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“In my opinion you pay for what you get, excellent product”
Able Landscaping

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“I couldn’t believe the price of stone sealers, I was told this product was very high quality, reluctantly I paid the high price but I have to admit it is doing an excellent job of keeping my patio stain free and clean over the winter time.”
Terry Dawson-Phillips

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“Amazing! Only one-coat and perfectly sealed!”
Claire King

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“Expensive product, but well worth the investment. Excellent results still working after 2 years!”
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Universeal One-Coat


Usage Guidelines

Coverage: Up to a maximum of 15m2 per litre per coat
Coverage is offered as guidance. Will vary depending on surface porosity, texture and application process.
Drying Time: 15-20 mins
Applications/Coats: 1-2 Coats
Application Method: Sprayer / Brush / Sponge
Dilution: Undiluted


Download a PDF Technical Application Guide


Universeal One-Coat NanoSeal stone sealer is a supreme solvent-based natural stone patio and path outdoor sealer. Using our unique Micromesh™ premium stain protection to prevent water and dirt from staining the stone surfaces.

Universeal One-Coat NanoSeal stone sealer is an innovative solvent-based impregnator developed to eliminate the need for more than one coat application to dense natural stone surfaces. Suitable for use with all porous and dense stone surfaces, including polished granites and marbles etc.

Special Features

  • Unique One-Coat application
  • Excellent penetrating properties for polished & dense stone
  • Exceptional unrivalled stain protection
  • Internal and external use
  • Long term protection


  1. Make sure the surface area is completely clean and dry before application. Universeal One-Coat NanoSeal stone sealer is a solvent-based liquid and must be used in well-ventilated areas due to the solvent smell.
  2. Apply the stone sealer generously until saturation of the stone surface. Allow the stone sealer to stay wet and in contact with the stone surface for at least 5 mins. Apply generously with a low-pressure sprayer, natural fibre brush, sponge or paint pad (we do not recommend using a roller).
  3. After approximately 15-20 minutes of application, remove any surface sealer visible on the stone by wiping it completely dry with an absorbent cloth. If any sealer residue is left on the stone surface to dry, to remove wipe clean with a cloth dampened with the solvent stone sealer.
  4. Always allow a minimum of 6 hours drying time before grouting, it is recommended that a small test area is done first to check against staining especially when using coloured or polymer modified grouts. In rare cases with very porous stone, it may be necessary to apply more than one application to achieve the desired effect.

Please Note:

Not applying stone sealer correctly to saturation of stone may result in inadequate stain protection. Always try the product in an inconspicuous area prior to use. Areas not to be sealed must be protected with masking materials. It is strongly recommended that at least one coat is applied before grouting, especially when using coloured grouts, after stone sealer is dry a stain test should be completed before proceeding to grout.

Expected Wear

Under typical conditions, the effect of the impregnation can be considered to have an effect for up to 10 years. Effectiveness and longevity is reliant on initial thorough application, foot traffic and the use of correct maintenance cleaning products.


Up to a maximum 15m2 per litre per coat.
Coverage is offered as guidance. Will vary depending on surface porosity, texture and application process.

External Chemicals: Handling

Please note, our outdoor chemicals must always be handled with care. Upon receipt of your goods, you should open the packaging in a safe, suitable outdoor environment. Despite our best efforts with robust, layered packaging, there is always a small risk that damage or leakage could occur during transit. Our chemicals have the potential to damage sensitive surfaces if left unattended and we do not recommend that you store them indoors unless specifically indicated.


H226: Flammable liquid and vapour.
H302: Harmful if swallowed.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H412: Harmful to aquatic life with long lasting effects.

P102: Keep out of reach of children.
P261: Avoid breathing fumes.
P262: Do not get in eyes, on skin, or on clothing.
P280: Wear protective gloves.
P301+330+331: IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
P302+350: IF ON SKIN: Gently wash with plenty of soap and water.
P305+351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P309+311: IF exposed or if you feel unwell: Call a POISON CENTRE or doctor.

Product SDS sheet available upon request.

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Additional information

Weight 6 kg
Dimensions 20 × 18 × 30 cm
Size Option:

150ml Tester, 1 Litre, 5 Litre

4.6 5 reviews
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