Frequently Asked Questions
Universeal Sealants products are fantastic, professional grade solutions, but we know sometimes you need a bit of advice and help above and beyond the label description. To that end, we have put together some Frequently Asked Questions (FAQs) that we hope will give you some extra guidance and tips.
If you would like to ask us something in particular, why not send us a message.
- Enhance & Restore Limestone Sealer
- Grout Rescue
- New Clean 60
- No More Black Spot
- Patio Porcelain Floor Tile Sealer
- Rain-Off Sealer
Yes, using our nano-coating technology Rain-Off sealer will create a durable barrier, whilst allowing full vapour transmission. So the end result is a protective coating that is 100% breathable
Yes, Rain-Off will work equally well on both walls and floor surfaces. It is ideally suited for garden brickwork that often features horizontal and vertical surfaces.
With optimal weather conditions, Rain-Off should dry within 45-60 minutes. Times will be longer if it is cooler and if there is moisture in the air. Try to apply the sealer when warm, mild and dry weather is forecast for best results.
Yes, Enhance & Restore Limestone Sealer is designed to restore the lost colour of Black Limestone slabs. This product will restore the dark black colour whilst sealing the stone against water ingress and staining.
As a guidance the coverage is 15-20m2 per litre per coat, Enhance & Restore Limestone Sealer must be applied very thinly to the surface with 100% of the sealer penetrating in to the stone leaving a restored dark matt finish.
Enhance & Restore must be applied very thinly, all the sealer must soak in to the stone, any sealer residue left on the stone surface must be wiped or buffed off before it dries. if this doesn’t happen then issues like difficult to remove shiny sticky patches will occur.
Yes, Enhance & Restore can definitely be used on slate and most types of natural stone that has faded or needs a lift of the natural colours. Any questions please contact our technical helpline for more advice 01300-345898 (ext 2.).
Yes, like most other patio cleaners it is always advised to work safely whilst using No More Black Spot. We advise taking great care and to use personal protection, i.e eye protection, gloves and a mask where possible. Please don’t be concerned, this product is safe if used in a safe careful manner, we always advise best safe working practice.
Once all the Black Spots have turned White you are then ready to rinse the chemical off. It is very important that you do this carefully and safely, we DO NOT advise rinsing straight off with a pressure washer! This will produce airborne spray of neat chemical which if comes in contact with sensitive areas could cause damage. We STRONGLY recommend rinsing thoroughly with a hose first, this can be done safely. There after once all of the cleaner has been rinsed away you can then use your pressure washer to removed all the White Spots and thoroughly clean the patio.
If you require more advice and the product and your particular project please contact our technical helpline where one of our experienced advisers will be pleased to help on 01300345898 (ext 2).
After a single application of Patio Porcelain Floor Tile Sealer to the porcelain tiles if will offer a nice clear, durable, glossy finish.
Patio Porcelain Floor Tile Sealer is a very durable Nano-Coating, it is only necessary to apply a single application, we do not recommend applying a second coat as it may result in over application problems.
For best results Patio Porcelain Floor Tile Sealer needs to be applied with an even thin coat. To achieve this we recommend using a paint brush, micro fibre flat mop, paint pad, sponge or cloth. Using a roller can cause problems with inconsistent and over application of the sealer.
Yes, Patio Porcelain Floor Tile Sealer can be removed by using a chemical we manufacture call “Extreme Clean” applied neat and left to dwell for 15-20 minutes. Always do a test patch with the sealer to check suitability before progressing with the application of the patio area.
Patio Porcelain Floor Tile Sealer is very durable, if applied correctly you can expect it to last 3-5 years before reapplication.
We recommend applying Patio Porcelain Floor Tile Sealer very thinly, if the product is over applied it can cause problems with moisture clouding (white patches) if you experience these issues please contact our technical helpline for advise 01300-345898
Yes, you can purchase a small 200ml tester bottle to trial to check suitability before use.
Patio Porcelain Floor Tile Sealer applies a very layer of sealer that sits on top of the porcelain making it very easy to keep clean, it may cause the tiles to become slightly slippery only when wet. Always do a test patch to check suitability of the product for your project.
