Natural stone sealant
Natural stone sealant
NATSTNSEAL-BLACK-310ML
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Excellent compatibility with natural stone
With conventional sealants, discolourations around the edges frequently occur due to silicone oils. Thanks to a special recipe, natural stone sealant is the only sealing compound to prevent these kinds of discolourations.
Outstanding suitability for high stresses outdoors
Very high resistance to ageing, weathering and UV
Permanently elastic
Special information on suitability for insulating glass:
Natural stone sealant should only be used in conjunction with primary sealing. When using treated glass, compatibility must be checked in advance. Excellent adhesive properties on most glass used in the production of insulation glass, e.g. sheet glass, laminated and treated glass, aluminium spacers etc.
Complies with building material class B2 in accordance with DIN 4102.
Due to the large number of varnish and glazing formulations available, especially on alkyd resin paints and powder-coated aluminium, always carry out your own tests on the area first. Remove excess smoothing agent from the surfaces. Risk of yellowing on contact with white alkyd resin paints cannot be excluded. The transparent colour is adjusted to be milky/cloudy. Does not cause soiling around the edges of natural stone. (Migration of the softener from the sealant into the natural stone. If the surface is soiled, it may not be possible to completely remove the sealant and it may result in discolouration of the surface.) Natural stone sealant is not suitable for adhesive bonding or filling cavities.
For materials and substances that come into contact with the sealant after processing, the user must ensure that their content or fumes cannot cause any impairment or alteration (e.g. discolouration) of the sealant joint. 5995000403To determine the precise colour, use sample card art. no.
Tested in accordance with EN 15651 Parts 1, 2, 3 and 4
- Fire behaviour: Class E
- Stability under load: ≤ 3 mm
- Volume loss: ≤ 10%
- Tensile behaviour under pre-stress: Passed
- Adhesion/expansion on immersion in water: Passed
- Adhesion/expansion after exposure to heat, water and artificial light: Passed
- Tensile behaviour at -30°C: ≤ 0.9 MPa
- Tensile behaviour under pre-stress at -30°C: Passed
The usage instructions are recommendations based on the tests we have conducted and our experience; carry out your own tests before each application. Due to the large number of applications and storage and processing conditions, we do not assume any liability for a specific application result. Insofar as our free customer service provides technical information or acts as an advisory service, no responsibility is assumed by this service except where the advice or information given falls within the scope of our specified, contractually agreed service or the advisor was acting deliberately. We guarantee consistent quality of our products. We reserve the right to make technical changes and further develop products.
Datasheets(X)
- For joining natural stone, e.g. granite and marble
- For use indoors and outdoors
- Suitable for photovoltaic systems
It must be ensured that air can be exchanged correspondingly during the hardening phase. In addition, direct contact between the conductors and the sealant should be avoided.
- Suitable for laminated safety glass
Please observe the "General Notes on Application for Sealants" and "Construction Material Compatibility of Würth Sealants" overview sheet.
Contents | 310 ml |
Container | Cartridge |
Colour | Black |
Chemical basis | Neutral crosslinked silicones, oxime-based |
Density | 1.03 g/cm³ |
Min./max. processing temperature | 5 to 40 °C |
Min./max. temperature resistance | -40 to 120 °C |
Surface pre-treatment required | Not on natural stone, can lead to discolouration |
Smell/fragrance | Faint odour |
Continuous motion absorption | 25 % |
Min. breaking elongation | 150 % |
Breaking elongation conditions | for 2-mm film |
Min. skin-formation time | 10 min |
Conditions for skin-formation time | at 23°C and 50% relative humidity |
Full curing speed | 2.5 mm/d |
Fully hardening/curing conditions | 23°C and 50% relative humidity |
Recoatable/Can be painted over | No |
Ultraviolet resistance | Yes |
Shelf life from production | 18 Month |
Building material class | B2 - Normally inflammable |
Building material class conditions | in accordance with DIN 4102 |
Fungicidal properties | Yes |
Select RAL-colour code
!! NOTE: On-screen visualisation of the colour differs from real colour shade!!
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