Welcome
Golden Sand Group, established in 1988, is a Hong Kong based trading company with over 20 years professional experience in marble and granite business.
We import various building materials from European factories.
Over the past 2 decades, our company had successfully completed many substantial government and commercial projects in Hong Kong;
namely, Regional Council Heritage Museum, Queen Elizabeth Hospital, MTRC Station Square at Airport Railway Station, Infrastructure For Penny's Bay Development Contract 1 Disneyland, etc.
NANO SEAL - Protects Your Masonry Once And Forever
Basic Working Principle
| It is believed that you must have come across so many renowned buildings in town, which are
covered by beautiful marbles or granites. The masonry is inevitably with water stains appearing
on its surface. To remove these water stains is practically difficult and costly. To replace the
moisten masonry costs much more. The masonry will be impaired by the ingression water and
eventually lost its beauty. All these problems on masonry can be completely solved by the
hi-tech product Nano Seal before the masonry are laid.
Nano Seal is a high performance masonry protector. The constituents in the product react chemically
with the carbon dioxide in the air forming an insoluble resin to protect the masonry surface.
The complete chemical reaction takes about 24 hours. Besides that, the Nano Seal can penetrate
into the masonry substrate to a certain extent, depend solely upon the surface porosity of the
substrate. The ultimate goal is that the treated masonry can be protected forever once it’s been
treated.
Owing to the simple application and high protection performance, this product has been widely
accepted by the end-users. Its application is so wide that it can be used in industry, commercial
and residential.
Nano Seal is a water repellent, non-flammable, water-based and non-toxic. The method of application
is so simple, you only need to use a sponge (or sprayer depending on the working circumstances)
rubbing it on any masonry surface, wait until the surface is completely dried. Then the function
of waterproofing, moisture barrier and anti-rotten exists. Nano Seal will not alter the colour of
the masonry, structure and other physical properties. In fact after the Nano Seal treatment, the
masonry surface is more clear and cleaner (voids being sealed off) and with the glamorous natural finish.
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Example of Use
| ‧Sandstone | ‧Granite | ‧Marble |
| ‧Fish hatcheries | ‧Paving stone/bricks | ‧All bricks (e.g. red, YTONG etc.) |
| ‧Factory/plant flooring | ‧Granaries and Patios | ‧Gas/oil service stations |
| ‧Asphalt roofing surface | ‧Cindercrete block | ‧Brick buildings without rendering |
| ‧Garage pad | ‧Asphalt shingles | ‧Concrete buildings |
| ‧Pools | ‧Driveways | ‧Sewage plants |
As a surface treatment product, Nano Seal has the following general applications:
| ‧All bricks (e.g. red, grey, green, YTONG, lightweight etc.) after treated by
Nano Seal, will immediate be waterproofed as well as reduced its water absorbility. |
| ‧For pedestrian pavement, sidewalk or driveway, Nano Seal can prolong its
durability. The main reason is because the freeze-thaw effect has been greatly minimized. |
| ‧For driveways with heavy traffic, if the water repellency effect is to be
maintained in high degree, it should be treated again at a certain time interval. |
| ‧For the processing of natural masonry such as limestone, sandstone, pre-casted and
ceramics, Nano Seal can stop the white alkaline coming out from the masonry surface.
