If you jet wash two days in advance as required by the instructions, try a tarp cover in the meantime to prevent this.

By Kris Hand From Shardlow

Used on rainbow sandstone, it brings up the colour nicely and is easy to apply.

By Paul Allen

Nice stuff easy to apply bit darker than what I thought but still Looks great

By Craig Hannaway

I have to say I am well impressed. Refurbished the hard landscaped garden with Indian Sandstone. It was laid in March and although it looked really good the colours only really showed when wet. The area is 90 square metres of multiple shapes and levels. At the end of May I gave it a light pressure wash and was lucky to have 3 days of dry warm weather. Once dry I vacuumed it with the Karcher wet n dry vac, this picked up the dust and bits of leaves and tree frons etc. Possibly overkill but I wanted to give it the best surface I could. I applied the suggested wet on wet with a cheap garden sprayer with second coat at about 25-30 mins. After about an hour I dabbed up the small white pools that remained with a sponge. The result is fantastic. The colours are richer with a slight sheen. More damp than wet but certainly not artificial or glossy. We had rain a few days later and the water formed droplets akin to a waxed car. I highly recommend the Ultimate colour enhancer. I used about 12 Litres. Not cheap but well worth protecting the investment in the paving. I also coated the reclaimed brick wall areas and these look good and enriched too.

By Alan Jones

When we first contacted Smartseal about their products, MANDY Farr could not have been more helpful with her knowledgeable advice,a few weeks later, when the weather gave us an opportunity to use ultimate enhancer, we had a bit of a panic when the sealer was pooling a little in places, we took a chance that there might be a contractor at their premises at two minutes past seven am to give us some advice, a lady said she would get someone to call back asap, four minutes later Nigel Blake, one of the owners of smartseal , who I found out later was on holiday in Devon, phoned me back and talked me through the problem which resulted in a first class finish,what a fantastic company !

By Gerry Sheahan From GFS Building Maintenance

Ordering & delivery process was seamless, product was as exactly as described on website, I did order a sample bottle to try before investing in the larger bottle. Very please with result on our Indian Rainbow Sandstone.

By Kenneth North

I have a sandstone patio which looked insipid. Once the enhancer was applied the colours stood out more and it looked like the photos in the brochure. Easy to apply and used the exact amount as specified.

By Anthony Lawer From Ruislp

Really disappointed in this. I had high hopes. Tiles looked no different.

By Kathryn Hammant

Brought the colour of the natural stone out beautifully. Paving Needs two days drying time after cleaning and Enhancer eight hours drying after application so needs careful planning in our conditions. However easy to apply (used a sprayer). Lots of rain since and water seems to be 'floating' off nicely rather than sinking in. Will be a while before I can judge the effect on the algae on my North facing patio.

By Steven Ott

Good product. Easy to apply. Only did one coat and the slabs look great. After we ordered the sales staff called and gave us some advice and checked we were using best product for the paving slabs that we have. Would use again.

By S Whiston

Very good product and it does exactly what it says.

By John Adams

Sample arrived in super fast time.Tried some In a corner,well pleased.Ordered 10 litres of sealer again came in no time.Have done some of our sandstone but due to the weather have yet to complete. Very pleased so far.

By Tony Beeson From Cannock

Product was easy to apply, I used a small roller and did the slabs individually (Indian Sandstone) to ensure even coverage, adding a 2nd coat within 30 minutes as per instructions. The final finish brings out all the natural colours, a bit like a wet look but without the shine. After speaking to one of the technical guys at Smartseal he confirmed that a top up application can be added a few months down the line if required but not essential, which is good news if you want to maintain colour. I've only given 4 stars and not 5 because of the price compared to some competitors.

By Kerry Hammond

Bought a sample of this along with the standard Colour Enhancer as I wanted to see the difference in the "flesh" so to speak. I found that the standard one was not dark enough on the lighter coloured sandstone such as light greys so opted for the Ultimate Enhancer. I used a small mini roller to apply it, waiting about 20-30 mins before topping up with the 2nd coat. Personally I think the standard enhancer is ok colour wise on darker colours but when you have a mixture of colours such as Indian Sandstone then the Ultimate Enhancer pulls the colours out better. The overall finish is a mild sheen, not a completely dry look but also not too shiny. I did find though that with some colours on Indian Sandstone the final finish can very slightly alter, some dryer looking than others. I guess this is all down to how porus each stone is and how the product either soaks straight in or slightly sits on top. I did each stone individually ensuring an even coating, but I'm a fussy git. Only 4 stars due to being a bit expensive compared to some of it's competitors.

By Kerry Hammond
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Our Ultimate Colour Enhancing Sealer will transform natural Sandstone and Indian Sandstone patios, drives and floors. To avoid trapping in moisture, the sealer is fully breathable and once applied it will leave the surface with that 'just rained on' look, bringing to life the natural rich colours within the stone or slate. The Ulimate Colour Enhancer is a 'colour intensifier' for natural stone surface where the preferred look is when the surface has been rained in and the colours are darkened.

Step-by-Step Video Guide

The high quality unique non solvent formulation of this sealer for all types of Sandstone means it will not only dramatically improve the look of the stone, but provide long term protection as well.

By 'impregnating' into the surface and sealing from within, our Ultimate Colour Enhancing Sealer offers the very latest in protection for all types of Sandstone including Indian Sandstone. Solvent Free and safe to use around animals, children and vegetation, the sealer is easy to use with application by roller, sprayer or paint brush.

**Please note: This product is NOT recommended for use on Limestone, Granite or Slate**

If your Natural Stone has been recently 'pointed' using a 'sweep in' pointing compound, please contact us before application on 01268 722500



This is dependant on the porosity and nature of the Sandstone, but the average is 6 - 10m per litre (always apply to a test area first).


Important: Once fully cured Smartseal Ultimate Stone Enhancing Sealer is extremely difficult to remove, please follow application procedure correctly or call 01268 722500 for additional advice.

  • Prior to applying, ensure the sandstone floor is totally clean and has been dry for at least 2 days. 
  • Apply in temperatures above 15C. Application is recommended by sprayer, roller, paint brush or on very dense surfaces by sponge.
  • Apply first coat evenly and generously. Allow to dry for about 1 - 2 hours. Remove any sealer residue after 15 - 20 minutes with a dry roller, cloth or dry sponge. 
  • Apply second coat with same process of removing any sealer residue after 15 - 20 minutes.

Make sure no rain is forecast for a least 8 hours after application. Do not attempt to clean using a pressure washer for at least 7 days after application.
Protect surrounding areas with masking tape, when applying the product, wear gloves and googles at all times. ALWAYS APPLY TO TEST AREA FIRST.

Avoid use of aggressive or abrasive cleaning products, failure to do so can reduce lifespan and effectiveness of the sealer.