Yes, although we market Patio Porcelain Floor Tile Sealer for external patio areas, it is suitable for use in the home on all internal porcelain situations.
Coverage will vary depending on the surface texture of the tile, as a guidance we say approximately 15m2 per litre. We do know that some of our customers have achieved greater coverage on their projects with excellent results.
Yes, Patio Porcelain Floor Tile Sealer will protect your porcelain tiles from grease and general soiling, making it very easy to wipe clean and wash with a hose and soft broom.
Like all surface coatings they do eventually wear. Patio Porcelain Floor Tile Sealer is a very durable coating and has excellent resistant to surface scratching.
If you have a question that isn’t listed or require further information regarding this product please contact our technical helpline 01300-345898
Yes it definitely is, although this chemical is capable of damaging sensitive bedding plants and lawns, if you apply plenty of clean water to these areas just before and during the rinsing off process then the chemical will not have zero adverse effects to these sensitive areas.
There are a number of reasons why some of the black spot have not been killed and turned white. It is mostly due to not enough chemical has been applied to these more stubborn areas, or simply because it hasn’t been left long enough on the surface.
We recommend leaving a minimum of 2-3 hours before rinsing off, but that is only if all the black spots have turned white. NEVER rinse the chemical off before 100% of the black spots have turned white otherwise you will need to start again and apply more product to these isolated areas.
If necessary apply more chemical to the stubborn areas and leave 4 or 5 hours, whatever is necessary to achieve the perfect results.
ALWAYS DO A TEST PATCH FIRST, before applying all the product to your patio or paving areas.
Any problems or questions please contact our technical helpline for further advice 01300-345898
The ideal time to apply the product is on a day when the temperature is not too hot so that the chemical doesn’t dry out. Earlier in the morning or later in the day will help achieve best results.
We have carried out 100’s of successful tests on many different types of stone and concrete surfaces. Whether you have concrete slabs, Indian sandstone, limestone, slate, terracotta, block paving, if it has a Black Spot Lichen issue then this product will work.
If you are not sure please call our technical helpline 01300-34589
Like many patio cleaner this product could cause harm to pets or wildlife but only when wet, once you have thoroughly rinsed the cleaner off the patio it will cause no harm to any animals.
Before applying this product to your patio or paving, always read the instructions of use very carefully. Take Note to use personal protection.
The best application method is with a simple garden pump sprayer, if you haven’t got one then a watering can will do the same job. We recommend a coverage of approximately 4-5m2 per litre of neat cleaner.
This product is capable of causing damage to the grass and sensitive plants, if you apply plenty of water before and after rinsing the chemical then it will not cause any damage.
What we mean by this is, wet the patio or paving first before applying the cleaner, this will help to stop the chemical drying out inside the stone.
We manufacture all of our own products, the NO MORE BLACK SPOT is the strongest formula on the market. We abide by strict HSE (BPR biocide) regulations allowing us to manufacture this product.
Always do a test patch first, this will show you how long it is taking to kill the Black Spots and turn them white. It normally take 2-3 hours but in stubborn areas can be much longer.
Any problems please call our technical team for support and advise 01300-345898
To work correctly we recommend not exceeding a coverage of 5m2 per litre of cleaner, this means a 5L container will cover approximately 25m2.
There is only two reasons why the product hasn’t been 100% successful, either not enough product has been applied to the contaminated area or is has been rinsed off too soon.
NEVER rinse the cleaner off until all the Black Spots have turned completely WHITE. If most of the Black Spots have started to turn white but a few are still Black, apply a little more product.
Always Do a Test Area before proceeding with the rest of the patio.
Any problems please call our technical helpline where we will be happy to help and advise. 01300-345898
Grout Rescue Colour & Seal should not be used for outdoor applications as we recently revamped its polymer formulation for optimal internal results. We have a new external patio grout restoration and recolour formula coming very soon that is specially formulated with super strong polymers to guarantee its longevity in the face of environmental impacts relating to outdoor exposure.
Grout Rescue Colour & Seal is a durable, permanent sealer and should provide long-term colour protection. Depending on the type of cleaning products used, a fresh application may be required within 2 years, particularly if the cleaners use harsh chemicals as these attack the surface of the sealed grout.