Also it can improve the weatherability of the masonry. |
| ‧For roofing asphalt materials after treated by the Nano Seal, the asphalt surface can
become stain resistance, as well as to improve the adhesion between the floor tiles and the
asphalt. |
| ‧Nano Seal can absorb the natural mineral such as Perlite to reduce the water absorbility
of the substrate. Nano Seal can behave as a moisture barrier by sealing off the concrete surface,
gloss-surface tiles or decorative tiles etc. so that the moisture cannot penetrate through the
voids on their surfaces. |
Advantages & Function
| ‧For general applications on masonry, brick, pavement etc., one application will be sufficient. |
| ‧Nano Seal will not alter the colour of the treating substrate as well as its texture. It will also not alter the physical properties of the substrate. |
| ‧After the Nano Seal treatment, water and moisture cannot seep through the substrate. The Substrate dampness is improved. By then the substrate will be mold-free and fungal-free. No pitting, rutting and dusting will be occurred on the treated surface. |
| ‧It is so simple in the method of application. No thinning is required. You may spray, brush, roll or any other form of application. To choose the best method is entirely depending on the working environment. |
| ‧Owing to the fact that there is a good water repellency ability on the treated surface, therefore this is actually improving the coefficient of friction between the walking materials (shoes, tyres etc.) and the treated surface. The degree of safety has been increased for the pedestrians and running vehicles. Experimental results indicate that the wet coefficient of friction is increased and therefore it is highly suitable for walking (Australian Standard). |
| ‧In winter conditions, the surface voids have been completely sealed off by the Nano Seal and therefore there will be no entrapped moisture inside. This enables the easier removal of snow and ice. |
| ‧The impermeable layer formed by the Nano Seal does not allow the penetration of grease, oil, acids, alkaline and salts. |
| ‧The impermeable layer of the Nano Seal also enables easy cleanup of spills or dirt with mild soap and water. |
Coverage
1 litre of Nano Seal covers 20㎡~ 25㎡on smooth surface. (e.g. tiles, marbles, granites etc.)
| Remarks on Application: |
| 1. Shake well before use. No thinning is required. Use as supplied. |
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| 2. Chemical reaction will be taken place on some substrates such as glass, glazed surface or aluminium. Before application, cover these materials by used newspaper. The main reason is because of etching effect. In case of accidental contact, rinse thoroughly with water immediately. |
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| 3. For application on smooth surface, it is recommended to use a sponge for a very thin application. Do not attempt second coating. More attempts might form a layer of white crystal on the surface. If that happens, remove the residual Nano Seal immediately before it goes dry and hard with water or moisten cloth. |
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| 4. Nano Seal is not a grouting material or filler. It cannot be used to repair any visible cracks on the substrate surface. It is also not suitable to use on uncured or previously sealed asphalt. |
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| 5. Nano Seal is a water-based product and therefore if it was frozen - thaw out completely and shake well before using. Freezing will not harm the product. For winter applications, do not apply below 5℃. |
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| 6. After the application for 30 minutes, walking traffic can be allowed on the substrate surface. If this can be avoided, allow the surface to be fully dry before the traffic. |
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| 7. All equipment can be washed and cleaned by clean water after use. No goggles and/or breathing apparatus are necessary during application process. |
We strongly recommend that Nano Seal be applied to a small test area first.
Preparation Of Surfaces
| 1. For normal surfaces and/or new concrete applications, clean by Neutra Clean solution and power wash. Leave the treating surface fully dry before Nano Seal treatment. |
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| 2. For concrete surfaces only, we recommend that a deep penetration moisture barrier such as Tru-Seal solution be applied first to aid in the bonding of Nano Seal. |
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| 3. Any surface treatment such as paint or coating (other than the Tru-Seal solution) must firstly be removed for Nano Seal to be effective. Remove by scraping, grinding and/or apply suitable coating remover |
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| NOTE: While the harmful oil residue will be removed, stains from used motor oil may be permanent. |
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| 4. For normal application, use a sponge to rub lightly on smooth surfaces. This method is also suitable for dark colour substrate surfaces. For light colour and rough surfaces, spraying or brushing/rolling could be more suitable. |
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| 5. Allow the Nano Seal to be air-dried about 30 mins. The surface can then be water-tested. |
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| 6. Clean up equipment with water. |
Guarantee
The information given on these product data sheet is based upon tests believed to be accurate at the time of printing, but since we have no control over the working conditions, materials involved and the circumstances under which the purchasers stores, handles or used this material, we make no warranty or condition either express or implied, with respect to this material. We reserve the right to alter any of the foregoing information at any time without prior notice.
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