WACKER® 460 - NATURAL STONE
WACKER® 460 - NATURAL STONE is a one-part, neutral, low modulus silicone sealant for sealing natural substrates such as marble. It is equally suitable for further indoor use or in sanitary applications.
WACKER® 460 - NATURAL STONE cures at room temperature in the presence of atmospheric moisture to give a permanent flexible silicone rubber.
- suitable for use in sanitary areas
- long shelf life
- primerless adhesion to most materials
- non-corrosive to metals
- suitable for alkaline substrates such as concrete, mortar, fibrous cement
- almost odorless
- ready gunnability at low (+5 °C) and high (+40 °C) temperatures
- rapid crosslinking: quickly becomes tack-free
- flexible at low (-40 °C) and high temperatures (+150 °C)
- excellent weatherability
The substrate areas that will be in contact with the sealant must be clean, dry and free of all loose material such as dust, dirt, rust, oil and other contaminants. Non-porous substrates should be cleaned with a solvent and clean, lint-free, cotton cloth. Remove residual solvent before it evaporates with a fresh clean, dry cloth. For application from cartridges cut thread open, fix nozzle on top and cut to required bead size. The sealant can be applied in beads or layers. It requires moisture in order to cure.
The curing time can take longer at lower temperatures, lower humidity or by low volume of air exchange.
Restrictions on use WACKER® 460 - NATURAL STONE is not suitable for insulating glass applications.
WACKER® 460 - NATURAL STONE is not recommended for sealing of aquarium or for long term use under water. WACKER® 121 - AQUARIUM has been specifically developed for aquarium applications.
It is the responsibility of the user to test the compatibility of the sealant with the adjoining materials. Incompatible substances like coatings or organic plasticizers can lead to discoloration of the sealant. Cleaning agents and gaseous emissions can damage the sealant in its function or change its appearance. WACKER cannot make a general statement to the compatibility of all these varying materials with the sealant. In case of doubt the user shall conduct appropriate preliminary tests.
- Specially developed for sealing of natural substrates
such as marble, granite, sandstone and quartzite
- Sealing joints for interior and exterior facades
e.g. for sanitary applications where natural
stone is the substrate*
Adhesion WACKER® 460 - NATURAL STONE exhibits excellent primerless adhesion to most non-porous siliceous materials (e.g. glass, tiles, ceramics, enamel, glazed tiles); metals (e.g. aluminum, steel, zinc or copper); impregnated, varnished or painted wood; and some plastics.
Users must carry out own tests due to the great variety of substrates.
For critical applications in facades made of natural substrate we recommend using WACKER® Primer G 783.
WACKER® 460 - NATURAL STONE is usually supplied in standard size cartridges that fit all standard caulking guns.
The 'Best use before end' date of each batch is shown on the product label.
Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.