We recommend that you use pH neutral cleaning products, such as Universeal Easy Clean to achieve long-life protection.
Yes, if you need a larger order of Grout Rescue Colour & Seal in a specific colour for a commercial project we can create a custom tint for you. A minimum quantity order applies and we will colour match your supplied colour swatch as closely as possible (limitations apply).
Please contact us on +44 (0) 1300 345 898 to discuss your requirements.
Due to the nature of Grout Rescue Colour & Seal, we cannot accept returns of any opened product. If you have ordered too much and have unused bottles, then yes, you may return those for a refund.
Please note that you must bear the costs of returning the product to us. Our address can be found here.
If you are undertaking a large project requiring multiple bottles of a colour, it is recommended that you empty all the individual bottles of Grout Rescue Colour & Seal into a larger container and mix well, this will create a consistent colour for the entire application.
Yes! Be careful and make sure you follow the instructions to ensure that the excess product is removed from the tile surface promptly. Once it dries, Grout Rescue Colour & Seal is a permanent seal and can only be removed with powerful solvent strippers, such as Universeal Pro-Strip.
A standard 237ml bottle of Grout Rescue Colour & Seal will cover between 3 – 15m2. Product coverage will vary due to the grout width, density, texture and the surface absorbency.
For specific coverage guidelines, download our Product Guide (PDF format).
New Clean 60 Patio Cleaner can be used on outdoor stone surfaces, whether horizontal or vertical. If using New Clean 60 on roof areas, be careful of spray and spillage and rinse off thoroughly with clean water.
As a general rule, we recommend that you try a small inconspicuous area before any application to your stone surfaces, regardless of the location. Always ensure you use adequate protection when working, we have sourced a value PPE bundle kit, giving you everything you need to complete the cleaning safely at a very affordable price.
New Clean 60 Patio Cleaner will restore outdoor stone surfaces to a greatly improved condition, regardless of the age and state of the stone. However, hard, encrusted matter such as black lichen will require a bit more effort as it will have become deeply embedded into the stone. If you have a lot of aged, hard lichen or black spots, we recommend that you keep an amount of cleaner back when you apply the solution (see below).
We recommend using a pressure washer when washing away the cleaner for heavily aged / dirty patios. The pressure will lift up the lichen and other stubborn materials that will have been loosened by New Clean 60.
For perfectionists, if you find that some black marks or tough lichen remains: a second, NEAT application using the saved over cleaning solution followed by another pressure wash will really eliminate all traces and give you a ‘good as new’ finish.
A standard 5 Litre bottle should be usually applied with a dilution ratio of 1:1, so a bottle gives you 10 litres of cleaning solution. When applied with a pressure sprayer, you will have up to 50m² of coverage area.
New Clean 60 Patio Cleaner strips back all the grime, dirt and encrusted matter from your stone surfaces, essentially giving you a blank canvas. The clean effect will last but ultimately with the passage of time grime and seasonal dirt will return.
By applying a Patio Sealer immediately after cleaning, you can seal in the clean, pristine finish. A protective barrier will prevent grime and dirt from sinking into the stone, so providing a cleaner, more durable finish. Cleaning new dirt will be much easier as it will be sitting on top of the stone surface and won’t have sunk into the top layer of the patio/driveway/path. We recommend you use our Universeal Patio Stone Sealer Range for outdoor patio stone – available in Natural Matt, Colour Enhanced, Satin Sheen and Wet Look finishes.
New Clean 60 Patio Cleaner has, amongst other compounds, an active biocide – this destroys organic vegetation such as weeds and moss between slabs or pavers. When you apply New Clean 60 to patios or pathways next to grass or similar vegetation, you must ensure you thoroughly wash away the cleaner at the end of the process.
Dowsing lawn and other areas with clean fresh water will dilute away the remaining cleaner and whilst it may temporarily lighten the grass, it will regain it’s natural colour shortly afterwards.
It’s all in the name! New Clean 60 Patio Cleaner is formulated to deliver excellent cleaning results in 60 minutes. You can of course leave New Clean 60 for longer, it will keep working and give an even stronger more powerful finish, but 60 minutes is the minimum we recommend to leave the cleaner in contact with the stone surface.